A deep purple academy student chair with a scuff-resistant plastic seat and integrated tilt-control rear legs for enhanced classroom safety.
Plum-coloured educational seating featuring a waterfall seat front for circulation and a robust grey metalwork base designed for school stability.
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 Purple Anti-Tilt Junior Seating

The Cobolt Purple Size 3 Chair provides a sturdy and ergonomically sound foundation for students transitioning through the junior age group. Dispatched with Free UK Mainland Delivery, it is built to survive the high-frequency cleaning and heavy daily use required in modern Year 3 and Year 4 classrooms.

Junior Posture & Sustainability

  • Ergonomic Development: 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 its domestic manufacturing.
  • Enhanced Blood Flow: The downward-curved front edge removes pressure points behind the knees, preventing restlessness during tabletop learning sessions.

Institutional Resilience

  • High-Impact Shell: The non-porous violet shell resists staining from ink and school supplies, allowing 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 vertical stacking, allowing cleaning staff to clear floor space efficiently after the school day ends.

The Cobolt Standard

  • 50 Years of Manufacturing Excellence: For half a century, we have remained a trusted partner to the UK public sector, delivering furniture that leads the market in safety and compliance.
  • Complimentary Mainland Transit: Every purchase includes Free UK Mainland Delivery as standard, allowing bursars to calculate exact project costs without hidden shipping variables.
  • Fifteen-Year Financial Shield: Our extensive structural warranty provides unparalleled budget protection, ensuring your furniture remains a reliable, one-time investment.

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

The Purple Size 3 Junior Chair is the primary specification for Year 3 and Year 4 Classrooms, Junior Libraries, Creative Arts Zones, and Community Study Hubs. Its adult-strength frame combined with junior-specific proportions makes it a versatile solution 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 the welded steel frame and the high-impact shell.
  • 3.5kg Unit Weight – Robust construction that remains manageable for staff to move and stack.
  • Slate Grey Powder-Coating – A high-quality metallic finish that resists scratches, scuffs, and daily wear.
  • Stackable Architecture – Efficient vertical stacking allows for easy classroom reconfiguration and floor clearing.
  • High-Impact Polypropylene – The shell is resistant to ink, school chemicals, and staining, allowing for instant sanitisation.
  • Tamperproof Shell Fasteners – Secured fixings ensure the seat remains permanently and safely attached to the frame.
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 high-traffic junior school environments.
  • Free UK Mainland Delivery: We manage the delivery of institutional refits at no extra cost, keeping your project 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 Engineering. Guaranteed Performance.

  • The Anti-Tilt rear geometry is a crucial design feature for energetic 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 institutional use.

The Size 3 Purple 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
Institutional Benefit
Seat Height
350mm
Standard Size 3 for Year 3 & 4
Seat Dimensions
370mm (W) x 300mm (D)
Optimal thigh support 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
Weight Capacity
125kg (19.6 stone)
Superior structural resilience
Compliance
BS EN1729 Compliant
Certified ergonomic and structural safety
Sustainability
100% Recyclable
Eco-friendly product lifecycle

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 Year 3 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 maintaining correct sitting habits during their time in Key Stage 2.

Q: How does the "Anti-Tilt" mechanism prevent falls?

A: The rear legs are set at a specific outward angle. This shifts the leverage point further back, making it mechanically difficult for the chair to tip backwards even if a student leans back. This proactively prevents falls and related junior injuries.

Q: Is the Deep Purple pigment resistant to staining?

A: Yes. The high-grade polypropylene shell is non-porous. Juice spills, ink, or paints cannot penetrate the surface and can be wiped away easily without leaving residues or fading the vivid amethyst 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 Purple Anti-Tilt Junior Seating

The Cobolt Purple Size 3 Chair provides a sturdy and ergonomically sound foundation for students transitioning through the junior age group. Dispatched with Free UK Mainland Delivery, it is built to survive the high-frequency cleaning and heavy daily use required in modern Year 3 and Year 4 classrooms.

Junior Posture & Sustainability

  • Ergonomic Development: 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 its domestic manufacturing.
  • Enhanced Blood Flow: The downward-curved front edge removes pressure points behind the knees, preventing restlessness during tabletop learning sessions.

Institutional Resilience

  • High-Impact Shell: The non-porous violet shell resists staining from ink and school supplies, allowing 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 vertical stacking, allowing cleaning staff to clear floor space efficiently after the school day ends.

The Cobolt Standard

  • 50 Years of Manufacturing Excellence: For half a century, we have remained a trusted partner to the UK public sector, delivering furniture that leads the market in safety and compliance.
  • Complimentary Mainland Transit: Every purchase includes Free UK Mainland Delivery as standard, allowing bursars to calculate exact project costs without hidden shipping variables.
  • Fifteen-Year Financial Shield: Our extensive structural warranty provides unparalleled budget protection, ensuring your furniture remains a reliable, one-time investment.

Features & Benefits

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

The Purple Size 3 Junior Chair is the primary specification for Year 3 and Year 4 Classrooms, Junior Libraries, Creative Arts Zones, and Community Study Hubs. Its adult-strength frame combined with junior-specific proportions makes it a versatile solution 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 the welded steel frame and the high-impact shell.
  • 3.5kg Unit Weight – Robust construction that remains manageable for staff to move and stack.
  • Slate Grey Powder-Coating – A high-quality metallic finish that resists scratches, scuffs, and daily wear.
  • Stackable Architecture – Efficient vertical stacking allows for easy classroom reconfiguration and floor clearing.
  • High-Impact Polypropylene – The shell is resistant to ink, school chemicals, and staining, allowing for instant sanitisation.
  • Tamperproof Shell Fasteners – Secured fixings ensure the seat remains permanently and safely attached to the frame.
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 high-traffic junior school environments.
  • Free UK Mainland Delivery: We manage the delivery of institutional refits at no extra cost, keeping your project 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 Engineering. Guaranteed Performance.

  • The Anti-Tilt rear geometry is a crucial design feature for energetic 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 institutional use.

Specification Dimensions

The Size 3 Purple 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
Institutional Benefit
Seat Height
350mm
Standard Size 3 for Year 3 & 4
Seat Dimensions
370mm (W) x 300mm (D)
Optimal thigh support 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
Weight Capacity
125kg (19.6 stone)
Superior structural resilience
Compliance
BS EN1729 Compliant
Certified ergonomic and structural safety
Sustainability
100% Recyclable
Eco-friendly product lifecycle

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 Year 3 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 maintaining correct sitting habits during their time in Key Stage 2.

Q: How does the "Anti-Tilt" mechanism prevent falls?

A: The rear legs are set at a specific outward angle. This shifts the leverage point further back, making it mechanically difficult for the chair to tip backwards even if a student leans back. This proactively prevents falls and related junior injuries.

Q: Is the Deep Purple pigment resistant to staining?

A: Yes. The high-grade polypropylene shell is non-porous. Juice spills, ink, or paints cannot penetrate the surface and can be wiped away easily without leaving residues or fading the vivid amethyst 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.

Purple Anti-Tilt Junior School Chair - Size 3 - 6-8 Years - Grey Safety Frame

Product code: CH43PU
Infuse your middle-primary learning zones with a touch of modern sophistication using the Cobolt Amethyst Polypropylene Anti-Tilt Chair (Size 3 / 6-8 ...

Inc VAT

Exc VAT

£52.00

£43.33

Colours - Purple
Age - 6-8 Years

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In Stock - UK Dispatch

Fast Tracked Dispatch Predictable. Reliable. Hassle-free.

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 Purple Anti-Tilt Junior Seating

The Cobolt Purple Size 3 Chair provides a sturdy and ergonomically sound foundation for students transitioning through the junior age group. Dispatched with Free UK Mainland Delivery, it is built to survive the high-frequency cleaning and heavy daily use required in modern Year 3 and Year 4 classrooms.

Junior Posture & Sustainability

  • Ergonomic Development: 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 its domestic manufacturing.
  • Enhanced Blood Flow: The downward-curved front edge removes pressure points behind the knees, preventing restlessness during tabletop learning sessions.

Institutional Resilience

  • High-Impact Shell: The non-porous violet shell resists staining from ink and school supplies, allowing 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 vertical stacking, allowing cleaning staff to clear floor space efficiently after the school day ends.

The Cobolt Standard

  • 50 Years of Manufacturing Excellence: For half a century, we have remained a trusted partner to the UK public sector, delivering furniture that leads the market in safety and compliance.
  • Complimentary Mainland Transit: Every purchase includes Free UK Mainland Delivery as standard, allowing bursars to calculate exact project costs without hidden shipping variables.
  • Fifteen-Year Financial Shield: Our extensive structural warranty provides unparalleled budget protection, ensuring your furniture remains a reliable, one-time investment.

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

The Purple Size 3 Junior Chair is the primary specification for Year 3 and Year 4 Classrooms, Junior Libraries, Creative Arts Zones, and Community Study Hubs. Its adult-strength frame combined with junior-specific proportions makes it a versatile solution 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 the welded steel frame and the high-impact shell.
  • 3.5kg Unit Weight – Robust construction that remains manageable for staff to move and stack.
  • Slate Grey Powder-Coating – A high-quality metallic finish that resists scratches, scuffs, and daily wear.
  • Stackable Architecture – Efficient vertical stacking allows for easy classroom reconfiguration and floor clearing.
  • High-Impact Polypropylene – The shell is resistant to ink, school chemicals, and staining, allowing for instant sanitisation.
  • Tamperproof Shell Fasteners – Secured fixings ensure the seat remains permanently and safely attached to the frame.
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 high-traffic junior school environments.
  • Free UK Mainland Delivery: We manage the delivery of institutional refits at no extra cost, keeping your project 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 Engineering. Guaranteed Performance.

  • The Anti-Tilt rear geometry is a crucial design feature for energetic 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 institutional use.

The Size 3 Purple 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
Institutional Benefit
Seat Height
350mm
Standard Size 3 for Year 3 & 4
Seat Dimensions
370mm (W) x 300mm (D)
Optimal thigh support 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
Weight Capacity
125kg (19.6 stone)
Superior structural resilience
Compliance
BS EN1729 Compliant
Certified ergonomic and structural safety
Sustainability
100% Recyclable
Eco-friendly product lifecycle

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 Year 3 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 maintaining correct sitting habits during their time in Key Stage 2.

Q: How does the "Anti-Tilt" mechanism prevent falls?

A: The rear legs are set at a specific outward angle. This shifts the leverage point further back, making it mechanically difficult for the chair to tip backwards even if a student leans back. This proactively prevents falls and related junior injuries.

Q: Is the Deep Purple pigment resistant to staining?

A: Yes. The high-grade polypropylene shell is non-porous. Juice spills, ink, or paints cannot penetrate the surface and can be wiped away easily without leaving residues or fading the vivid amethyst 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 Purple Anti-Tilt Junior Seating

The Cobolt Purple Size 3 Chair provides a sturdy and ergonomically sound foundation for students transitioning through the junior age group. Dispatched with Free UK Mainland Delivery, it is built to survive the high-frequency cleaning and heavy daily use required in modern Year 3 and Year 4 classrooms.

Junior Posture & Sustainability

  • Ergonomic Development: 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 its domestic manufacturing.
  • Enhanced Blood Flow: The downward-curved front edge removes pressure points behind the knees, preventing restlessness during tabletop learning sessions.

Institutional Resilience

  • High-Impact Shell: The non-porous violet shell resists staining from ink and school supplies, allowing 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 vertical stacking, allowing cleaning staff to clear floor space efficiently after the school day ends.

The Cobolt Standard

  • 50 Years of Manufacturing Excellence: For half a century, we have remained a trusted partner to the UK public sector, delivering furniture that leads the market in safety and compliance.
  • Complimentary Mainland Transit: Every purchase includes Free UK Mainland Delivery as standard, allowing bursars to calculate exact project costs without hidden shipping variables.
  • Fifteen-Year Financial Shield: Our extensive structural warranty provides unparalleled budget protection, ensuring your furniture remains a reliable, one-time investment.

Features & Benefits

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

The Purple Size 3 Junior Chair is the primary specification for Year 3 and Year 4 Classrooms, Junior Libraries, Creative Arts Zones, and Community Study Hubs. Its adult-strength frame combined with junior-specific proportions makes it a versatile solution 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 the welded steel frame and the high-impact shell.
  • 3.5kg Unit Weight – Robust construction that remains manageable for staff to move and stack.
  • Slate Grey Powder-Coating – A high-quality metallic finish that resists scratches, scuffs, and daily wear.
  • Stackable Architecture – Efficient vertical stacking allows for easy classroom reconfiguration and floor clearing.
  • High-Impact Polypropylene – The shell is resistant to ink, school chemicals, and staining, allowing for instant sanitisation.
  • Tamperproof Shell Fasteners – Secured fixings ensure the seat remains permanently and safely attached to the frame.
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 high-traffic junior school environments.
  • Free UK Mainland Delivery: We manage the delivery of institutional refits at no extra cost, keeping your project 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 Engineering. Guaranteed Performance.

  • The Anti-Tilt rear geometry is a crucial design feature for energetic 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 institutional use.

Specification Dimensions

The Size 3 Purple 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
Institutional Benefit
Seat Height
350mm
Standard Size 3 for Year 3 & 4
Seat Dimensions
370mm (W) x 300mm (D)
Optimal thigh support 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
Weight Capacity
125kg (19.6 stone)
Superior structural resilience
Compliance
BS EN1729 Compliant
Certified ergonomic and structural safety
Sustainability
100% Recyclable
Eco-friendly product lifecycle

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 Year 3 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 maintaining correct sitting habits during their time in Key Stage 2.

Q: How does the "Anti-Tilt" mechanism prevent falls?

A: The rear legs are set at a specific outward angle. This shifts the leverage point further back, making it mechanically difficult for the chair to tip backwards even if a student leans back. This proactively prevents falls and related junior injuries.

Q: Is the Deep Purple pigment resistant to staining?

A: Yes. The high-grade polypropylene shell is non-porous. Juice spills, ink, or paints cannot penetrate the surface and can be wiped away easily without leaving residues or fading the vivid amethyst 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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