A bright red classroom chair engineered with a flexible high-back for spinal support and a secure leg base to prevent backward tilting.
Vividly coloured student chair featuring a gas-injected shell for extra strength and a protective grey coating on the metal underframe.
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 4 Red Anti-Tilt Senior Primary Seating

The Cobolt Red Size 4 Chair provides a durable and ergonomically sound foundation for students aged 8 to 11 years. Dispatched with Free UK Mainland Delivery, it is built to survive the high-frequency use and heavy-duty demands of a bustling Year 5 or Year 6 classroom.

Senior Primary Posture & Sustainability

  • Upper Primary Ergonomics: Adhering to Size 4 EN1729 regulations, the 380mm seat height ensures students maintain a healthy lumbar position while keeping feet firmly planted.
  • Eco-Responsible Lifecycle: Constructed from 100% recyclable polypropylene and steel, this chair can be fully repurposed at the end of its service life to support green targets.
  • Improved Blood Flow: The downward-curved front edge removes pressure points behind the knees, preventing restlessness during tabletop learning sessions.

Institutional Durability

Classroom assets must be exceptionally resilient. We utilize heavy-duty, tamperproof fixings to lock the shell to the grey steel frame, eliminating the risk of students loosening parts and ensuring a safe, rattle-free experience.

The Cobolt Standard

  • 50 Years of Expertise: As a heritage partner to the UK public sector for half a century, we deliver furniture that exceeds the most rigorous safety and compliance benchmarks.
  • Free UK Mainland Delivery: We simplify procurement by including all shipping costs in our base price, ensuring your classroom refit stays strictly on budget.
  • Accident Prevention Engineering: The specialized rear leg profile acts as a physical safeguard, shifting the balance point to discourage "chair swinging" habits in active students.

Where is this Size 4 Red Anti-Tilt Chair utilised?

The Red Size 4 School Chair is the primary specification for Year 5 and Year 6 Classrooms, Primary IT Suites, Junior Libraries, and After-School Study Hubs. Its adult-strength frame combined with senior-primary 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 classroom accidents.
  • Size 4 (8-11 Years) – Precision-engineered 380mm seat height for the upper primary age demographic.
  • 15-Year Structural Guarantee – Comprehensive warranty covering both frame welds and plastic shell integrity.
  • 3.5kg Unit Weight – Exceptionally strong 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 floor clearing for cleaning.
  • High-Impact Polypropylene – The shell is resistant to ink, school chemicals, and staining, allowing for instant sanitisation.
  • Vandal-Resistant 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

Senior Primary Safety. Guaranteed Reliability.

  • The Anti-Tilt rear geometry is a crucial design feature for older primary students, shifting the balance point to proactively prevent dangerous "chair swinging" habits.
  • Strict adherence to BS EN1729 Compliance ensures the seat height (380mm) and depth (300mm) are perfectly scaled for the 8-11 year old stature.
  • 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 4 Red Anti-Tilt Chair combines certified senior primary ergonomics with a heavy-duty safety frame. These specifications detail the materials and dimensions that make it the responsible choice for Year 5 and Year 6 classrooms.

Target Ages
8-11 Years (Size 4)
Material
100% Polypropylene
Guarantee
15 Years
Specification
Details
Institutional Benefit
Seat Height
380mm
Standard Size 4 for upper primary students
Seat Dimensions
370mm (W) x 300mm (D)
Precision sized for Key Stage 2
Total Dimensions
700mm(H) x 410mm(W) x 480mm(D)
Stable classroom footprint
Unit Weight
3.5kg
Robust yet easy to move for staff
Weight Limit
125kg (19.6 stone)
Superior structural resilience
Compliance
BS EN1729 Compliant
Certified ergonomic and structural safety
Sustainability
100% Recyclable
Eco-friendly lifecycle
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: Senior Primary Classroom Seating

Q: Is a "Size 4" chair correct for my Year 5 and Year 6 students?

A: Size 4 (380mm seat height) is the ergonomic standard for children aged 8 to 11 years. It ensures that students can sit with a flat-footed stance, which is essential for maintaining correct sitting habits during the final stages of Key Stage 2.

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

A: Older primary students are often more 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 backwards, thereby proactively preventing accidents.

Q: Is the Crimson Red shell resistant to school supply stains?

A: Yes. The high-grade polypropylene 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 scarlet colour.

Q: Can adults safely sit on these Size 4 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 high can these chairs be safely stacked for storage?

A: These units are designed for safe 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.

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 senior primary furniture regarding ergonomics, strength, and structural durability.

Q: Why purchase from Cobolt Furniture?

A: With 50 years of expertise, we are a trusted heritage 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 4 Red Anti-Tilt Senior Primary Seating

The Cobolt Red Size 4 Chair provides a durable and ergonomically sound foundation for students aged 8 to 11 years. Dispatched with Free UK Mainland Delivery, it is built to survive the high-frequency use and heavy-duty demands of a bustling Year 5 or Year 6 classroom.

Senior Primary Posture & Sustainability

  • Upper Primary Ergonomics: Adhering to Size 4 EN1729 regulations, the 380mm seat height ensures students maintain a healthy lumbar position while keeping feet firmly planted.
  • Eco-Responsible Lifecycle: Constructed from 100% recyclable polypropylene and steel, this chair can be fully repurposed at the end of its service life to support green targets.
  • Improved Blood Flow: The downward-curved front edge removes pressure points behind the knees, preventing restlessness during tabletop learning sessions.

Institutional Durability

Classroom assets must be exceptionally resilient. We utilize heavy-duty, tamperproof fixings to lock the shell to the grey steel frame, eliminating the risk of students loosening parts and ensuring a safe, rattle-free experience.

The Cobolt Standard

  • 50 Years of Expertise: As a heritage partner to the UK public sector for half a century, we deliver furniture that exceeds the most rigorous safety and compliance benchmarks.
  • Free UK Mainland Delivery: We simplify procurement by including all shipping costs in our base price, ensuring your classroom refit stays strictly on budget.
  • Accident Prevention Engineering: The specialized rear leg profile acts as a physical safeguard, shifting the balance point to discourage "chair swinging" habits in active students.

Features & Benefits

Where is this Size 4 Red Anti-Tilt Chair utilised?

The Red Size 4 School Chair is the primary specification for Year 5 and Year 6 Classrooms, Primary IT Suites, Junior Libraries, and After-School Study Hubs. Its adult-strength frame combined with senior-primary 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 classroom accidents.
  • Size 4 (8-11 Years) – Precision-engineered 380mm seat height for the upper primary age demographic.
  • 15-Year Structural Guarantee – Comprehensive warranty covering both frame welds and plastic shell integrity.
  • 3.5kg Unit Weight – Exceptionally strong 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 floor clearing for cleaning.
  • High-Impact Polypropylene – The shell is resistant to ink, school chemicals, and staining, allowing for instant sanitisation.
  • Vandal-Resistant 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

Safety & Warranty

Senior Primary Safety. Guaranteed Reliability.

  • The Anti-Tilt rear geometry is a crucial design feature for older primary students, shifting the balance point to proactively prevent dangerous "chair swinging" habits.
  • Strict adherence to BS EN1729 Compliance ensures the seat height (380mm) and depth (300mm) are perfectly scaled for the 8-11 year old stature.
  • 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 4 Red Anti-Tilt Chair combines certified senior primary ergonomics with a heavy-duty safety frame. These specifications detail the materials and dimensions that make it the responsible choice for Year 5 and Year 6 classrooms.

Target Ages
8-11 Years (Size 4)
Material
100% Polypropylene
Guarantee
15 Years
Specification
Details
Institutional Benefit
Seat Height
380mm
Standard Size 4 for upper primary students
Seat Dimensions
370mm (W) x 300mm (D)
Precision sized for Key Stage 2
Total Dimensions
700mm(H) x 410mm(W) x 480mm(D)
Stable classroom footprint
Unit Weight
3.5kg
Robust yet easy to move for staff
Weight Limit
125kg (19.6 stone)
Superior structural resilience
Compliance
BS EN1729 Compliant
Certified ergonomic and structural safety
Sustainability
100% Recyclable
Eco-friendly lifecycle
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: Senior Primary Classroom Seating

Q: Is a "Size 4" chair correct for my Year 5 and Year 6 students?

A: Size 4 (380mm seat height) is the ergonomic standard for children aged 8 to 11 years. It ensures that students can sit with a flat-footed stance, which is essential for maintaining correct sitting habits during the final stages of Key Stage 2.

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

A: Older primary students are often more 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 backwards, thereby proactively preventing accidents.

Q: Is the Crimson Red shell resistant to school supply stains?

A: Yes. The high-grade polypropylene 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 scarlet colour.

Q: Can adults safely sit on these Size 4 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 high can these chairs be safely stacked for storage?

A: These units are designed for safe 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.

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 senior primary furniture regarding ergonomics, strength, and structural durability.

Q: Why purchase from Cobolt Furniture?

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

Red Classic Polypropylene Anti-Tilt School Chair - Size 4 - 8-11 Years

Product code: CH44RE
Reinvigorate your upper-primary learning environments with the Cobolt Scarlet Polypropylene Anti-Tilt Chair (Size 4 / 8-11 Years). Specifically engine...

Inc VAT

Exc VAT

£54.00

£45.00

Colours - Red
Age - 8-11 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 4 Red Anti-Tilt Senior Primary Seating

The Cobolt Red Size 4 Chair provides a durable and ergonomically sound foundation for students aged 8 to 11 years. Dispatched with Free UK Mainland Delivery, it is built to survive the high-frequency use and heavy-duty demands of a bustling Year 5 or Year 6 classroom.

Senior Primary Posture & Sustainability

  • Upper Primary Ergonomics: Adhering to Size 4 EN1729 regulations, the 380mm seat height ensures students maintain a healthy lumbar position while keeping feet firmly planted.
  • Eco-Responsible Lifecycle: Constructed from 100% recyclable polypropylene and steel, this chair can be fully repurposed at the end of its service life to support green targets.
  • Improved Blood Flow: The downward-curved front edge removes pressure points behind the knees, preventing restlessness during tabletop learning sessions.

Institutional Durability

Classroom assets must be exceptionally resilient. We utilize heavy-duty, tamperproof fixings to lock the shell to the grey steel frame, eliminating the risk of students loosening parts and ensuring a safe, rattle-free experience.

The Cobolt Standard

  • 50 Years of Expertise: As a heritage partner to the UK public sector for half a century, we deliver furniture that exceeds the most rigorous safety and compliance benchmarks.
  • Free UK Mainland Delivery: We simplify procurement by including all shipping costs in our base price, ensuring your classroom refit stays strictly on budget.
  • Accident Prevention Engineering: The specialized rear leg profile acts as a physical safeguard, shifting the balance point to discourage "chair swinging" habits in active students.

Where is this Size 4 Red Anti-Tilt Chair utilised?

The Red Size 4 School Chair is the primary specification for Year 5 and Year 6 Classrooms, Primary IT Suites, Junior Libraries, and After-School Study Hubs. Its adult-strength frame combined with senior-primary 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 classroom accidents.
  • Size 4 (8-11 Years) – Precision-engineered 380mm seat height for the upper primary age demographic.
  • 15-Year Structural Guarantee – Comprehensive warranty covering both frame welds and plastic shell integrity.
  • 3.5kg Unit Weight – Exceptionally strong 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 floor clearing for cleaning.
  • High-Impact Polypropylene – The shell is resistant to ink, school chemicals, and staining, allowing for instant sanitisation.
  • Vandal-Resistant 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

Senior Primary Safety. Guaranteed Reliability.

  • The Anti-Tilt rear geometry is a crucial design feature for older primary students, shifting the balance point to proactively prevent dangerous "chair swinging" habits.
  • Strict adherence to BS EN1729 Compliance ensures the seat height (380mm) and depth (300mm) are perfectly scaled for the 8-11 year old stature.
  • 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 4 Red Anti-Tilt Chair combines certified senior primary ergonomics with a heavy-duty safety frame. These specifications detail the materials and dimensions that make it the responsible choice for Year 5 and Year 6 classrooms.

Target Ages
8-11 Years (Size 4)
Material
100% Polypropylene
Guarantee
15 Years
Specification
Details
Institutional Benefit
Seat Height
380mm
Standard Size 4 for upper primary students
Seat Dimensions
370mm (W) x 300mm (D)
Precision sized for Key Stage 2
Total Dimensions
700mm(H) x 410mm(W) x 480mm(D)
Stable classroom footprint
Unit Weight
3.5kg
Robust yet easy to move for staff
Weight Limit
125kg (19.6 stone)
Superior structural resilience
Compliance
BS EN1729 Compliant
Certified ergonomic and structural safety
Sustainability
100% Recyclable
Eco-friendly lifecycle
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: Senior Primary Classroom Seating

Q: Is a "Size 4" chair correct for my Year 5 and Year 6 students?

A: Size 4 (380mm seat height) is the ergonomic standard for children aged 8 to 11 years. It ensures that students can sit with a flat-footed stance, which is essential for maintaining correct sitting habits during the final stages of Key Stage 2.

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

A: Older primary students are often more 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 backwards, thereby proactively preventing accidents.

Q: Is the Crimson Red shell resistant to school supply stains?

A: Yes. The high-grade polypropylene 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 scarlet colour.

Q: Can adults safely sit on these Size 4 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 high can these chairs be safely stacked for storage?

A: These units are designed for safe 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.

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 senior primary furniture regarding ergonomics, strength, and structural durability.

Q: Why purchase from Cobolt Furniture?

A: With 50 years of expertise, we are a trusted heritage 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 4 Red Anti-Tilt Senior Primary Seating

The Cobolt Red Size 4 Chair provides a durable and ergonomically sound foundation for students aged 8 to 11 years. Dispatched with Free UK Mainland Delivery, it is built to survive the high-frequency use and heavy-duty demands of a bustling Year 5 or Year 6 classroom.

Senior Primary Posture & Sustainability

  • Upper Primary Ergonomics: Adhering to Size 4 EN1729 regulations, the 380mm seat height ensures students maintain a healthy lumbar position while keeping feet firmly planted.
  • Eco-Responsible Lifecycle: Constructed from 100% recyclable polypropylene and steel, this chair can be fully repurposed at the end of its service life to support green targets.
  • Improved Blood Flow: The downward-curved front edge removes pressure points behind the knees, preventing restlessness during tabletop learning sessions.

Institutional Durability

Classroom assets must be exceptionally resilient. We utilize heavy-duty, tamperproof fixings to lock the shell to the grey steel frame, eliminating the risk of students loosening parts and ensuring a safe, rattle-free experience.

The Cobolt Standard

  • 50 Years of Expertise: As a heritage partner to the UK public sector for half a century, we deliver furniture that exceeds the most rigorous safety and compliance benchmarks.
  • Free UK Mainland Delivery: We simplify procurement by including all shipping costs in our base price, ensuring your classroom refit stays strictly on budget.
  • Accident Prevention Engineering: The specialized rear leg profile acts as a physical safeguard, shifting the balance point to discourage "chair swinging" habits in active students.

Features & Benefits

Where is this Size 4 Red Anti-Tilt Chair utilised?

The Red Size 4 School Chair is the primary specification for Year 5 and Year 6 Classrooms, Primary IT Suites, Junior Libraries, and After-School Study Hubs. Its adult-strength frame combined with senior-primary 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 classroom accidents.
  • Size 4 (8-11 Years) – Precision-engineered 380mm seat height for the upper primary age demographic.
  • 15-Year Structural Guarantee – Comprehensive warranty covering both frame welds and plastic shell integrity.
  • 3.5kg Unit Weight – Exceptionally strong 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 floor clearing for cleaning.
  • High-Impact Polypropylene – The shell is resistant to ink, school chemicals, and staining, allowing for instant sanitisation.
  • Vandal-Resistant 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

Safety & Warranty

Senior Primary Safety. Guaranteed Reliability.

  • The Anti-Tilt rear geometry is a crucial design feature for older primary students, shifting the balance point to proactively prevent dangerous "chair swinging" habits.
  • Strict adherence to BS EN1729 Compliance ensures the seat height (380mm) and depth (300mm) are perfectly scaled for the 8-11 year old stature.
  • 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 4 Red Anti-Tilt Chair combines certified senior primary ergonomics with a heavy-duty safety frame. These specifications detail the materials and dimensions that make it the responsible choice for Year 5 and Year 6 classrooms.

Target Ages
8-11 Years (Size 4)
Material
100% Polypropylene
Guarantee
15 Years
Specification
Details
Institutional Benefit
Seat Height
380mm
Standard Size 4 for upper primary students
Seat Dimensions
370mm (W) x 300mm (D)
Precision sized for Key Stage 2
Total Dimensions
700mm(H) x 410mm(W) x 480mm(D)
Stable classroom footprint
Unit Weight
3.5kg
Robust yet easy to move for staff
Weight Limit
125kg (19.6 stone)
Superior structural resilience
Compliance
BS EN1729 Compliant
Certified ergonomic and structural safety
Sustainability
100% Recyclable
Eco-friendly lifecycle
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: Senior Primary Classroom Seating

Q: Is a "Size 4" chair correct for my Year 5 and Year 6 students?

A: Size 4 (380mm seat height) is the ergonomic standard for children aged 8 to 11 years. It ensures that students can sit with a flat-footed stance, which is essential for maintaining correct sitting habits during the final stages of Key Stage 2.

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

A: Older primary students are often more 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 backwards, thereby proactively preventing accidents.

Q: Is the Crimson Red shell resistant to school supply stains?

A: Yes. The high-grade polypropylene 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 scarlet colour.

Q: Can adults safely sit on these Size 4 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 high can these chairs be safely stacked for storage?

A: These units are designed for safe 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.

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 senior primary furniture regarding ergonomics, strength, and structural durability.

Q: Why purchase from Cobolt Furniture?

A: With 50 years of expertise, we are a trusted heritage 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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