Vibrant blue polypropylene school chair with grey anti-tilt safety legs, designed for heavy-duty use in primary and secondary classrooms.
Stackable blue anti-tilt student chair featuring a grey powder-coated frame and ergonomic seat shell for classroom postural support.
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 Blue Anti-Tilt Junior Seating

The Cobolt Blue Size 3 Chair delivers a durable and ergonomically sound foundation for students aged 6 to 8 years. Dispatched with Free UK Mainland Delivery, it is built to survive the high-frequency cleaning and constant movement required in bustling junior environments.

Junior Posture & Sustainability

  • KS2 Ergonomic Standards: Adhering to Size 3 EN1729 regulations, the 350mm seat height ensures junior students maintain a healthy lumbar position while keeping feet firmly planted.
  • Eco-Responsible Lifecycle: Constructed from 100% recyclable polypropylene and steel, this chair supports your institution's carbon reduction targets through domestic production.
  • Circulation Support: The downward-curved front edge removes pressure points behind the knees, preventing restlessness during intensive tabletop learning.

Classroom Resilience

  • High-Impact Shell: The non-porous blue polypropylene resists staining from school supplies and allows for instant sanitisation with standard cleaners.
  • Vandal-Resistant Fixings: We utilize industrial-grade, tamperproof fasteners to lock the shell to the grey steel frame, ensuring a permanent, safe connection.
  • Space-Saving Storage: These units are designed for efficient vertical stacking, allowing cleaning staff to clear floor space effortlessly after the school day ends.

The Cobolt Standard

  • 50 Years of Manufacturing Heritage: As a trusted public sector partner for half a century, we deliver furniture that meets and exceeds the most rigorous UK educational benchmarks.
  • Free UK Mainland Delivery: We provide transparent, all-inclusive pricing by absorbing all shipping costs for your primary school refit project.
  • Fifteen-Year Asset Security: Our extensive structural warranty provides unparalleled budget protection, ensuring your furniture remains a reliable, one-time investment.

Where is this Size 3 Blue Anti-Tilt Chair utilised?

The Blue Size 3 School Chair is the primary specification for Year 3 and Year 4 Classrooms, Junior Libraries, Breakfast Clubs, and Community Learning Hubs. Its adult-strength frame combined with junior-specific dimensions makes it an incredibly versatile asset for diverse educational settings.

Key Features

  • Anti-Tilt Safety Frame – The angled rear legs proactively inhibit students from rocking back, reducing junior classroom accidents.
  • Size 3 (6-8 Years) – Precision-engineered 350mm seat height for the middle primary age demographic.
  • 15-Year Structural Guarantee – Industry-leading warranty covering both frame welds and plastic shell integrity.
  • 3.5kg Unit Weight – Robust construction that remains manageable for staff to move and stack.
  • Slate Grey Powder-Coated Steel – A metallic finish that resists scratches, scuffs, and heavy daily wear.
  • Stackable Architecture – Efficient vertical stacking allows for easy classroom reconfiguration and clearing.
  • High-Impact Polypropylene – The shell is resistant to ink, school chemicals, and the high-traffic school environment.
  • Tamperproof Shell Fasteners – Secured fixings ensure the seat remains permanently and safely attached.
Warranty icon
15-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery
UK manufactured icon
Made in UK

Cobolt Service: Partnering with UK Junior Schools

  • 50 Years of Expertise: We understand the specific durability and hygiene needs of UK primary education.
  • Free UK Mainland Delivery: We manage the delivery of school orders at no extra cost, ensuring your project remains within allocated budgets.
  • Sustainability Goals: Our domestic manufacturing and 100% recyclable materials support your institution's carbon reduction targets.
  • Reliable Support: Our UK-based team is available to help bursars and estates managers select the correct sizing for their specific demographics.

Junior Safety. Guaranteed Reliability.

  • The Anti-Tilt rear geometry is a crucial design feature for active learners, shifting the balance point to proactively prevent dangerous "chair swinging" habits.
  • Strict adherence to BS EN1729 Compliance ensures the seat height (350mm) is perfectly scaled for the 6-8 year old stature, promoting healthy spinal habits.
  • The Waterfall Seat Front eliminates hard edges behind the knees, maintaining healthy circulation during extended seated learning or tabletop activities.
  • Industrial-grade Tamperproof fasteners provide a permanent, rattle-free connection between the polypropylene seat and the powder-coated grey legs.
  • Every unit is backed by a 15-year manufacturer's guarantee, covering structural frame integrity and shell defects for long-term reliability.

The Size 3 Blue Anti-Tilt Chair combines certified junior ergonomics with a heavy-duty safety frame. These specifications detail the materials and dimensions that make it the responsible choice for Key Stage 2 classrooms.

Target Ages
6-8 Years (Size 3)
Material
100% Polypropylene
Guarantee
15 Years
Specification
Details
Purpose / Benefit
Seat Height
350mm
Standard Size 3 for Year 3 & 4
Seat Dimensions
370mm (W) x 300mm (D)
Optimal surface area for junior students
Total Dimensions
670mm(H) x 410mm(W) x 470mm(D)
Balanced classroom footprint
Unit Weight
3.5kg
Robust yet easy to move for staff
Frame Material
Powder Coated Grey Steel
Vandal and scratch resistant finish
Compliance
BS EN1729 Compliant
Certified ergonomic and structural safety
Origin
Manufactured in UK
Quality assurance and low carbon impact

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: Junior Seating Specialist Advice

Q: Is a "Size 3" chair correct for my junior students?

A: Size 3 (350mm seat height) is the ergonomic standard for children aged 6 to 8 years. It ensures that junior students can sit with a flat-footed stance, essential for developing healthy sitting habits during their time in Key Stage 2.

Q: How does the Anti-Tilt feature prevent falls in the classroom?

A: Junior students are often active and prone to rocking on their chairs. The angled rear frame shifts the leverage point further back, making it mechanically difficult for the chair to tip over backwards even if a student leans back.

Q: Is the Royal Blue shell resistant to school supplies?

A: Yes. The high-grade polypropylene is non-porous. Spills from ink, juice, or paints cannot penetrate the surface and can be wiped away easily without leaving residues or fading the vivid blue colour.

Q: Can adults safely sit on these Size 3 chairs?

A: Yes. Despite being dimensioned for children, the powder-coated steel frame is rated for a massive 125kg. This makes it perfectly safe for teaching staff to sit briefly during group work without structural risk.

Q: Are the seats tamper-proof to prevent interference?

A: Absolutely. We use industrial-grade tamperproof fasteners to secure the shell to the grey steel legs. This ensures students cannot loosen the fixings and that the chairs remain a permanent, safe asset in your school.

Q: How easy are these chairs to store during cleaning?

A: These chairs are designed for vertical stacking, allowing cleaning staff to clear floor space efficiently after the school day ends. Their lightweight 3.5kg build makes them easy to move for reconfiguration.

Q: Does this chair comply with fire and safety regulations?

A: Yes, it is fully compliant with BS EN1729 Parts 1 & 2, which are the specific standards for UK school furniture regarding ergonomics, strength, and structural durability.

Q: Why purchase from Cobolt Furniture?

A: With 50 years of manufacturing expertise, we are a trusted partner to UK education. We offer Free UK Mainland Delivery, expert product knowledge, and furniture built specifically for the demands of the UK curriculum.

Overview

Product Overview: Size 3 Blue Anti-Tilt Junior Seating

The Cobolt Blue Size 3 Chair delivers a durable and ergonomically sound foundation for students aged 6 to 8 years. Dispatched with Free UK Mainland Delivery, it is built to survive the high-frequency cleaning and constant movement required in bustling junior environments.

Junior Posture & Sustainability

  • KS2 Ergonomic Standards: Adhering to Size 3 EN1729 regulations, the 350mm seat height ensures junior students maintain a healthy lumbar position while keeping feet firmly planted.
  • Eco-Responsible Lifecycle: Constructed from 100% recyclable polypropylene and steel, this chair supports your institution's carbon reduction targets through domestic production.
  • Circulation Support: The downward-curved front edge removes pressure points behind the knees, preventing restlessness during intensive tabletop learning.

Classroom Resilience

  • High-Impact Shell: The non-porous blue polypropylene resists staining from school supplies and allows for instant sanitisation with standard cleaners.
  • Vandal-Resistant Fixings: We utilize industrial-grade, tamperproof fasteners to lock the shell to the grey steel frame, ensuring a permanent, safe connection.
  • Space-Saving Storage: These units are designed for efficient vertical stacking, allowing cleaning staff to clear floor space effortlessly after the school day ends.

The Cobolt Standard

  • 50 Years of Manufacturing Heritage: As a trusted public sector partner for half a century, we deliver furniture that meets and exceeds the most rigorous UK educational benchmarks.
  • Free UK Mainland Delivery: We provide transparent, all-inclusive pricing by absorbing all shipping costs for your primary school refit project.
  • Fifteen-Year Asset Security: Our extensive structural warranty provides unparalleled budget protection, ensuring your furniture remains a reliable, one-time investment.

Features & Benefits

Where is this Size 3 Blue Anti-Tilt Chair utilised?

The Blue Size 3 School Chair is the primary specification for Year 3 and Year 4 Classrooms, Junior Libraries, Breakfast Clubs, and Community Learning Hubs. Its adult-strength frame combined with junior-specific dimensions makes it an incredibly versatile asset for diverse educational settings.

Key Features

  • Anti-Tilt Safety Frame – The angled rear legs proactively inhibit students from rocking back, reducing junior classroom accidents.
  • Size 3 (6-8 Years) – Precision-engineered 350mm seat height for the middle primary age demographic.
  • 15-Year Structural Guarantee – Industry-leading warranty covering both frame welds and plastic shell integrity.
  • 3.5kg Unit Weight – Robust construction that remains manageable for staff to move and stack.
  • Slate Grey Powder-Coated Steel – A metallic finish that resists scratches, scuffs, and heavy daily wear.
  • Stackable Architecture – Efficient vertical stacking allows for easy classroom reconfiguration and clearing.
  • High-Impact Polypropylene – The shell is resistant to ink, school chemicals, and the high-traffic school environment.
  • Tamperproof Shell Fasteners – Secured fixings ensure the seat remains permanently and safely attached.
Warranty icon
15-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery
UK manufactured icon
Made in UK

Cobolt Service: Partnering with UK Junior Schools

  • 50 Years of Expertise: We understand the specific durability and hygiene needs of UK primary education.
  • Free UK Mainland Delivery: We manage the delivery of school orders at no extra cost, ensuring your project remains within allocated budgets.
  • Sustainability Goals: Our domestic manufacturing and 100% recyclable materials support your institution's carbon reduction targets.
  • Reliable Support: Our UK-based team is available to help bursars and estates managers select the correct sizing for their specific demographics.

Safety & Warranty

Junior Safety. Guaranteed Reliability.

  • The Anti-Tilt rear geometry is a crucial design feature for active learners, shifting the balance point to proactively prevent dangerous "chair swinging" habits.
  • Strict adherence to BS EN1729 Compliance ensures the seat height (350mm) is perfectly scaled for the 6-8 year old stature, promoting healthy spinal habits.
  • The Waterfall Seat Front eliminates hard edges behind the knees, maintaining healthy circulation during extended seated learning or tabletop activities.
  • Industrial-grade Tamperproof fasteners provide a permanent, rattle-free connection between the polypropylene seat and the powder-coated grey legs.
  • Every unit is backed by a 15-year manufacturer's guarantee, covering structural frame integrity and shell defects for long-term reliability.

Specification Dimensions

The Size 3 Blue Anti-Tilt Chair combines certified junior ergonomics with a heavy-duty safety frame. These specifications detail the materials and dimensions that make it the responsible choice for Key Stage 2 classrooms.

Target Ages
6-8 Years (Size 3)
Material
100% Polypropylene
Guarantee
15 Years
Specification
Details
Purpose / Benefit
Seat Height
350mm
Standard Size 3 for Year 3 & 4
Seat Dimensions
370mm (W) x 300mm (D)
Optimal surface area for junior students
Total Dimensions
670mm(H) x 410mm(W) x 470mm(D)
Balanced classroom footprint
Unit Weight
3.5kg
Robust yet easy to move for staff
Frame Material
Powder Coated Grey Steel
Vandal and scratch resistant finish
Compliance
BS EN1729 Compliant
Certified ergonomic and structural safety
Origin
Manufactured in UK
Quality assurance and low carbon impact

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: Junior Seating Specialist Advice

Q: Is a "Size 3" chair correct for my junior students?

A: Size 3 (350mm seat height) is the ergonomic standard for children aged 6 to 8 years. It ensures that junior students can sit with a flat-footed stance, essential for developing healthy sitting habits during their time in Key Stage 2.

Q: How does the Anti-Tilt feature prevent falls in the classroom?

A: Junior students are often active and prone to rocking on their chairs. The angled rear frame shifts the leverage point further back, making it mechanically difficult for the chair to tip over backwards even if a student leans back.

Q: Is the Royal Blue shell resistant to school supplies?

A: Yes. The high-grade polypropylene is non-porous. Spills from ink, juice, or paints cannot penetrate the surface and can be wiped away easily without leaving residues or fading the vivid blue colour.

Q: Can adults safely sit on these Size 3 chairs?

A: Yes. Despite being dimensioned for children, the powder-coated steel frame is rated for a massive 125kg. This makes it perfectly safe for teaching staff to sit briefly during group work without structural risk.

Q: Are the seats tamper-proof to prevent interference?

A: Absolutely. We use industrial-grade tamperproof fasteners to secure the shell to the grey steel legs. This ensures students cannot loosen the fixings and that the chairs remain a permanent, safe asset in your school.

Q: How easy are these chairs to store during cleaning?

A: These chairs are designed for vertical stacking, allowing cleaning staff to clear floor space efficiently after the school day ends. Their lightweight 3.5kg build makes them easy to move for reconfiguration.

Q: Does this chair comply with fire and safety regulations?

A: Yes, it is fully compliant with BS EN1729 Parts 1 & 2, which are the specific standards for UK school furniture regarding ergonomics, strength, and structural durability.

Q: Why purchase from Cobolt Furniture?

A: With 50 years of manufacturing expertise, we are a trusted partner to UK education. We offer Free UK Mainland Delivery, expert product knowledge, and furniture built specifically for the demands of the UK curriculum.

Blue Anti-Tilt Junior School Chair - Size 3 - 6-8 Years - Grey Legs

Product code: CH43BL
Incorporate a calming, professional tone into your middle-primary learning spaces with the Cobolt Royal Blue Polypropylene Anti-Tilt Chair (Size 3 / 6...

Inc VAT

Exc VAT

£52.00

£43.33

Colours - Blue
Age - 6-8 Years

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In Stock - UK Dispatch

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UK Customer Support Expert guidance. Real people.

Trusted UK Supplier 50 years. Established. Reliable.

Free UK Mainland Delivery Clear. Upfront pricing.

Overview

Features

Safety & Warranty

Specifications & Dimensions

Delivery & Returns

Product FAQs

Product Overview: Size 3 Blue Anti-Tilt Junior Seating

The Cobolt Blue Size 3 Chair delivers a durable and ergonomically sound foundation for students aged 6 to 8 years. Dispatched with Free UK Mainland Delivery, it is built to survive the high-frequency cleaning and constant movement required in bustling junior environments.

Junior Posture & Sustainability

  • KS2 Ergonomic Standards: Adhering to Size 3 EN1729 regulations, the 350mm seat height ensures junior students maintain a healthy lumbar position while keeping feet firmly planted.
  • Eco-Responsible Lifecycle: Constructed from 100% recyclable polypropylene and steel, this chair supports your institution's carbon reduction targets through domestic production.
  • Circulation Support: The downward-curved front edge removes pressure points behind the knees, preventing restlessness during intensive tabletop learning.

Classroom Resilience

  • High-Impact Shell: The non-porous blue polypropylene resists staining from school supplies and allows for instant sanitisation with standard cleaners.
  • Vandal-Resistant Fixings: We utilize industrial-grade, tamperproof fasteners to lock the shell to the grey steel frame, ensuring a permanent, safe connection.
  • Space-Saving Storage: These units are designed for efficient vertical stacking, allowing cleaning staff to clear floor space effortlessly after the school day ends.

The Cobolt Standard

  • 50 Years of Manufacturing Heritage: As a trusted public sector partner for half a century, we deliver furniture that meets and exceeds the most rigorous UK educational benchmarks.
  • Free UK Mainland Delivery: We provide transparent, all-inclusive pricing by absorbing all shipping costs for your primary school refit project.
  • Fifteen-Year Asset Security: Our extensive structural warranty provides unparalleled budget protection, ensuring your furniture remains a reliable, one-time investment.

Where is this Size 3 Blue Anti-Tilt Chair utilised?

The Blue Size 3 School Chair is the primary specification for Year 3 and Year 4 Classrooms, Junior Libraries, Breakfast Clubs, and Community Learning Hubs. Its adult-strength frame combined with junior-specific dimensions makes it an incredibly versatile asset for diverse educational settings.

Key Features

  • Anti-Tilt Safety Frame – The angled rear legs proactively inhibit students from rocking back, reducing junior classroom accidents.
  • Size 3 (6-8 Years) – Precision-engineered 350mm seat height for the middle primary age demographic.
  • 15-Year Structural Guarantee – Industry-leading warranty covering both frame welds and plastic shell integrity.
  • 3.5kg Unit Weight – Robust construction that remains manageable for staff to move and stack.
  • Slate Grey Powder-Coated Steel – A metallic finish that resists scratches, scuffs, and heavy daily wear.
  • Stackable Architecture – Efficient vertical stacking allows for easy classroom reconfiguration and clearing.
  • High-Impact Polypropylene – The shell is resistant to ink, school chemicals, and the high-traffic school environment.
  • Tamperproof Shell Fasteners – Secured fixings ensure the seat remains permanently and safely attached.
Warranty icon
15-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery
UK manufactured icon
Made in UK

Cobolt Service: Partnering with UK Junior Schools

  • 50 Years of Expertise: We understand the specific durability and hygiene needs of UK primary education.
  • Free UK Mainland Delivery: We manage the delivery of school orders at no extra cost, ensuring your project remains within allocated budgets.
  • Sustainability Goals: Our domestic manufacturing and 100% recyclable materials support your institution's carbon reduction targets.
  • Reliable Support: Our UK-based team is available to help bursars and estates managers select the correct sizing for their specific demographics.

Junior Safety. Guaranteed Reliability.

  • The Anti-Tilt rear geometry is a crucial design feature for active learners, shifting the balance point to proactively prevent dangerous "chair swinging" habits.
  • Strict adherence to BS EN1729 Compliance ensures the seat height (350mm) is perfectly scaled for the 6-8 year old stature, promoting healthy spinal habits.
  • The Waterfall Seat Front eliminates hard edges behind the knees, maintaining healthy circulation during extended seated learning or tabletop activities.
  • Industrial-grade Tamperproof fasteners provide a permanent, rattle-free connection between the polypropylene seat and the powder-coated grey legs.
  • Every unit is backed by a 15-year manufacturer's guarantee, covering structural frame integrity and shell defects for long-term reliability.

The Size 3 Blue Anti-Tilt Chair combines certified junior ergonomics with a heavy-duty safety frame. These specifications detail the materials and dimensions that make it the responsible choice for Key Stage 2 classrooms.

Target Ages
6-8 Years (Size 3)
Material
100% Polypropylene
Guarantee
15 Years
Specification
Details
Purpose / Benefit
Seat Height
350mm
Standard Size 3 for Year 3 & 4
Seat Dimensions
370mm (W) x 300mm (D)
Optimal surface area for junior students
Total Dimensions
670mm(H) x 410mm(W) x 470mm(D)
Balanced classroom footprint
Unit Weight
3.5kg
Robust yet easy to move for staff
Frame Material
Powder Coated Grey Steel
Vandal and scratch resistant finish
Compliance
BS EN1729 Compliant
Certified ergonomic and structural safety
Origin
Manufactured in UK
Quality assurance and low carbon impact

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: Junior Seating Specialist Advice

Q: Is a "Size 3" chair correct for my junior students?

A: Size 3 (350mm seat height) is the ergonomic standard for children aged 6 to 8 years. It ensures that junior students can sit with a flat-footed stance, essential for developing healthy sitting habits during their time in Key Stage 2.

Q: How does the Anti-Tilt feature prevent falls in the classroom?

A: Junior students are often active and prone to rocking on their chairs. The angled rear frame shifts the leverage point further back, making it mechanically difficult for the chair to tip over backwards even if a student leans back.

Q: Is the Royal Blue shell resistant to school supplies?

A: Yes. The high-grade polypropylene is non-porous. Spills from ink, juice, or paints cannot penetrate the surface and can be wiped away easily without leaving residues or fading the vivid blue colour.

Q: Can adults safely sit on these Size 3 chairs?

A: Yes. Despite being dimensioned for children, the powder-coated steel frame is rated for a massive 125kg. This makes it perfectly safe for teaching staff to sit briefly during group work without structural risk.

Q: Are the seats tamper-proof to prevent interference?

A: Absolutely. We use industrial-grade tamperproof fasteners to secure the shell to the grey steel legs. This ensures students cannot loosen the fixings and that the chairs remain a permanent, safe asset in your school.

Q: How easy are these chairs to store during cleaning?

A: These chairs are designed for vertical stacking, allowing cleaning staff to clear floor space efficiently after the school day ends. Their lightweight 3.5kg build makes them easy to move for reconfiguration.

Q: Does this chair comply with fire and safety regulations?

A: Yes, it is fully compliant with BS EN1729 Parts 1 & 2, which are the specific standards for UK school furniture regarding ergonomics, strength, and structural durability.

Q: Why purchase from Cobolt Furniture?

A: With 50 years of manufacturing expertise, we are a trusted partner to UK education. We offer Free UK Mainland Delivery, expert product knowledge, and furniture built specifically for the demands of the UK curriculum.

Overview

Product Overview: Size 3 Blue Anti-Tilt Junior Seating

The Cobolt Blue Size 3 Chair delivers a durable and ergonomically sound foundation for students aged 6 to 8 years. Dispatched with Free UK Mainland Delivery, it is built to survive the high-frequency cleaning and constant movement required in bustling junior environments.

Junior Posture & Sustainability

  • KS2 Ergonomic Standards: Adhering to Size 3 EN1729 regulations, the 350mm seat height ensures junior students maintain a healthy lumbar position while keeping feet firmly planted.
  • Eco-Responsible Lifecycle: Constructed from 100% recyclable polypropylene and steel, this chair supports your institution's carbon reduction targets through domestic production.
  • Circulation Support: The downward-curved front edge removes pressure points behind the knees, preventing restlessness during intensive tabletop learning.

Classroom Resilience

  • High-Impact Shell: The non-porous blue polypropylene resists staining from school supplies and allows for instant sanitisation with standard cleaners.
  • Vandal-Resistant Fixings: We utilize industrial-grade, tamperproof fasteners to lock the shell to the grey steel frame, ensuring a permanent, safe connection.
  • Space-Saving Storage: These units are designed for efficient vertical stacking, allowing cleaning staff to clear floor space effortlessly after the school day ends.

The Cobolt Standard

  • 50 Years of Manufacturing Heritage: As a trusted public sector partner for half a century, we deliver furniture that meets and exceeds the most rigorous UK educational benchmarks.
  • Free UK Mainland Delivery: We provide transparent, all-inclusive pricing by absorbing all shipping costs for your primary school refit project.
  • Fifteen-Year Asset Security: Our extensive structural warranty provides unparalleled budget protection, ensuring your furniture remains a reliable, one-time investment.

Features & Benefits

Where is this Size 3 Blue Anti-Tilt Chair utilised?

The Blue Size 3 School Chair is the primary specification for Year 3 and Year 4 Classrooms, Junior Libraries, Breakfast Clubs, and Community Learning Hubs. Its adult-strength frame combined with junior-specific dimensions makes it an incredibly versatile asset for diverse educational settings.

Key Features

  • Anti-Tilt Safety Frame – The angled rear legs proactively inhibit students from rocking back, reducing junior classroom accidents.
  • Size 3 (6-8 Years) – Precision-engineered 350mm seat height for the middle primary age demographic.
  • 15-Year Structural Guarantee – Industry-leading warranty covering both frame welds and plastic shell integrity.
  • 3.5kg Unit Weight – Robust construction that remains manageable for staff to move and stack.
  • Slate Grey Powder-Coated Steel – A metallic finish that resists scratches, scuffs, and heavy daily wear.
  • Stackable Architecture – Efficient vertical stacking allows for easy classroom reconfiguration and clearing.
  • High-Impact Polypropylene – The shell is resistant to ink, school chemicals, and the high-traffic school environment.
  • Tamperproof Shell Fasteners – Secured fixings ensure the seat remains permanently and safely attached.
Warranty icon
15-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery
UK manufactured icon
Made in UK

Cobolt Service: Partnering with UK Junior Schools

  • 50 Years of Expertise: We understand the specific durability and hygiene needs of UK primary education.
  • Free UK Mainland Delivery: We manage the delivery of school orders at no extra cost, ensuring your project remains within allocated budgets.
  • Sustainability Goals: Our domestic manufacturing and 100% recyclable materials support your institution's carbon reduction targets.
  • Reliable Support: Our UK-based team is available to help bursars and estates managers select the correct sizing for their specific demographics.

Safety & Warranty

Junior Safety. Guaranteed Reliability.

  • The Anti-Tilt rear geometry is a crucial design feature for active learners, shifting the balance point to proactively prevent dangerous "chair swinging" habits.
  • Strict adherence to BS EN1729 Compliance ensures the seat height (350mm) is perfectly scaled for the 6-8 year old stature, promoting healthy spinal habits.
  • The Waterfall Seat Front eliminates hard edges behind the knees, maintaining healthy circulation during extended seated learning or tabletop activities.
  • Industrial-grade Tamperproof fasteners provide a permanent, rattle-free connection between the polypropylene seat and the powder-coated grey legs.
  • Every unit is backed by a 15-year manufacturer's guarantee, covering structural frame integrity and shell defects for long-term reliability.

Specification Dimensions

The Size 3 Blue Anti-Tilt Chair combines certified junior ergonomics with a heavy-duty safety frame. These specifications detail the materials and dimensions that make it the responsible choice for Key Stage 2 classrooms.

Target Ages
6-8 Years (Size 3)
Material
100% Polypropylene
Guarantee
15 Years
Specification
Details
Purpose / Benefit
Seat Height
350mm
Standard Size 3 for Year 3 & 4
Seat Dimensions
370mm (W) x 300mm (D)
Optimal surface area for junior students
Total Dimensions
670mm(H) x 410mm(W) x 470mm(D)
Balanced classroom footprint
Unit Weight
3.5kg
Robust yet easy to move for staff
Frame Material
Powder Coated Grey Steel
Vandal and scratch resistant finish
Compliance
BS EN1729 Compliant
Certified ergonomic and structural safety
Origin
Manufactured in UK
Quality assurance and low carbon impact

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: Junior Seating Specialist Advice

Q: Is a "Size 3" chair correct for my junior students?

A: Size 3 (350mm seat height) is the ergonomic standard for children aged 6 to 8 years. It ensures that junior students can sit with a flat-footed stance, essential for developing healthy sitting habits during their time in Key Stage 2.

Q: How does the Anti-Tilt feature prevent falls in the classroom?

A: Junior students are often active and prone to rocking on their chairs. The angled rear frame shifts the leverage point further back, making it mechanically difficult for the chair to tip over backwards even if a student leans back.

Q: Is the Royal Blue shell resistant to school supplies?

A: Yes. The high-grade polypropylene is non-porous. Spills from ink, juice, or paints cannot penetrate the surface and can be wiped away easily without leaving residues or fading the vivid blue colour.

Q: Can adults safely sit on these Size 3 chairs?

A: Yes. Despite being dimensioned for children, the powder-coated steel frame is rated for a massive 125kg. This makes it perfectly safe for teaching staff to sit briefly during group work without structural risk.

Q: Are the seats tamper-proof to prevent interference?

A: Absolutely. We use industrial-grade tamperproof fasteners to secure the shell to the grey steel legs. This ensures students cannot loosen the fixings and that the chairs remain a permanent, safe asset in your school.

Q: How easy are these chairs to store during cleaning?

A: These chairs are designed for vertical stacking, allowing cleaning staff to clear floor space efficiently after the school day ends. Their lightweight 3.5kg build makes them easy to move for reconfiguration.

Q: Does this chair comply with fire and safety regulations?

A: Yes, it is fully compliant with BS EN1729 Parts 1 & 2, which are the specific standards for UK school furniture regarding ergonomics, strength, and structural durability.

Q: Why purchase from Cobolt Furniture?

A: With 50 years of manufacturing expertise, we are a trusted partner to UK education. We offer Free UK Mainland Delivery, expert product knowledge, and furniture built specifically for the demands of the UK curriculum.

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