A premium white classroom seating solution featuring a tip-resistant leg design and a wipe-clean plastic shell for hygienic school environments.
Supportive educational chair in white with a textured finish and integrated lumbar support, specifically engineered to prevent students from leaning back.
Size chart showing school chair dimensions by age group, including height, seat depth, and weight for children aged 3 to 14+ years. Ideal for selecting age-appropriate classroom seating.

Overview

Features

Safety & Warranty

Specifications & Dimensions

Delivery & Returns

Product FAQs

Product Overview: Size 3 White Classic Anti-Tilt Chair

The Cobolt White Size 3 Chair is engineered specifically for the transition into Key Stage 2. Supplied with Free UK Mainland Delivery, it is designed to survive the "school test"—constant movement, heavy daily use, and the high-pressure environment of the modern primary classroom. By combining proactive safety geometry with an adult-strength frame, it reduces the maintenance burden on school estates while fostering a better learning environment.

The Cobolt Advantage

  • Budget Longevity: With a 15-year warranty, we eliminate frequent replacement cycles, ensuring your furniture budget goes significantly further over the next decade.
  • Estates-Friendly Design: The grey powder-coated steel frame is scratch-resistant and built for durability, ensuring the chair maintains its professional appearance for years.
  • Classroom Safety & Focus: Anti-tilt geometry removes the distraction of "swinging" on chairs, reducing the risk of falls and keeping the classroom environment orderly.

Ergonomics & Sustainability

  • BS EN1729 Compliant: Dimensioned for "Size 3" (ages 6-8), the shell supports the natural curve of the spine to prevent chronic back pain in developing students.
  • Eco-Conscious Choice: Proudly manufactured using 100% recyclable polypropylene and steel, supporting your school’s environmental and waste targets.
  • Waterfall Edge: The curved front seat maintains healthy blood flow during long lessons, preventing the restlessness caused by physical discomfort.

Vandal-Resistant Build

Junior classroom furniture must be tamper-proof. We utilise high-security fasteners to ensure the seat shell remains permanently attached to the frame, preventing students from dismantling the unit in busy environments.

The Cobolt Standard

  • 50 Years of Heritage: We are a trusted partner to the UK public sector, providing furniture that meets strict education compliance standards.
  • Free UK Mainland Delivery: We absorb shipping costs to keep school procurement simple and transparent.
  • Education Specialist Support: Our UK-based team is on hand to assist with bulk tenders and term-time delivery schedules.

Where is this Size 3 Anti-Tilt Chair used?

The White Size 3 School Chair is the standard for Junior Classrooms (Years 3 & 4), Primary School Libraries, After-School Clubs, and Children’s Libraries. Its adult-strength weight rating combined with junior-sized dimensions makes it a versatile asset for various Key Stage 2 settings.

Key Features

  • Anti-Tilt Frame – Angled rear legs make it physically difficult for students to tip the chair backwards, reducing accidents.
  • Size 3 (6-8 Years) – Standard ergonomic size (350mm seat height) for the middle primary age group.
  • 15-Year Warranty – Industry-leading guarantee covering all structural welds and shell integrity for total peace of mind.
  • Grey Powder-Coated Steel – High-grade metal frame that is scratch-resistant and exceptionally durable.
  • Stackable Design – Efficient vertical stacking allows for easy room clearing and floor maintenance.
  • Ribbed Polypropylene – High-impact shell that is resistant to ink, chemicals, and the rigours of daily school life.
  • Tamper-Proof Fixings – Secured shell-to-frame fasteners for maximum safety and longevity.
  • 100% Recyclable – Polypropylene and steel components can be fully repurposed at the end of the product life.
Warranty icon
15-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery
UK manufactured icon
Made in UK

Cobolt Service & Ethos: Supporting School Estates

  • 50 Years of Expertise: We understand the specific durability needs of high-traffic educational environments.
  • Free Delivery (UK Mainland): We handle all logistics costs for classroom refits to keep your project on budget.
  • Sustainability Partners: 100% recyclable components help you meet your school's environmental and waste targets.
  • Reliable Support: Our UK-based team assists with everything from single classroom replacements to full campus tenders.

Built for Safety. Backed for Reliability.

  • The Anti-Tilt frame geometry is specifically engineered to counteract the leverage needed to swing on the chair, protecting both the student and the chair's welds.
  • Compliance with BS EN1729 Part 1 ensures the seat height (350mm) and depth are ergonomically correct for users aged 6-8, preventing long-term spinal issues.
  • The Waterfall Seat Front reduces pressure on the back of the thighs, ensuring blood flow is not restricted during long periods of seated study.
  • Heavy-duty Tamper-Proof fasteners keep the shell securely attached to the frame, ensuring safety in busy primary classrooms.
  • We offer an industry-leading 15-year manufacturer's guarantee. This covers the structural welds of the frame and the integrity of the shell, providing long-term value for school managers.

The Size 3 White Anti-Tilt Chair offers certified ergonomic support with safety-first anti-tilt engineering. These specifications detail the materials and dimensions that make it the responsible choice for junior education.

Age Group
6-8 Years (Size 3)
Material
Recyclable Polypropylene
Guarantee
15 Years
Specification
Details
Purpose / Benefit
Seat Height
350mm
Standard Size 3 for ages 6-8
Seat Dimensions
370mm (W) x 300mm (D)
Ergonomically sized for KS2 juniors
Total Dimensions
670mm(H) x 410mm(W) x 470mm(D)
Balanced classroom profile
Unit Weight
3.5kg
Lightweight for easy stacking and moving
Frame Material
Powder Coated Steel (Grey)
Durable and scratch-resistant
Base Style
Angled Legs (Anti-Tilt)
Proactive tipping prevention
Stacking Ability
Yes
Efficient space clearing
Sustainability
100% Recyclable
Environmentally responsible disposal
Compliance
BS EN1729 Parts 1 & 2
Certified for education settings

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 5 Working Days service.

For all other locations, please email help@coboltfurniture.co.uk for a quote.


  • Made to Order: Many of our products are manufactured specifically for your order. Because of this, returns depend on the product specifics and require prior permission from Cobolt Furniture.
  • Cancellations: We always endeavour to reduce cancellation costs. However, please note a partial or entire charge may be levied to cover material costs and administrative fees if a made-to-order line is cancelled.

FAQs: Leading Primary School Seating Solutions

Q: Is a "Size 3" chair correct for my Key Stage 2 students?

A: Size 3 is specifically dimensioned for children aged 6 to 8 years. With a 350mm seat height, it is the industry standard for Year 3 and Year 4 classrooms, ensuring that students’ feet are flat on the floor to promote spinal health.

Q: How does the "Anti-Tilt" feature help with classroom management?

A: Students in this age group can be very active. The angled rear frame changes the leverage point, making it mechanically difficult for the chair to tip backwards. This proactively reduces classroom distractions and accidents.

Q: Is the white colour difficult to keep clean in a school?

A: No. The high-grade polypropylene shell is non-porous and resistant to ink and common school chemicals. It can be wiped clean instantly with standard anti-bacterial sprays, ensuring your classroom maintains a high level of hygiene.

Q: Are these chairs easy for cleaning staff to manage?

A: Yes. Weighing only 3.5kg, they are very lightweight. They are also stackable, allowing cleaning staff to clear floor space efficiently after the school day ends.

Q: Does this chair comply with BS EN1729 standards?

A: Yes. This chair is fully compliant with BS EN1729 Parts 1 & 2. Part 1 covers the ergonomic dimensions required to promote good posture, while Part 2 certifies the structural strength and stability needed for heavy-duty institutional use.

Q: Is it really 100% recyclable?

A: Yes. At the end of its life, the chair can be separated into its plastic and steel components, both of which are fully recyclable. This supports your school’s commitment to environmental sustainability.

Q: What does the 15-year warranty cover?

A: The warranty covers any structural failure in the frame welds or the integrity of the plastic shell due to manufacturing defects. This provides your primary school with exceptional long-term budget security.

Q: Why choose Cobolt Furniture for junior school seating?

A: With over 50 years of heritage, we are a trusted partner to UK education providers. We offer Free UK Mainland Delivery, expert advice, and products designed specifically for the rigours of school life.

Q: Are the shells secured to prevent vandalism?

A: We utilise tamper-proof fasteners to ensure the polypropylene shell remains permanently and safely attached to the steel frame, preventing students from dismantling the unit.

Overview

Product Overview: Size 3 White Classic Anti-Tilt Chair

The Cobolt White Size 3 Chair is engineered specifically for the transition into Key Stage 2. Supplied with Free UK Mainland Delivery, it is designed to survive the "school test"—constant movement, heavy daily use, and the high-pressure environment of the modern primary classroom. By combining proactive safety geometry with an adult-strength frame, it reduces the maintenance burden on school estates while fostering a better learning environment.

The Cobolt Advantage

  • Budget Longevity: With a 15-year warranty, we eliminate frequent replacement cycles, ensuring your furniture budget goes significantly further over the next decade.
  • Estates-Friendly Design: The grey powder-coated steel frame is scratch-resistant and built for durability, ensuring the chair maintains its professional appearance for years.
  • Classroom Safety & Focus: Anti-tilt geometry removes the distraction of "swinging" on chairs, reducing the risk of falls and keeping the classroom environment orderly.

Ergonomics & Sustainability

  • BS EN1729 Compliant: Dimensioned for "Size 3" (ages 6-8), the shell supports the natural curve of the spine to prevent chronic back pain in developing students.
  • Eco-Conscious Choice: Proudly manufactured using 100% recyclable polypropylene and steel, supporting your school’s environmental and waste targets.
  • Waterfall Edge: The curved front seat maintains healthy blood flow during long lessons, preventing the restlessness caused by physical discomfort.

Vandal-Resistant Build

Junior classroom furniture must be tamper-proof. We utilise high-security fasteners to ensure the seat shell remains permanently attached to the frame, preventing students from dismantling the unit in busy environments.

The Cobolt Standard

  • 50 Years of Heritage: We are a trusted partner to the UK public sector, providing furniture that meets strict education compliance standards.
  • Free UK Mainland Delivery: We absorb shipping costs to keep school procurement simple and transparent.
  • Education Specialist Support: Our UK-based team is on hand to assist with bulk tenders and term-time delivery schedules.

Features & Benefits

Where is this Size 3 Anti-Tilt Chair used?

The White Size 3 School Chair is the standard for Junior Classrooms (Years 3 & 4), Primary School Libraries, After-School Clubs, and Children’s Libraries. Its adult-strength weight rating combined with junior-sized dimensions makes it a versatile asset for various Key Stage 2 settings.

Key Features

  • Anti-Tilt Frame – Angled rear legs make it physically difficult for students to tip the chair backwards, reducing accidents.
  • Size 3 (6-8 Years) – Standard ergonomic size (350mm seat height) for the middle primary age group.
  • 15-Year Warranty – Industry-leading guarantee covering all structural welds and shell integrity for total peace of mind.
  • Grey Powder-Coated Steel – High-grade metal frame that is scratch-resistant and exceptionally durable.
  • Stackable Design – Efficient vertical stacking allows for easy room clearing and floor maintenance.
  • Ribbed Polypropylene – High-impact shell that is resistant to ink, chemicals, and the rigours of daily school life.
  • Tamper-Proof Fixings – Secured shell-to-frame fasteners for maximum safety and longevity.
  • 100% Recyclable – Polypropylene and steel components can be fully repurposed at the end of the product life.
Warranty icon
15-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery
UK manufactured icon
Made in UK

Cobolt Service & Ethos: Supporting School Estates

  • 50 Years of Expertise: We understand the specific durability needs of high-traffic educational environments.
  • Free Delivery (UK Mainland): We handle all logistics costs for classroom refits to keep your project on budget.
  • Sustainability Partners: 100% recyclable components help you meet your school's environmental and waste targets.
  • Reliable Support: Our UK-based team assists with everything from single classroom replacements to full campus tenders.

Safety & Warranty

Built for Safety. Backed for Reliability.

  • The Anti-Tilt frame geometry is specifically engineered to counteract the leverage needed to swing on the chair, protecting both the student and the chair's welds.
  • Compliance with BS EN1729 Part 1 ensures the seat height (350mm) and depth are ergonomically correct for users aged 6-8, preventing long-term spinal issues.
  • The Waterfall Seat Front reduces pressure on the back of the thighs, ensuring blood flow is not restricted during long periods of seated study.
  • Heavy-duty Tamper-Proof fasteners keep the shell securely attached to the frame, ensuring safety in busy primary classrooms.
  • We offer an industry-leading 15-year manufacturer's guarantee. This covers the structural welds of the frame and the integrity of the shell, providing long-term value for school managers.

Specification Dimensions

The Size 3 White Anti-Tilt Chair offers certified ergonomic support with safety-first anti-tilt engineering. These specifications detail the materials and dimensions that make it the responsible choice for junior education.

Age Group
6-8 Years (Size 3)
Material
Recyclable Polypropylene
Guarantee
15 Years
Specification
Details
Purpose / Benefit
Seat Height
350mm
Standard Size 3 for ages 6-8
Seat Dimensions
370mm (W) x 300mm (D)
Ergonomically sized for KS2 juniors
Total Dimensions
670mm(H) x 410mm(W) x 470mm(D)
Balanced classroom profile
Unit Weight
3.5kg
Lightweight for easy stacking and moving
Frame Material
Powder Coated Steel (Grey)
Durable and scratch-resistant
Base Style
Angled Legs (Anti-Tilt)
Proactive tipping prevention
Stacking Ability
Yes
Efficient space clearing
Sustainability
100% Recyclable
Environmentally responsible disposal
Compliance
BS EN1729 Parts 1 & 2
Certified for education settings

Delivery & Returns

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 5 Working Days service.

For all other locations, please email help@coboltfurniture.co.uk for a quote.


  • Made to Order: Many of our products are manufactured specifically for your order. Because of this, returns depend on the product specifics and require prior permission from Cobolt Furniture.
  • Cancellations: We always endeavour to reduce cancellation costs. However, please note a partial or entire charge may be levied to cover material costs and administrative fees if a made-to-order line is cancelled.

Product FAQs

FAQs: Leading Primary School Seating Solutions

Q: Is a "Size 3" chair correct for my Key Stage 2 students?

A: Size 3 is specifically dimensioned for children aged 6 to 8 years. With a 350mm seat height, it is the industry standard for Year 3 and Year 4 classrooms, ensuring that students’ feet are flat on the floor to promote spinal health.

Q: How does the "Anti-Tilt" feature help with classroom management?

A: Students in this age group can be very active. The angled rear frame changes the leverage point, making it mechanically difficult for the chair to tip backwards. This proactively reduces classroom distractions and accidents.

Q: Is the white colour difficult to keep clean in a school?

A: No. The high-grade polypropylene shell is non-porous and resistant to ink and common school chemicals. It can be wiped clean instantly with standard anti-bacterial sprays, ensuring your classroom maintains a high level of hygiene.

Q: Are these chairs easy for cleaning staff to manage?

A: Yes. Weighing only 3.5kg, they are very lightweight. They are also stackable, allowing cleaning staff to clear floor space efficiently after the school day ends.

Q: Does this chair comply with BS EN1729 standards?

A: Yes. This chair is fully compliant with BS EN1729 Parts 1 & 2. Part 1 covers the ergonomic dimensions required to promote good posture, while Part 2 certifies the structural strength and stability needed for heavy-duty institutional use.

Q: Is it really 100% recyclable?

A: Yes. At the end of its life, the chair can be separated into its plastic and steel components, both of which are fully recyclable. This supports your school’s commitment to environmental sustainability.

Q: What does the 15-year warranty cover?

A: The warranty covers any structural failure in the frame welds or the integrity of the plastic shell due to manufacturing defects. This provides your primary school with exceptional long-term budget security.

Q: Why choose Cobolt Furniture for junior school seating?

A: With over 50 years of heritage, we are a trusted partner to UK education providers. We offer Free UK Mainland Delivery, expert advice, and products designed specifically for the rigours of school life.

Q: Are the shells secured to prevent vandalism?

A: We utilise tamper-proof fasteners to ensure the polypropylene shell remains permanently and safely attached to the steel frame, preventing students from dismantling the unit.

White Classic Polypropylene Anti-Tilt School Chair - Size 3 - Ages 6-8

Product code: CH43WH
Modernise your junior and Key Stage 2 learning environments with the Cobolt White Classic Polypropylene School Chair (Size 3 / 6-8 Years). Specificall...

Inc VAT

Exc VAT

£52.00

£43.33

Colours - White
Age - 6-8 Years

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Trusted UK Supplier 50 years. Established. Reliable.

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Overview

Features

Safety & Warranty

Specifications & Dimensions

Delivery & Returns

Product FAQs

Product Overview: Size 3 White Classic Anti-Tilt Chair

The Cobolt White Size 3 Chair is engineered specifically for the transition into Key Stage 2. Supplied with Free UK Mainland Delivery, it is designed to survive the "school test"—constant movement, heavy daily use, and the high-pressure environment of the modern primary classroom. By combining proactive safety geometry with an adult-strength frame, it reduces the maintenance burden on school estates while fostering a better learning environment.

The Cobolt Advantage

  • Budget Longevity: With a 15-year warranty, we eliminate frequent replacement cycles, ensuring your furniture budget goes significantly further over the next decade.
  • Estates-Friendly Design: The grey powder-coated steel frame is scratch-resistant and built for durability, ensuring the chair maintains its professional appearance for years.
  • Classroom Safety & Focus: Anti-tilt geometry removes the distraction of "swinging" on chairs, reducing the risk of falls and keeping the classroom environment orderly.

Ergonomics & Sustainability

  • BS EN1729 Compliant: Dimensioned for "Size 3" (ages 6-8), the shell supports the natural curve of the spine to prevent chronic back pain in developing students.
  • Eco-Conscious Choice: Proudly manufactured using 100% recyclable polypropylene and steel, supporting your school’s environmental and waste targets.
  • Waterfall Edge: The curved front seat maintains healthy blood flow during long lessons, preventing the restlessness caused by physical discomfort.

Vandal-Resistant Build

Junior classroom furniture must be tamper-proof. We utilise high-security fasteners to ensure the seat shell remains permanently attached to the frame, preventing students from dismantling the unit in busy environments.

The Cobolt Standard

  • 50 Years of Heritage: We are a trusted partner to the UK public sector, providing furniture that meets strict education compliance standards.
  • Free UK Mainland Delivery: We absorb shipping costs to keep school procurement simple and transparent.
  • Education Specialist Support: Our UK-based team is on hand to assist with bulk tenders and term-time delivery schedules.

Where is this Size 3 Anti-Tilt Chair used?

The White Size 3 School Chair is the standard for Junior Classrooms (Years 3 & 4), Primary School Libraries, After-School Clubs, and Children’s Libraries. Its adult-strength weight rating combined with junior-sized dimensions makes it a versatile asset for various Key Stage 2 settings.

Key Features

  • Anti-Tilt Frame – Angled rear legs make it physically difficult for students to tip the chair backwards, reducing accidents.
  • Size 3 (6-8 Years) – Standard ergonomic size (350mm seat height) for the middle primary age group.
  • 15-Year Warranty – Industry-leading guarantee covering all structural welds and shell integrity for total peace of mind.
  • Grey Powder-Coated Steel – High-grade metal frame that is scratch-resistant and exceptionally durable.
  • Stackable Design – Efficient vertical stacking allows for easy room clearing and floor maintenance.
  • Ribbed Polypropylene – High-impact shell that is resistant to ink, chemicals, and the rigours of daily school life.
  • Tamper-Proof Fixings – Secured shell-to-frame fasteners for maximum safety and longevity.
  • 100% Recyclable – Polypropylene and steel components can be fully repurposed at the end of the product life.
Warranty icon
15-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery
UK manufactured icon
Made in UK

Cobolt Service & Ethos: Supporting School Estates

  • 50 Years of Expertise: We understand the specific durability needs of high-traffic educational environments.
  • Free Delivery (UK Mainland): We handle all logistics costs for classroom refits to keep your project on budget.
  • Sustainability Partners: 100% recyclable components help you meet your school's environmental and waste targets.
  • Reliable Support: Our UK-based team assists with everything from single classroom replacements to full campus tenders.

Built for Safety. Backed for Reliability.

  • The Anti-Tilt frame geometry is specifically engineered to counteract the leverage needed to swing on the chair, protecting both the student and the chair's welds.
  • Compliance with BS EN1729 Part 1 ensures the seat height (350mm) and depth are ergonomically correct for users aged 6-8, preventing long-term spinal issues.
  • The Waterfall Seat Front reduces pressure on the back of the thighs, ensuring blood flow is not restricted during long periods of seated study.
  • Heavy-duty Tamper-Proof fasteners keep the shell securely attached to the frame, ensuring safety in busy primary classrooms.
  • We offer an industry-leading 15-year manufacturer's guarantee. This covers the structural welds of the frame and the integrity of the shell, providing long-term value for school managers.

The Size 3 White Anti-Tilt Chair offers certified ergonomic support with safety-first anti-tilt engineering. These specifications detail the materials and dimensions that make it the responsible choice for junior education.

Age Group
6-8 Years (Size 3)
Material
Recyclable Polypropylene
Guarantee
15 Years
Specification
Details
Purpose / Benefit
Seat Height
350mm
Standard Size 3 for ages 6-8
Seat Dimensions
370mm (W) x 300mm (D)
Ergonomically sized for KS2 juniors
Total Dimensions
670mm(H) x 410mm(W) x 470mm(D)
Balanced classroom profile
Unit Weight
3.5kg
Lightweight for easy stacking and moving
Frame Material
Powder Coated Steel (Grey)
Durable and scratch-resistant
Base Style
Angled Legs (Anti-Tilt)
Proactive tipping prevention
Stacking Ability
Yes
Efficient space clearing
Sustainability
100% Recyclable
Environmentally responsible disposal
Compliance
BS EN1729 Parts 1 & 2
Certified for education settings

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 5 Working Days service.

For all other locations, please email help@coboltfurniture.co.uk for a quote.


  • Made to Order: Many of our products are manufactured specifically for your order. Because of this, returns depend on the product specifics and require prior permission from Cobolt Furniture.
  • Cancellations: We always endeavour to reduce cancellation costs. However, please note a partial or entire charge may be levied to cover material costs and administrative fees if a made-to-order line is cancelled.

FAQs: Leading Primary School Seating Solutions

Q: Is a "Size 3" chair correct for my Key Stage 2 students?

A: Size 3 is specifically dimensioned for children aged 6 to 8 years. With a 350mm seat height, it is the industry standard for Year 3 and Year 4 classrooms, ensuring that students’ feet are flat on the floor to promote spinal health.

Q: How does the "Anti-Tilt" feature help with classroom management?

A: Students in this age group can be very active. The angled rear frame changes the leverage point, making it mechanically difficult for the chair to tip backwards. This proactively reduces classroom distractions and accidents.

Q: Is the white colour difficult to keep clean in a school?

A: No. The high-grade polypropylene shell is non-porous and resistant to ink and common school chemicals. It can be wiped clean instantly with standard anti-bacterial sprays, ensuring your classroom maintains a high level of hygiene.

Q: Are these chairs easy for cleaning staff to manage?

A: Yes. Weighing only 3.5kg, they are very lightweight. They are also stackable, allowing cleaning staff to clear floor space efficiently after the school day ends.

Q: Does this chair comply with BS EN1729 standards?

A: Yes. This chair is fully compliant with BS EN1729 Parts 1 & 2. Part 1 covers the ergonomic dimensions required to promote good posture, while Part 2 certifies the structural strength and stability needed for heavy-duty institutional use.

Q: Is it really 100% recyclable?

A: Yes. At the end of its life, the chair can be separated into its plastic and steel components, both of which are fully recyclable. This supports your school’s commitment to environmental sustainability.

Q: What does the 15-year warranty cover?

A: The warranty covers any structural failure in the frame welds or the integrity of the plastic shell due to manufacturing defects. This provides your primary school with exceptional long-term budget security.

Q: Why choose Cobolt Furniture for junior school seating?

A: With over 50 years of heritage, we are a trusted partner to UK education providers. We offer Free UK Mainland Delivery, expert advice, and products designed specifically for the rigours of school life.

Q: Are the shells secured to prevent vandalism?

A: We utilise tamper-proof fasteners to ensure the polypropylene shell remains permanently and safely attached to the steel frame, preventing students from dismantling the unit.

Overview

Product Overview: Size 3 White Classic Anti-Tilt Chair

The Cobolt White Size 3 Chair is engineered specifically for the transition into Key Stage 2. Supplied with Free UK Mainland Delivery, it is designed to survive the "school test"—constant movement, heavy daily use, and the high-pressure environment of the modern primary classroom. By combining proactive safety geometry with an adult-strength frame, it reduces the maintenance burden on school estates while fostering a better learning environment.

The Cobolt Advantage

  • Budget Longevity: With a 15-year warranty, we eliminate frequent replacement cycles, ensuring your furniture budget goes significantly further over the next decade.
  • Estates-Friendly Design: The grey powder-coated steel frame is scratch-resistant and built for durability, ensuring the chair maintains its professional appearance for years.
  • Classroom Safety & Focus: Anti-tilt geometry removes the distraction of "swinging" on chairs, reducing the risk of falls and keeping the classroom environment orderly.

Ergonomics & Sustainability

  • BS EN1729 Compliant: Dimensioned for "Size 3" (ages 6-8), the shell supports the natural curve of the spine to prevent chronic back pain in developing students.
  • Eco-Conscious Choice: Proudly manufactured using 100% recyclable polypropylene and steel, supporting your school’s environmental and waste targets.
  • Waterfall Edge: The curved front seat maintains healthy blood flow during long lessons, preventing the restlessness caused by physical discomfort.

Vandal-Resistant Build

Junior classroom furniture must be tamper-proof. We utilise high-security fasteners to ensure the seat shell remains permanently attached to the frame, preventing students from dismantling the unit in busy environments.

The Cobolt Standard

  • 50 Years of Heritage: We are a trusted partner to the UK public sector, providing furniture that meets strict education compliance standards.
  • Free UK Mainland Delivery: We absorb shipping costs to keep school procurement simple and transparent.
  • Education Specialist Support: Our UK-based team is on hand to assist with bulk tenders and term-time delivery schedules.

Features & Benefits

Where is this Size 3 Anti-Tilt Chair used?

The White Size 3 School Chair is the standard for Junior Classrooms (Years 3 & 4), Primary School Libraries, After-School Clubs, and Children’s Libraries. Its adult-strength weight rating combined with junior-sized dimensions makes it a versatile asset for various Key Stage 2 settings.

Key Features

  • Anti-Tilt Frame – Angled rear legs make it physically difficult for students to tip the chair backwards, reducing accidents.
  • Size 3 (6-8 Years) – Standard ergonomic size (350mm seat height) for the middle primary age group.
  • 15-Year Warranty – Industry-leading guarantee covering all structural welds and shell integrity for total peace of mind.
  • Grey Powder-Coated Steel – High-grade metal frame that is scratch-resistant and exceptionally durable.
  • Stackable Design – Efficient vertical stacking allows for easy room clearing and floor maintenance.
  • Ribbed Polypropylene – High-impact shell that is resistant to ink, chemicals, and the rigours of daily school life.
  • Tamper-Proof Fixings – Secured shell-to-frame fasteners for maximum safety and longevity.
  • 100% Recyclable – Polypropylene and steel components can be fully repurposed at the end of the product life.
Warranty icon
15-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery
UK manufactured icon
Made in UK

Cobolt Service & Ethos: Supporting School Estates

  • 50 Years of Expertise: We understand the specific durability needs of high-traffic educational environments.
  • Free Delivery (UK Mainland): We handle all logistics costs for classroom refits to keep your project on budget.
  • Sustainability Partners: 100% recyclable components help you meet your school's environmental and waste targets.
  • Reliable Support: Our UK-based team assists with everything from single classroom replacements to full campus tenders.

Safety & Warranty

Built for Safety. Backed for Reliability.

  • The Anti-Tilt frame geometry is specifically engineered to counteract the leverage needed to swing on the chair, protecting both the student and the chair's welds.
  • Compliance with BS EN1729 Part 1 ensures the seat height (350mm) and depth are ergonomically correct for users aged 6-8, preventing long-term spinal issues.
  • The Waterfall Seat Front reduces pressure on the back of the thighs, ensuring blood flow is not restricted during long periods of seated study.
  • Heavy-duty Tamper-Proof fasteners keep the shell securely attached to the frame, ensuring safety in busy primary classrooms.
  • We offer an industry-leading 15-year manufacturer's guarantee. This covers the structural welds of the frame and the integrity of the shell, providing long-term value for school managers.

Specification Dimensions

The Size 3 White Anti-Tilt Chair offers certified ergonomic support with safety-first anti-tilt engineering. These specifications detail the materials and dimensions that make it the responsible choice for junior education.

Age Group
6-8 Years (Size 3)
Material
Recyclable Polypropylene
Guarantee
15 Years
Specification
Details
Purpose / Benefit
Seat Height
350mm
Standard Size 3 for ages 6-8
Seat Dimensions
370mm (W) x 300mm (D)
Ergonomically sized for KS2 juniors
Total Dimensions
670mm(H) x 410mm(W) x 470mm(D)
Balanced classroom profile
Unit Weight
3.5kg
Lightweight for easy stacking and moving
Frame Material
Powder Coated Steel (Grey)
Durable and scratch-resistant
Base Style
Angled Legs (Anti-Tilt)
Proactive tipping prevention
Stacking Ability
Yes
Efficient space clearing
Sustainability
100% Recyclable
Environmentally responsible disposal
Compliance
BS EN1729 Parts 1 & 2
Certified for education settings

Delivery & Returns

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 5 Working Days service.

For all other locations, please email help@coboltfurniture.co.uk for a quote.


  • Made to Order: Many of our products are manufactured specifically for your order. Because of this, returns depend on the product specifics and require prior permission from Cobolt Furniture.
  • Cancellations: We always endeavour to reduce cancellation costs. However, please note a partial or entire charge may be levied to cover material costs and administrative fees if a made-to-order line is cancelled.

Product FAQs

FAQs: Leading Primary School Seating Solutions

Q: Is a "Size 3" chair correct for my Key Stage 2 students?

A: Size 3 is specifically dimensioned for children aged 6 to 8 years. With a 350mm seat height, it is the industry standard for Year 3 and Year 4 classrooms, ensuring that students’ feet are flat on the floor to promote spinal health.

Q: How does the "Anti-Tilt" feature help with classroom management?

A: Students in this age group can be very active. The angled rear frame changes the leverage point, making it mechanically difficult for the chair to tip backwards. This proactively reduces classroom distractions and accidents.

Q: Is the white colour difficult to keep clean in a school?

A: No. The high-grade polypropylene shell is non-porous and resistant to ink and common school chemicals. It can be wiped clean instantly with standard anti-bacterial sprays, ensuring your classroom maintains a high level of hygiene.

Q: Are these chairs easy for cleaning staff to manage?

A: Yes. Weighing only 3.5kg, they are very lightweight. They are also stackable, allowing cleaning staff to clear floor space efficiently after the school day ends.

Q: Does this chair comply with BS EN1729 standards?

A: Yes. This chair is fully compliant with BS EN1729 Parts 1 & 2. Part 1 covers the ergonomic dimensions required to promote good posture, while Part 2 certifies the structural strength and stability needed for heavy-duty institutional use.

Q: Is it really 100% recyclable?

A: Yes. At the end of its life, the chair can be separated into its plastic and steel components, both of which are fully recyclable. This supports your school’s commitment to environmental sustainability.

Q: What does the 15-year warranty cover?

A: The warranty covers any structural failure in the frame welds or the integrity of the plastic shell due to manufacturing defects. This provides your primary school with exceptional long-term budget security.

Q: Why choose Cobolt Furniture for junior school seating?

A: With over 50 years of heritage, we are a trusted partner to UK education providers. We offer Free UK Mainland Delivery, expert advice, and products designed specifically for the rigours of school life.

Q: Are the shells secured to prevent vandalism?

A: We utilise tamper-proof fasteners to ensure the polypropylene shell remains permanently and safely attached to the steel frame, preventing students from dismantling the unit.

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