A dark grey plastic chair positioned on an illustrated alphabet rug in a cosy early years reading corner, surrounded by book displays and beanbags.
Dark grey KI Europe Postura+ chair with a sleek industrial look, contoured seat, and durable build for high-traffic educational environments.
Dark grey KI Europe Postura+ chair with a charcoal hue and robust plastic frame, suited for high-use institutional environments.
Sizing chart for KI Europe’s Postura+ Chairs showing age ranges, seat heights, dimensions, and weight for nursery to adult users, with colour-coded feet illustrations.

Overview

Features

Safety & Warranty

Specifications & Dimensions

Delivery & Returns

Product FAQs

Product Overview: Dark Grey Postura+ Chair (310mm, Ages 4–6)

The Dark Grey Postura+ 310mm chair provides a sleek, neutral tone suitable for design-led classrooms, flexible learning spaces, SEN environments and modern primary settings. Specifically created for children aged 4–6, it offers supportive ergonomics, lightweight handling and long-lasting durability.

Ergonomic Seating for KS1 Pupils

  • Seat height of 310mm designed in line with DfE size mark 2 for ages 4–6.
  • Waterfall seat edge helps reduce pressure on young legs.
  • Curved backrest encourages supported, upright sitting posture.

A Robust One-Piece School Chair

  • One-piece injection-moulded polypropylene with no screws or joints.
  • Gas-injected legs provide added strength for intensive daily use.
  • Stackable up to 12 high for efficient storage and classroom flexibility.

Neutral Colour for Modern Learning Spaces

Dark Grey is a versatile, contemporary colour that blends effortlessly into a variety of classroom themes. The stain-resistant finish supports hygiene standards, while the ventilated back panel promotes comfort during extended sitting time.

Why Cobolt: Expertise, Personal Service & Delivery Included

  • 50 years of educational furniture expertise supporting UK schools and public-sector sites.
  • Personal account management for guided, stress-free purchasing.
  • Delivery included across mainland UK—simple, predictable ordering.
  • High-touch customer service with clear communication and dependable lead times.

Where the Dark Grey Postura+ Chair Performs Best

The Dark Grey Postura+ 310mm chair is ideal for KS1 classrooms, multi-use learning zones, SEN areas, ICT spaces, reading corners and modern classroom designs. Its neutral tone offers flexibility for both colourful and minimalist learning environments.

Key Features

  • Correct KS1 height – 310mm seat height designed for ages 4–6.
  • One-piece polypropylene mould – no loose parts, screws or weak joints.
  • High-impact material – includes 30% recycled polypropylene for sustainable durability.
  • Gas-injected legs – reinforced for long-lasting classroom performance.
  • Ventilation back window – helps regulate comfort during seated tasks.
  • Anti-rocking stability – promotes safer sitting in active KS1 settings.
  • Stain-resistant surface – easy to wipe clean after crafts, snacks or messy play.
  • UV-stable Dark Grey finish – suitable for occasional protected outdoor use.
  • Stacks up to 12 – efficient storage in classrooms, halls and shared areas.
20-year warranty
Delivery included across mainland UK
UK manufactured
BS EN 1729 compliant

The Cobolt Advantage

  • Delivery included – one transparent price for mainland UK customers.
  • Personal account-managed service – guided support throughout your order.
  • 50 years of expertise – trusted knowledge supporting MATs, councils and education teams.
  • Hassle-free procurement – reliable lead times and clear communication at every step.

Safety & Warranty for Dark Grey Postura+ 310mm Chairs

  • Certified to BS EN 1729–1:2015 for correct classroom ergonomics.
  • Complies with BS EN 1729–2:2023 for essential strength, stability and durability.
  • Anti-rocking base design offers increased safety in busy KS1 environments.
  • Stain-resistant, easy-clean surface supports healthy classroom hygiene.
  • Protected by a 20-year warranty covering structural integrity and material performance.

The Dark Grey Postura+ 310mm chair is designed specifically for KS1 pupils, offering lightweight handling, supportive classroom ergonomics and robust day-to-day durability. These specifications help schools, MATs and public-sector buyers plan classrooms, halls and flexible learning spaces with confidence.

Dimensions
550mm (H) × 360mm (W) × 365mm (D)
Weight
1.5kg
Warranty
20 years
Specification
Details
Purpose / Benefit
Seat Height
310mm
Correct KS1 height for children aged 4–6 years.
Overall Dimensions
550mm (H) × 360mm (W) × 365mm (D)
A compact size that fits standard KS1 table heights and classroom layouts.
Material
High-impact polypropylene (30% recycled)
Lightweight, durable and more sustainable for daily school use.
Construction
One-piece injection-moulded shell with gas-injected legs
Eliminates weak points and increases long-term strength.
Ventilation
Integrated back ventilation window
Improves airflow for pupils during longer tasks and lessons.
Front Edge
Waterfall seat edge
Reduces pressure on legs to improve comfort and posture.
Anti-Static / Anti-Rocking
Yes
Supports safer use in energetic KS1 environments.
Stacking
Up to 12 chairs
Maximises storage efficiency in halls, classrooms and small spaces.
Outdoor Suitability
UV-stable Dark Grey finish
Suitable for occasional sheltered outdoor learning.
Compliance
BS EN 1729–1:2015 / BS EN 1729–2:2023
Meets UK standards for educational ergonomics, safety and durability.
Colour
Dark Grey
Neutral, contemporary tone ideal for modern or design-led learning spaces.

All measurements follow KS1 size mark 2 guidance and may vary slightly within normal manufacturing tolerances.

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 10 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: Dark Grey Postura+ 310mm Classroom Chair (Ages 4–6)

Q: What age group is the Dark Grey 310mm Postura+ chair suitable for?

A: It is designed for children aged 4–6, following DfE size mark 2 guidance for correct KS1 seating.

Q: Why choose Dark Grey for a classroom?

A: Dark Grey offers a modern, neutral tone that pairs well with colourful displays, ICT spaces and contemporary classroom designs.

Q: Are these chairs strong enough for daily primary use?

A: Yes—gas-injected legs, a one-piece shell and high-impact polymers ensure long-lasting durability in active KS1 classrooms.

Q: Is delivery free?

A: Yes—every order benefits from free delivery to mainland UK, giving schools and MATs clear, predictable budgeting with no added charges.

Q: Is the chair easy to clean?

A: Very—its stain-resistant, non-porous shell wipes clean quickly using mild detergents, ideal for glue, paint and snack-time spills.

Q: Can the Dark Grey chairs be stacked?

A: Yes—Postura+ chairs stack up to 12 high, helping schools make the most of space in classrooms, halls and multi-use areas.

Q: Are they suitable for outdoor learning?

A: The UV-stable finish allows for occasional protected outdoor use, although indoor storage is recommended for best longevity.

Q: What does the 20-year warranty cover?

A: The warranty protects against material defects and structural issues, giving long-term peace of mind for schools and MATs.

Overview

Product Overview: Dark Grey Postura+ Chair (310mm, Ages 4–6)

The Dark Grey Postura+ 310mm chair provides a sleek, neutral tone suitable for design-led classrooms, flexible learning spaces, SEN environments and modern primary settings. Specifically created for children aged 4–6, it offers supportive ergonomics, lightweight handling and long-lasting durability.

Ergonomic Seating for KS1 Pupils

  • Seat height of 310mm designed in line with DfE size mark 2 for ages 4–6.
  • Waterfall seat edge helps reduce pressure on young legs.
  • Curved backrest encourages supported, upright sitting posture.

A Robust One-Piece School Chair

  • One-piece injection-moulded polypropylene with no screws or joints.
  • Gas-injected legs provide added strength for intensive daily use.
  • Stackable up to 12 high for efficient storage and classroom flexibility.

Neutral Colour for Modern Learning Spaces

Dark Grey is a versatile, contemporary colour that blends effortlessly into a variety of classroom themes. The stain-resistant finish supports hygiene standards, while the ventilated back panel promotes comfort during extended sitting time.

Why Cobolt: Expertise, Personal Service & Delivery Included

  • 50 years of educational furniture expertise supporting UK schools and public-sector sites.
  • Personal account management for guided, stress-free purchasing.
  • Delivery included across mainland UK—simple, predictable ordering.
  • High-touch customer service with clear communication and dependable lead times.

Features & Benefits

Where the Dark Grey Postura+ Chair Performs Best

The Dark Grey Postura+ 310mm chair is ideal for KS1 classrooms, multi-use learning zones, SEN areas, ICT spaces, reading corners and modern classroom designs. Its neutral tone offers flexibility for both colourful and minimalist learning environments.

Key Features

  • Correct KS1 height – 310mm seat height designed for ages 4–6.
  • One-piece polypropylene mould – no loose parts, screws or weak joints.
  • High-impact material – includes 30% recycled polypropylene for sustainable durability.
  • Gas-injected legs – reinforced for long-lasting classroom performance.
  • Ventilation back window – helps regulate comfort during seated tasks.
  • Anti-rocking stability – promotes safer sitting in active KS1 settings.
  • Stain-resistant surface – easy to wipe clean after crafts, snacks or messy play.
  • UV-stable Dark Grey finish – suitable for occasional protected outdoor use.
  • Stacks up to 12 – efficient storage in classrooms, halls and shared areas.
20-year warranty
Delivery included across mainland UK
UK manufactured
BS EN 1729 compliant

The Cobolt Advantage

  • Delivery included – one transparent price for mainland UK customers.
  • Personal account-managed service – guided support throughout your order.
  • 50 years of expertise – trusted knowledge supporting MATs, councils and education teams.
  • Hassle-free procurement – reliable lead times and clear communication at every step.

Safety & Warranty

Safety & Warranty for Dark Grey Postura+ 310mm Chairs

  • Certified to BS EN 1729–1:2015 for correct classroom ergonomics.
  • Complies with BS EN 1729–2:2023 for essential strength, stability and durability.
  • Anti-rocking base design offers increased safety in busy KS1 environments.
  • Stain-resistant, easy-clean surface supports healthy classroom hygiene.
  • Protected by a 20-year warranty covering structural integrity and material performance.

Specification Dimensions

The Dark Grey Postura+ 310mm chair is designed specifically for KS1 pupils, offering lightweight handling, supportive classroom ergonomics and robust day-to-day durability. These specifications help schools, MATs and public-sector buyers plan classrooms, halls and flexible learning spaces with confidence.

Dimensions
550mm (H) × 360mm (W) × 365mm (D)
Weight
1.5kg
Warranty
20 years
Specification
Details
Purpose / Benefit
Seat Height
310mm
Correct KS1 height for children aged 4–6 years.
Overall Dimensions
550mm (H) × 360mm (W) × 365mm (D)
A compact size that fits standard KS1 table heights and classroom layouts.
Material
High-impact polypropylene (30% recycled)
Lightweight, durable and more sustainable for daily school use.
Construction
One-piece injection-moulded shell with gas-injected legs
Eliminates weak points and increases long-term strength.
Ventilation
Integrated back ventilation window
Improves airflow for pupils during longer tasks and lessons.
Front Edge
Waterfall seat edge
Reduces pressure on legs to improve comfort and posture.
Anti-Static / Anti-Rocking
Yes
Supports safer use in energetic KS1 environments.
Stacking
Up to 12 chairs
Maximises storage efficiency in halls, classrooms and small spaces.
Outdoor Suitability
UV-stable Dark Grey finish
Suitable for occasional sheltered outdoor learning.
Compliance
BS EN 1729–1:2015 / BS EN 1729–2:2023
Meets UK standards for educational ergonomics, safety and durability.
Colour
Dark Grey
Neutral, contemporary tone ideal for modern or design-led learning spaces.

All measurements follow KS1 size mark 2 guidance and may vary slightly within normal manufacturing tolerances.

Delivery & Returns

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 10 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: Dark Grey Postura+ 310mm Classroom Chair (Ages 4–6)

Q: What age group is the Dark Grey 310mm Postura+ chair suitable for?

A: It is designed for children aged 4–6, following DfE size mark 2 guidance for correct KS1 seating.

Q: Why choose Dark Grey for a classroom?

A: Dark Grey offers a modern, neutral tone that pairs well with colourful displays, ICT spaces and contemporary classroom designs.

Q: Are these chairs strong enough for daily primary use?

A: Yes—gas-injected legs, a one-piece shell and high-impact polymers ensure long-lasting durability in active KS1 classrooms.

Q: Is delivery free?

A: Yes—every order benefits from free delivery to mainland UK, giving schools and MATs clear, predictable budgeting with no added charges.

Q: Is the chair easy to clean?

A: Very—its stain-resistant, non-porous shell wipes clean quickly using mild detergents, ideal for glue, paint and snack-time spills.

Q: Can the Dark Grey chairs be stacked?

A: Yes—Postura+ chairs stack up to 12 high, helping schools make the most of space in classrooms, halls and multi-use areas.

Q: Are they suitable for outdoor learning?

A: The UV-stable finish allows for occasional protected outdoor use, although indoor storage is recommended for best longevity.

Q: What does the 20-year warranty cover?

A: The warranty protects against material defects and structural issues, giving long-term peace of mind for schools and MATs.

Dark Grey Postura+ Ergonomic One Piece Classroom Chair - 4-6 Years

Product code: KI46DG
The Dark Grey Postura+ Classroom Chair offers a modern, professional look ideal for contemporary KS1 learning environments. At 310mm seat height, it ...

Inc VAT

Exc VAT

£35.00

£29.17

Height by Age - 4-6 Years
Colours - Dark Grey

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Overview

Features

Safety & Warranty

Specifications & Dimensions

Delivery & Returns

Product FAQs

Product Overview: Dark Grey Postura+ Chair (310mm, Ages 4–6)

The Dark Grey Postura+ 310mm chair provides a sleek, neutral tone suitable for design-led classrooms, flexible learning spaces, SEN environments and modern primary settings. Specifically created for children aged 4–6, it offers supportive ergonomics, lightweight handling and long-lasting durability.

Ergonomic Seating for KS1 Pupils

  • Seat height of 310mm designed in line with DfE size mark 2 for ages 4–6.
  • Waterfall seat edge helps reduce pressure on young legs.
  • Curved backrest encourages supported, upright sitting posture.

A Robust One-Piece School Chair

  • One-piece injection-moulded polypropylene with no screws or joints.
  • Gas-injected legs provide added strength for intensive daily use.
  • Stackable up to 12 high for efficient storage and classroom flexibility.

Neutral Colour for Modern Learning Spaces

Dark Grey is a versatile, contemporary colour that blends effortlessly into a variety of classroom themes. The stain-resistant finish supports hygiene standards, while the ventilated back panel promotes comfort during extended sitting time.

Why Cobolt: Expertise, Personal Service & Delivery Included

  • 50 years of educational furniture expertise supporting UK schools and public-sector sites.
  • Personal account management for guided, stress-free purchasing.
  • Delivery included across mainland UK—simple, predictable ordering.
  • High-touch customer service with clear communication and dependable lead times.

Where the Dark Grey Postura+ Chair Performs Best

The Dark Grey Postura+ 310mm chair is ideal for KS1 classrooms, multi-use learning zones, SEN areas, ICT spaces, reading corners and modern classroom designs. Its neutral tone offers flexibility for both colourful and minimalist learning environments.

Key Features

  • Correct KS1 height – 310mm seat height designed for ages 4–6.
  • One-piece polypropylene mould – no loose parts, screws or weak joints.
  • High-impact material – includes 30% recycled polypropylene for sustainable durability.
  • Gas-injected legs – reinforced for long-lasting classroom performance.
  • Ventilation back window – helps regulate comfort during seated tasks.
  • Anti-rocking stability – promotes safer sitting in active KS1 settings.
  • Stain-resistant surface – easy to wipe clean after crafts, snacks or messy play.
  • UV-stable Dark Grey finish – suitable for occasional protected outdoor use.
  • Stacks up to 12 – efficient storage in classrooms, halls and shared areas.
20-year warranty
Delivery included across mainland UK
UK manufactured
BS EN 1729 compliant

The Cobolt Advantage

  • Delivery included – one transparent price for mainland UK customers.
  • Personal account-managed service – guided support throughout your order.
  • 50 years of expertise – trusted knowledge supporting MATs, councils and education teams.
  • Hassle-free procurement – reliable lead times and clear communication at every step.

Safety & Warranty for Dark Grey Postura+ 310mm Chairs

  • Certified to BS EN 1729–1:2015 for correct classroom ergonomics.
  • Complies with BS EN 1729–2:2023 for essential strength, stability and durability.
  • Anti-rocking base design offers increased safety in busy KS1 environments.
  • Stain-resistant, easy-clean surface supports healthy classroom hygiene.
  • Protected by a 20-year warranty covering structural integrity and material performance.

The Dark Grey Postura+ 310mm chair is designed specifically for KS1 pupils, offering lightweight handling, supportive classroom ergonomics and robust day-to-day durability. These specifications help schools, MATs and public-sector buyers plan classrooms, halls and flexible learning spaces with confidence.

Dimensions
550mm (H) × 360mm (W) × 365mm (D)
Weight
1.5kg
Warranty
20 years
Specification
Details
Purpose / Benefit
Seat Height
310mm
Correct KS1 height for children aged 4–6 years.
Overall Dimensions
550mm (H) × 360mm (W) × 365mm (D)
A compact size that fits standard KS1 table heights and classroom layouts.
Material
High-impact polypropylene (30% recycled)
Lightweight, durable and more sustainable for daily school use.
Construction
One-piece injection-moulded shell with gas-injected legs
Eliminates weak points and increases long-term strength.
Ventilation
Integrated back ventilation window
Improves airflow for pupils during longer tasks and lessons.
Front Edge
Waterfall seat edge
Reduces pressure on legs to improve comfort and posture.
Anti-Static / Anti-Rocking
Yes
Supports safer use in energetic KS1 environments.
Stacking
Up to 12 chairs
Maximises storage efficiency in halls, classrooms and small spaces.
Outdoor Suitability
UV-stable Dark Grey finish
Suitable for occasional sheltered outdoor learning.
Compliance
BS EN 1729–1:2015 / BS EN 1729–2:2023
Meets UK standards for educational ergonomics, safety and durability.
Colour
Dark Grey
Neutral, contemporary tone ideal for modern or design-led learning spaces.

All measurements follow KS1 size mark 2 guidance and may vary slightly within normal manufacturing tolerances.

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 10 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: Dark Grey Postura+ 310mm Classroom Chair (Ages 4–6)

Q: What age group is the Dark Grey 310mm Postura+ chair suitable for?

A: It is designed for children aged 4–6, following DfE size mark 2 guidance for correct KS1 seating.

Q: Why choose Dark Grey for a classroom?

A: Dark Grey offers a modern, neutral tone that pairs well with colourful displays, ICT spaces and contemporary classroom designs.

Q: Are these chairs strong enough for daily primary use?

A: Yes—gas-injected legs, a one-piece shell and high-impact polymers ensure long-lasting durability in active KS1 classrooms.

Q: Is delivery free?

A: Yes—every order benefits from free delivery to mainland UK, giving schools and MATs clear, predictable budgeting with no added charges.

Q: Is the chair easy to clean?

A: Very—its stain-resistant, non-porous shell wipes clean quickly using mild detergents, ideal for glue, paint and snack-time spills.

Q: Can the Dark Grey chairs be stacked?

A: Yes—Postura+ chairs stack up to 12 high, helping schools make the most of space in classrooms, halls and multi-use areas.

Q: Are they suitable for outdoor learning?

A: The UV-stable finish allows for occasional protected outdoor use, although indoor storage is recommended for best longevity.

Q: What does the 20-year warranty cover?

A: The warranty protects against material defects and structural issues, giving long-term peace of mind for schools and MATs.

Overview

Product Overview: Dark Grey Postura+ Chair (310mm, Ages 4–6)

The Dark Grey Postura+ 310mm chair provides a sleek, neutral tone suitable for design-led classrooms, flexible learning spaces, SEN environments and modern primary settings. Specifically created for children aged 4–6, it offers supportive ergonomics, lightweight handling and long-lasting durability.

Ergonomic Seating for KS1 Pupils

  • Seat height of 310mm designed in line with DfE size mark 2 for ages 4–6.
  • Waterfall seat edge helps reduce pressure on young legs.
  • Curved backrest encourages supported, upright sitting posture.

A Robust One-Piece School Chair

  • One-piece injection-moulded polypropylene with no screws or joints.
  • Gas-injected legs provide added strength for intensive daily use.
  • Stackable up to 12 high for efficient storage and classroom flexibility.

Neutral Colour for Modern Learning Spaces

Dark Grey is a versatile, contemporary colour that blends effortlessly into a variety of classroom themes. The stain-resistant finish supports hygiene standards, while the ventilated back panel promotes comfort during extended sitting time.

Why Cobolt: Expertise, Personal Service & Delivery Included

  • 50 years of educational furniture expertise supporting UK schools and public-sector sites.
  • Personal account management for guided, stress-free purchasing.
  • Delivery included across mainland UK—simple, predictable ordering.
  • High-touch customer service with clear communication and dependable lead times.

Features & Benefits

Where the Dark Grey Postura+ Chair Performs Best

The Dark Grey Postura+ 310mm chair is ideal for KS1 classrooms, multi-use learning zones, SEN areas, ICT spaces, reading corners and modern classroom designs. Its neutral tone offers flexibility for both colourful and minimalist learning environments.

Key Features

  • Correct KS1 height – 310mm seat height designed for ages 4–6.
  • One-piece polypropylene mould – no loose parts, screws or weak joints.
  • High-impact material – includes 30% recycled polypropylene for sustainable durability.
  • Gas-injected legs – reinforced for long-lasting classroom performance.
  • Ventilation back window – helps regulate comfort during seated tasks.
  • Anti-rocking stability – promotes safer sitting in active KS1 settings.
  • Stain-resistant surface – easy to wipe clean after crafts, snacks or messy play.
  • UV-stable Dark Grey finish – suitable for occasional protected outdoor use.
  • Stacks up to 12 – efficient storage in classrooms, halls and shared areas.
20-year warranty
Delivery included across mainland UK
UK manufactured
BS EN 1729 compliant

The Cobolt Advantage

  • Delivery included – one transparent price for mainland UK customers.
  • Personal account-managed service – guided support throughout your order.
  • 50 years of expertise – trusted knowledge supporting MATs, councils and education teams.
  • Hassle-free procurement – reliable lead times and clear communication at every step.

Safety & Warranty

Safety & Warranty for Dark Grey Postura+ 310mm Chairs

  • Certified to BS EN 1729–1:2015 for correct classroom ergonomics.
  • Complies with BS EN 1729–2:2023 for essential strength, stability and durability.
  • Anti-rocking base design offers increased safety in busy KS1 environments.
  • Stain-resistant, easy-clean surface supports healthy classroom hygiene.
  • Protected by a 20-year warranty covering structural integrity and material performance.

Specification Dimensions

The Dark Grey Postura+ 310mm chair is designed specifically for KS1 pupils, offering lightweight handling, supportive classroom ergonomics and robust day-to-day durability. These specifications help schools, MATs and public-sector buyers plan classrooms, halls and flexible learning spaces with confidence.

Dimensions
550mm (H) × 360mm (W) × 365mm (D)
Weight
1.5kg
Warranty
20 years
Specification
Details
Purpose / Benefit
Seat Height
310mm
Correct KS1 height for children aged 4–6 years.
Overall Dimensions
550mm (H) × 360mm (W) × 365mm (D)
A compact size that fits standard KS1 table heights and classroom layouts.
Material
High-impact polypropylene (30% recycled)
Lightweight, durable and more sustainable for daily school use.
Construction
One-piece injection-moulded shell with gas-injected legs
Eliminates weak points and increases long-term strength.
Ventilation
Integrated back ventilation window
Improves airflow for pupils during longer tasks and lessons.
Front Edge
Waterfall seat edge
Reduces pressure on legs to improve comfort and posture.
Anti-Static / Anti-Rocking
Yes
Supports safer use in energetic KS1 environments.
Stacking
Up to 12 chairs
Maximises storage efficiency in halls, classrooms and small spaces.
Outdoor Suitability
UV-stable Dark Grey finish
Suitable for occasional sheltered outdoor learning.
Compliance
BS EN 1729–1:2015 / BS EN 1729–2:2023
Meets UK standards for educational ergonomics, safety and durability.
Colour
Dark Grey
Neutral, contemporary tone ideal for modern or design-led learning spaces.

All measurements follow KS1 size mark 2 guidance and may vary slightly within normal manufacturing tolerances.

Delivery & Returns

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 10 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: Dark Grey Postura+ 310mm Classroom Chair (Ages 4–6)

Q: What age group is the Dark Grey 310mm Postura+ chair suitable for?

A: It is designed for children aged 4–6, following DfE size mark 2 guidance for correct KS1 seating.

Q: Why choose Dark Grey for a classroom?

A: Dark Grey offers a modern, neutral tone that pairs well with colourful displays, ICT spaces and contemporary classroom designs.

Q: Are these chairs strong enough for daily primary use?

A: Yes—gas-injected legs, a one-piece shell and high-impact polymers ensure long-lasting durability in active KS1 classrooms.

Q: Is delivery free?

A: Yes—every order benefits from free delivery to mainland UK, giving schools and MATs clear, predictable budgeting with no added charges.

Q: Is the chair easy to clean?

A: Very—its stain-resistant, non-porous shell wipes clean quickly using mild detergents, ideal for glue, paint and snack-time spills.

Q: Can the Dark Grey chairs be stacked?

A: Yes—Postura+ chairs stack up to 12 high, helping schools make the most of space in classrooms, halls and multi-use areas.

Q: Are they suitable for outdoor learning?

A: The UV-stable finish allows for occasional protected outdoor use, although indoor storage is recommended for best longevity.

Q: What does the 20-year warranty cover?

A: The warranty protects against material defects and structural issues, giving long-term peace of mind for schools and MATs.

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