A navy blue plastic classroom chair arranged in a quiet study room with open bookshelves, a modern desk, and light wood flooring for a calm academic setting.
Dark blue Postura+ chair with a contoured seat and sturdy legs, built for long-term use in classrooms and public spaces.
KI Europe dark blue chair with promotional banners and a circular inset showing stackable multicoloured chairs.
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 Blue Postura+ Chair (350mm, Ages 6–8)

The Dark Blue Postura+ 350mm chair pairs a timeless school colour with robust ergonomics for KS2 pupils. Designed specifically for children aged 6–8, it helps maintain healthy sitting posture, dependable comfort and a smart, cohesive look across primary classrooms and shared spaces.

Ergonomically Sized for KS2

  • 350mm seat height aligned with DfE size mark 3 for ages 6–8
  • Curved backrest shaped to support natural spinal alignment
  • Waterfall front edge reduces pressure on legs during lessons

Built for Everyday Primary Use

  • One-piece polypropylene shell with no fastenings to loosen
  • Gas-injected legs improve rigidity and long-term durability
  • Lightweight 2.34kg chair with an integrated handle for easy repositioning

Deep Blue for Smart, Cohesive Classrooms

The Dark Blue finish works seamlessly with traditional school branding and modern classroom palettes. Combined with a stain-resistant surface and integrated ventilation window, it helps keep learning spaces looking tidy, professional and comfortable for pupils day after day.

Why Cobolt: Experience, Care & Free Delivery

  • Over 50 years of expertise in education and public-sector furniture
  • Personal account management to guide you from enquiry to aftercare
  • Free UK mainland delivery on every Postura+ order
  • Clear, proactive communication that reduces workload for busy school teams

Where the Dark Blue Postura+ Chair Performs Best

The Dark Blue Postura+ 350mm chair is well suited to KS2 classrooms, ICT suites, libraries, language rooms, SEND-support spaces and multi-use primary environments. Its classic colour keeps interiors neat and coordinated, while the Postura+ shell delivers reliable comfort and durability in high-traffic settings.

Key Features

  • 350mm seat height – sized for pupils aged 6–8.
  • One-piece polypropylene shell – no loose joints or screws to tighten.
  • 30% recycled high-impact polypropylene – durable, sustainable and lightweight.
  • Gas-injected legs – reinforced to withstand daily KS2 use.
  • Ventilation window – helps pupils stay cool and comfortable during lessons.
  • Anti-static & anti-rocking design – supports safer, more stable classroom behaviour.
  • Stain-resistant, non-porous surface – wipes clean quickly with standard school cleaners.
  • UV-stable Dark Blue finish – suitable for occasional sheltered outdoor learning.
  • Stacks up to 12 chairs – ideal for flexible, multi-use classrooms and halls.
20-year warranty icon
20-year warranty
Free delivery icon
Free UK mainland delivery
UK manufactured icon
UK manufactured
BS EN 1729 compliant icon
BS EN 1729 compliant

The Cobolt Advantage

  • Free UK mainland delivery on all Postura+ classroom chairs.
  • Account-managed service providing a single, knowledgeable point of contact.
  • 50-year heritage helping schools, MATs and public-sector clients specify correctly first time.
  • Low-stress procurement with clear specifications, honest lead times and proactive updates.

Safety & Warranty for Dark Blue Postura+ 350mm Chairs

  • BS EN 1729–1:2015 certified for pupil ergonomics and posture support
  • BS EN 1729–2:2023 compliant for strength, durability and stability
  • Anti-rocking base geometry helps minimise tipping risk in KS2 environments
  • Stain-resistant polypropylene shell supports high classroom hygiene standards
  • 20-year structural and material performance warranty for long-term assurance

The Dark Blue Postura+ 350mm chair is engineered to meet KS2 ergonomic guidance while providing the strength and practicality required for daily school use. These specifications support accurate planning for classrooms, ICT spaces and shared learning environments.

Dimensions
645mm (H) × 430mm (W) × 420mm (D)
Weight
2.34kg
Warranty
20 years
Specification
Details
Purpose / Benefit
Seat Height
350mm
Ergonomic height for pupils aged 6–8 (DfE size mark 3)
Material
30% recycled high-impact polypropylene
Lightweight, durable and easy to maintain
Construction
One-piece injection mould with gas-injected legs
Eliminates loose fixings and improves long-term strength
Ventilation
Back ventilation window
Supports airflow and pupil comfort during lessons
Edge Profile
Waterfall front edge
Helps reduce pressure on legs during prolonged sitting
Anti-static / Anti-rocking
Yes
Improves safety and reduces unwanted movement in class
Stackability
Up to 12 chairs
Supports multi-use spaces and efficient storage
Outdoor Suitability
UV filter
Suitable for occasional use in sheltered outdoor areas
Compliance
BS EN 1729–1:2015 / BS EN 1729–2:2023
Meets UK ergonomic, safety and stability standards
Colour
Dark Blue
Traditional school shade suited to classic and modern schemes

Dimensions follow DfE size mark 3 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 Blue Postura+ 350mm Classroom Chair (Ages 6–8)

Q: What age range is the Dark Blue 350mm Postura+ chair suitable for?

A: It is designed for children aged approximately 6–8 years and follows DfE size mark 3 guidance for KS2 seating.

Q: Why choose the Dark Blue colour for our school?

A: Dark Blue is a classic school shade that works well with uniforms and branding, creating a cohesive, professional classroom look.

Q: Are these chairs strong enough for daily KS2 use?

A: Yes—the one-piece shell, gas-injected legs and high-impact polypropylene are built for intensive, day-to-day primary use.

Q: Do you provide free delivery on Dark Blue Postura+ chairs?

A: Yes—Cobolt offers free UK mainland delivery on all Postura+ chairs, helping schools maximise their furniture budgets.

Q: Can these chairs be stacked for storage?

A: They can be stacked up to 12 high, making them ideal for multi-use classrooms, halls and flexible layouts.

Q: Are they suitable for ICT and library spaces?

A: Yes—ergonomic shaping, neutral tonal styling and easy-clean surfaces make them ideal for ICT suites, libraries and quiet study areas.

Q: Can these chairs be used outdoors on occasion?

A: The UV-stable finish allows for occasional use in sheltered outdoor learning spaces, although indoor storage is recommended for longevity.

Q: What does the 20-year warranty cover?

A: The warranty covers structural integrity and material performance under normal educational use, reflecting the long-term durability of the Postura+ range.

Overview

Product Overview: Dark Blue Postura+ Chair (350mm, Ages 6–8)

The Dark Blue Postura+ 350mm chair pairs a timeless school colour with robust ergonomics for KS2 pupils. Designed specifically for children aged 6–8, it helps maintain healthy sitting posture, dependable comfort and a smart, cohesive look across primary classrooms and shared spaces.

Ergonomically Sized for KS2

  • 350mm seat height aligned with DfE size mark 3 for ages 6–8
  • Curved backrest shaped to support natural spinal alignment
  • Waterfall front edge reduces pressure on legs during lessons

Built for Everyday Primary Use

  • One-piece polypropylene shell with no fastenings to loosen
  • Gas-injected legs improve rigidity and long-term durability
  • Lightweight 2.34kg chair with an integrated handle for easy repositioning

Deep Blue for Smart, Cohesive Classrooms

The Dark Blue finish works seamlessly with traditional school branding and modern classroom palettes. Combined with a stain-resistant surface and integrated ventilation window, it helps keep learning spaces looking tidy, professional and comfortable for pupils day after day.

Why Cobolt: Experience, Care & Free Delivery

  • Over 50 years of expertise in education and public-sector furniture
  • Personal account management to guide you from enquiry to aftercare
  • Free UK mainland delivery on every Postura+ order
  • Clear, proactive communication that reduces workload for busy school teams

Features & Benefits

Where the Dark Blue Postura+ Chair Performs Best

The Dark Blue Postura+ 350mm chair is well suited to KS2 classrooms, ICT suites, libraries, language rooms, SEND-support spaces and multi-use primary environments. Its classic colour keeps interiors neat and coordinated, while the Postura+ shell delivers reliable comfort and durability in high-traffic settings.

Key Features

  • 350mm seat height – sized for pupils aged 6–8.
  • One-piece polypropylene shell – no loose joints or screws to tighten.
  • 30% recycled high-impact polypropylene – durable, sustainable and lightweight.
  • Gas-injected legs – reinforced to withstand daily KS2 use.
  • Ventilation window – helps pupils stay cool and comfortable during lessons.
  • Anti-static & anti-rocking design – supports safer, more stable classroom behaviour.
  • Stain-resistant, non-porous surface – wipes clean quickly with standard school cleaners.
  • UV-stable Dark Blue finish – suitable for occasional sheltered outdoor learning.
  • Stacks up to 12 chairs – ideal for flexible, multi-use classrooms and halls.
20-year warranty icon
20-year warranty
Free delivery icon
Free UK mainland delivery
UK manufactured icon
UK manufactured
BS EN 1729 compliant icon
BS EN 1729 compliant

The Cobolt Advantage

  • Free UK mainland delivery on all Postura+ classroom chairs.
  • Account-managed service providing a single, knowledgeable point of contact.
  • 50-year heritage helping schools, MATs and public-sector clients specify correctly first time.
  • Low-stress procurement with clear specifications, honest lead times and proactive updates.

Safety & Warranty

Safety & Warranty for Dark Blue Postura+ 350mm Chairs

  • BS EN 1729–1:2015 certified for pupil ergonomics and posture support
  • BS EN 1729–2:2023 compliant for strength, durability and stability
  • Anti-rocking base geometry helps minimise tipping risk in KS2 environments
  • Stain-resistant polypropylene shell supports high classroom hygiene standards
  • 20-year structural and material performance warranty for long-term assurance

Specification Dimensions

The Dark Blue Postura+ 350mm chair is engineered to meet KS2 ergonomic guidance while providing the strength and practicality required for daily school use. These specifications support accurate planning for classrooms, ICT spaces and shared learning environments.

Dimensions
645mm (H) × 430mm (W) × 420mm (D)
Weight
2.34kg
Warranty
20 years
Specification
Details
Purpose / Benefit
Seat Height
350mm
Ergonomic height for pupils aged 6–8 (DfE size mark 3)
Material
30% recycled high-impact polypropylene
Lightweight, durable and easy to maintain
Construction
One-piece injection mould with gas-injected legs
Eliminates loose fixings and improves long-term strength
Ventilation
Back ventilation window
Supports airflow and pupil comfort during lessons
Edge Profile
Waterfall front edge
Helps reduce pressure on legs during prolonged sitting
Anti-static / Anti-rocking
Yes
Improves safety and reduces unwanted movement in class
Stackability
Up to 12 chairs
Supports multi-use spaces and efficient storage
Outdoor Suitability
UV filter
Suitable for occasional use in sheltered outdoor areas
Compliance
BS EN 1729–1:2015 / BS EN 1729–2:2023
Meets UK ergonomic, safety and stability standards
Colour
Dark Blue
Traditional school shade suited to classic and modern schemes

Dimensions follow DfE size mark 3 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 Blue Postura+ 350mm Classroom Chair (Ages 6–8)

Q: What age range is the Dark Blue 350mm Postura+ chair suitable for?

A: It is designed for children aged approximately 6–8 years and follows DfE size mark 3 guidance for KS2 seating.

Q: Why choose the Dark Blue colour for our school?

A: Dark Blue is a classic school shade that works well with uniforms and branding, creating a cohesive, professional classroom look.

Q: Are these chairs strong enough for daily KS2 use?

A: Yes—the one-piece shell, gas-injected legs and high-impact polypropylene are built for intensive, day-to-day primary use.

Q: Do you provide free delivery on Dark Blue Postura+ chairs?

A: Yes—Cobolt offers free UK mainland delivery on all Postura+ chairs, helping schools maximise their furniture budgets.

Q: Can these chairs be stacked for storage?

A: They can be stacked up to 12 high, making them ideal for multi-use classrooms, halls and flexible layouts.

Q: Are they suitable for ICT and library spaces?

A: Yes—ergonomic shaping, neutral tonal styling and easy-clean surfaces make them ideal for ICT suites, libraries and quiet study areas.

Q: Can these chairs be used outdoors on occasion?

A: The UV-stable finish allows for occasional use in sheltered outdoor learning spaces, although indoor storage is recommended for longevity.

Q: What does the 20-year warranty cover?

A: The warranty covers structural integrity and material performance under normal educational use, reflecting the long-term durability of the Postura+ range.

Dark Blue Postura+ Ergonomic One Piece Classroom Chair - 6-8 Years

Product code: KI68DB
The Dark Blue Postura+ 350mm Classroom Chair offers a classic, education-ready colour combined with the trusted ergonomic design of the Postura+ rang...

Inc VAT

Exc VAT

£36.00

£30.00

Height by Age - 6-8 Years
Colours - Dark Blue

Request a Quote

You can add multiple configured items and submit once.

How it works
  1. Select all required options — Choose your size, finish, edge colour, frame colour, and any add-ons.
  2. Add to your Quote Basket — Click "Request Quote" to save this exact configuration.
  3. Keep adding items — Add as many products, sizes, or colour options as you need. Each item is saved separately in your Quote Basket.
  4. Submit once — Submit the Quote Basket one time — we'll receive everything together.
In Stock - UK Dispatch

Buy at discounted prices

Quantity Discount Save
1 - 29 0% off £0.00
30 + 10% off £3.60

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: Dark Blue Postura+ Chair (350mm, Ages 6–8)

The Dark Blue Postura+ 350mm chair pairs a timeless school colour with robust ergonomics for KS2 pupils. Designed specifically for children aged 6–8, it helps maintain healthy sitting posture, dependable comfort and a smart, cohesive look across primary classrooms and shared spaces.

Ergonomically Sized for KS2

  • 350mm seat height aligned with DfE size mark 3 for ages 6–8
  • Curved backrest shaped to support natural spinal alignment
  • Waterfall front edge reduces pressure on legs during lessons

Built for Everyday Primary Use

  • One-piece polypropylene shell with no fastenings to loosen
  • Gas-injected legs improve rigidity and long-term durability
  • Lightweight 2.34kg chair with an integrated handle for easy repositioning

Deep Blue for Smart, Cohesive Classrooms

The Dark Blue finish works seamlessly with traditional school branding and modern classroom palettes. Combined with a stain-resistant surface and integrated ventilation window, it helps keep learning spaces looking tidy, professional and comfortable for pupils day after day.

Why Cobolt: Experience, Care & Free Delivery

  • Over 50 years of expertise in education and public-sector furniture
  • Personal account management to guide you from enquiry to aftercare
  • Free UK mainland delivery on every Postura+ order
  • Clear, proactive communication that reduces workload for busy school teams

Where the Dark Blue Postura+ Chair Performs Best

The Dark Blue Postura+ 350mm chair is well suited to KS2 classrooms, ICT suites, libraries, language rooms, SEND-support spaces and multi-use primary environments. Its classic colour keeps interiors neat and coordinated, while the Postura+ shell delivers reliable comfort and durability in high-traffic settings.

Key Features

  • 350mm seat height – sized for pupils aged 6–8.
  • One-piece polypropylene shell – no loose joints or screws to tighten.
  • 30% recycled high-impact polypropylene – durable, sustainable and lightweight.
  • Gas-injected legs – reinforced to withstand daily KS2 use.
  • Ventilation window – helps pupils stay cool and comfortable during lessons.
  • Anti-static & anti-rocking design – supports safer, more stable classroom behaviour.
  • Stain-resistant, non-porous surface – wipes clean quickly with standard school cleaners.
  • UV-stable Dark Blue finish – suitable for occasional sheltered outdoor learning.
  • Stacks up to 12 chairs – ideal for flexible, multi-use classrooms and halls.
20-year warranty icon
20-year warranty
Free delivery icon
Free UK mainland delivery
UK manufactured icon
UK manufactured
BS EN 1729 compliant icon
BS EN 1729 compliant

The Cobolt Advantage

  • Free UK mainland delivery on all Postura+ classroom chairs.
  • Account-managed service providing a single, knowledgeable point of contact.
  • 50-year heritage helping schools, MATs and public-sector clients specify correctly first time.
  • Low-stress procurement with clear specifications, honest lead times and proactive updates.

Safety & Warranty for Dark Blue Postura+ 350mm Chairs

  • BS EN 1729–1:2015 certified for pupil ergonomics and posture support
  • BS EN 1729–2:2023 compliant for strength, durability and stability
  • Anti-rocking base geometry helps minimise tipping risk in KS2 environments
  • Stain-resistant polypropylene shell supports high classroom hygiene standards
  • 20-year structural and material performance warranty for long-term assurance

The Dark Blue Postura+ 350mm chair is engineered to meet KS2 ergonomic guidance while providing the strength and practicality required for daily school use. These specifications support accurate planning for classrooms, ICT spaces and shared learning environments.

Dimensions
645mm (H) × 430mm (W) × 420mm (D)
Weight
2.34kg
Warranty
20 years
Specification
Details
Purpose / Benefit
Seat Height
350mm
Ergonomic height for pupils aged 6–8 (DfE size mark 3)
Material
30% recycled high-impact polypropylene
Lightweight, durable and easy to maintain
Construction
One-piece injection mould with gas-injected legs
Eliminates loose fixings and improves long-term strength
Ventilation
Back ventilation window
Supports airflow and pupil comfort during lessons
Edge Profile
Waterfall front edge
Helps reduce pressure on legs during prolonged sitting
Anti-static / Anti-rocking
Yes
Improves safety and reduces unwanted movement in class
Stackability
Up to 12 chairs
Supports multi-use spaces and efficient storage
Outdoor Suitability
UV filter
Suitable for occasional use in sheltered outdoor areas
Compliance
BS EN 1729–1:2015 / BS EN 1729–2:2023
Meets UK ergonomic, safety and stability standards
Colour
Dark Blue
Traditional school shade suited to classic and modern schemes

Dimensions follow DfE size mark 3 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 Blue Postura+ 350mm Classroom Chair (Ages 6–8)

Q: What age range is the Dark Blue 350mm Postura+ chair suitable for?

A: It is designed for children aged approximately 6–8 years and follows DfE size mark 3 guidance for KS2 seating.

Q: Why choose the Dark Blue colour for our school?

A: Dark Blue is a classic school shade that works well with uniforms and branding, creating a cohesive, professional classroom look.

Q: Are these chairs strong enough for daily KS2 use?

A: Yes—the one-piece shell, gas-injected legs and high-impact polypropylene are built for intensive, day-to-day primary use.

Q: Do you provide free delivery on Dark Blue Postura+ chairs?

A: Yes—Cobolt offers free UK mainland delivery on all Postura+ chairs, helping schools maximise their furniture budgets.

Q: Can these chairs be stacked for storage?

A: They can be stacked up to 12 high, making them ideal for multi-use classrooms, halls and flexible layouts.

Q: Are they suitable for ICT and library spaces?

A: Yes—ergonomic shaping, neutral tonal styling and easy-clean surfaces make them ideal for ICT suites, libraries and quiet study areas.

Q: Can these chairs be used outdoors on occasion?

A: The UV-stable finish allows for occasional use in sheltered outdoor learning spaces, although indoor storage is recommended for longevity.

Q: What does the 20-year warranty cover?

A: The warranty covers structural integrity and material performance under normal educational use, reflecting the long-term durability of the Postura+ range.

Overview

Product Overview: Dark Blue Postura+ Chair (350mm, Ages 6–8)

The Dark Blue Postura+ 350mm chair pairs a timeless school colour with robust ergonomics for KS2 pupils. Designed specifically for children aged 6–8, it helps maintain healthy sitting posture, dependable comfort and a smart, cohesive look across primary classrooms and shared spaces.

Ergonomically Sized for KS2

  • 350mm seat height aligned with DfE size mark 3 for ages 6–8
  • Curved backrest shaped to support natural spinal alignment
  • Waterfall front edge reduces pressure on legs during lessons

Built for Everyday Primary Use

  • One-piece polypropylene shell with no fastenings to loosen
  • Gas-injected legs improve rigidity and long-term durability
  • Lightweight 2.34kg chair with an integrated handle for easy repositioning

Deep Blue for Smart, Cohesive Classrooms

The Dark Blue finish works seamlessly with traditional school branding and modern classroom palettes. Combined with a stain-resistant surface and integrated ventilation window, it helps keep learning spaces looking tidy, professional and comfortable for pupils day after day.

Why Cobolt: Experience, Care & Free Delivery

  • Over 50 years of expertise in education and public-sector furniture
  • Personal account management to guide you from enquiry to aftercare
  • Free UK mainland delivery on every Postura+ order
  • Clear, proactive communication that reduces workload for busy school teams

Features & Benefits

Where the Dark Blue Postura+ Chair Performs Best

The Dark Blue Postura+ 350mm chair is well suited to KS2 classrooms, ICT suites, libraries, language rooms, SEND-support spaces and multi-use primary environments. Its classic colour keeps interiors neat and coordinated, while the Postura+ shell delivers reliable comfort and durability in high-traffic settings.

Key Features

  • 350mm seat height – sized for pupils aged 6–8.
  • One-piece polypropylene shell – no loose joints or screws to tighten.
  • 30% recycled high-impact polypropylene – durable, sustainable and lightweight.
  • Gas-injected legs – reinforced to withstand daily KS2 use.
  • Ventilation window – helps pupils stay cool and comfortable during lessons.
  • Anti-static & anti-rocking design – supports safer, more stable classroom behaviour.
  • Stain-resistant, non-porous surface – wipes clean quickly with standard school cleaners.
  • UV-stable Dark Blue finish – suitable for occasional sheltered outdoor learning.
  • Stacks up to 12 chairs – ideal for flexible, multi-use classrooms and halls.
20-year warranty icon
20-year warranty
Free delivery icon
Free UK mainland delivery
UK manufactured icon
UK manufactured
BS EN 1729 compliant icon
BS EN 1729 compliant

The Cobolt Advantage

  • Free UK mainland delivery on all Postura+ classroom chairs.
  • Account-managed service providing a single, knowledgeable point of contact.
  • 50-year heritage helping schools, MATs and public-sector clients specify correctly first time.
  • Low-stress procurement with clear specifications, honest lead times and proactive updates.

Safety & Warranty

Safety & Warranty for Dark Blue Postura+ 350mm Chairs

  • BS EN 1729–1:2015 certified for pupil ergonomics and posture support
  • BS EN 1729–2:2023 compliant for strength, durability and stability
  • Anti-rocking base geometry helps minimise tipping risk in KS2 environments
  • Stain-resistant polypropylene shell supports high classroom hygiene standards
  • 20-year structural and material performance warranty for long-term assurance

Specification Dimensions

The Dark Blue Postura+ 350mm chair is engineered to meet KS2 ergonomic guidance while providing the strength and practicality required for daily school use. These specifications support accurate planning for classrooms, ICT spaces and shared learning environments.

Dimensions
645mm (H) × 430mm (W) × 420mm (D)
Weight
2.34kg
Warranty
20 years
Specification
Details
Purpose / Benefit
Seat Height
350mm
Ergonomic height for pupils aged 6–8 (DfE size mark 3)
Material
30% recycled high-impact polypropylene
Lightweight, durable and easy to maintain
Construction
One-piece injection mould with gas-injected legs
Eliminates loose fixings and improves long-term strength
Ventilation
Back ventilation window
Supports airflow and pupil comfort during lessons
Edge Profile
Waterfall front edge
Helps reduce pressure on legs during prolonged sitting
Anti-static / Anti-rocking
Yes
Improves safety and reduces unwanted movement in class
Stackability
Up to 12 chairs
Supports multi-use spaces and efficient storage
Outdoor Suitability
UV filter
Suitable for occasional use in sheltered outdoor areas
Compliance
BS EN 1729–1:2015 / BS EN 1729–2:2023
Meets UK ergonomic, safety and stability standards
Colour
Dark Blue
Traditional school shade suited to classic and modern schemes

Dimensions follow DfE size mark 3 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 Blue Postura+ 350mm Classroom Chair (Ages 6–8)

Q: What age range is the Dark Blue 350mm Postura+ chair suitable for?

A: It is designed for children aged approximately 6–8 years and follows DfE size mark 3 guidance for KS2 seating.

Q: Why choose the Dark Blue colour for our school?

A: Dark Blue is a classic school shade that works well with uniforms and branding, creating a cohesive, professional classroom look.

Q: Are these chairs strong enough for daily KS2 use?

A: Yes—the one-piece shell, gas-injected legs and high-impact polypropylene are built for intensive, day-to-day primary use.

Q: Do you provide free delivery on Dark Blue Postura+ chairs?

A: Yes—Cobolt offers free UK mainland delivery on all Postura+ chairs, helping schools maximise their furniture budgets.

Q: Can these chairs be stacked for storage?

A: They can be stacked up to 12 high, making them ideal for multi-use classrooms, halls and flexible layouts.

Q: Are they suitable for ICT and library spaces?

A: Yes—ergonomic shaping, neutral tonal styling and easy-clean surfaces make them ideal for ICT suites, libraries and quiet study areas.

Q: Can these chairs be used outdoors on occasion?

A: The UV-stable finish allows for occasional use in sheltered outdoor learning spaces, although indoor storage is recommended for longevity.

Q: What does the 20-year warranty cover?

A: The warranty covers structural integrity and material performance under normal educational use, reflecting the long-term durability of the Postura+ range.

You may also like

Recently Viewed