A sleek black plastic classroom chair in a minimalist learning environment, paired with light wood desks and a smooth concrete floor for a modern aesthetic.
Black Postura+ chair with a sleek, professional look and molded plastic construction, ideal for conference and classroom settings.
KI Europe black chair with feature highlights and a circular image of stacked chairs in a full colour range.
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: Jet Black Postura+ Chair (430mm, Ages 11–14)

The Jet Black Postura+ 430mm chair brings a touch of executive style to secondary education. Moving away from traditional bright classroom colours, this finish is designed for mature learning environments, multi-purpose performance spaces, and high-traffic exam halls where durability and discretion are key.

Ergonomics for Mature Students

  • 430mm seat height (DfE Size 6) supports the posture of 11–14+ year olds
  • Sculpted lumbar curvature encourages an upright, focused sitting position
  • Waterfall seat edge improves lower limb circulation during long seminars

Performance & Durability

  • Jet Black finish is the ultimate low-maintenance option, concealing daily wear
  • Single-piece gas injection moulding ensures zero breakage points
  • Ideal for 'Black Box' drama studios where furniture needs to be unobtrusive

Versatile Application

Black offers unmatched versatility. It looks professional in a staff meeting, blends into the background during a drama performance, and provides a disciplined uniformity in exam halls.

The Cobolt Advantage

  • Free UK Mainland Delivery: We absorb the logistics costs to protect your budget
  • UK Manufacturing: Built to British Standards with a secure domestic supply chain
  • Seamless Logistics: Deliveries coordinated to suit your facility's timetable
  • 20-Year Warranty: A guarantee of longevity for your peace of mind

Where is this Black stacking chair used?

The Black Postura+ is the choice for environments requiring a mature or neutral aesthetic. It is heavily specified for Drama and Performing Arts studios (due to low light reflection), Sixth Form study areas, and Staff Canteens. It is also the go-to choice for large assembly halls that host community events, offering a professional look for non-school users.

Key Features

  • Compliance Ready (Size 6) – 430mm seat height meets BS EN 1729 standards for the 11-14 year age group.
  • Space Efficient – Vertically stacks 12 high, allowing studios and halls to be cleared in minutes.
  • Studio Ready – The matte Black finish minimizes light reflection, making it perfect for stage use.
  • Zero Maintenance – One-piece construction means no screws to tighten and no fabric to tear.
  • Safety Engineered – Anti-rock rear legs prevent tipping, ensuring safety in active environments.
  • Hygiene Ready – The smooth, non-porous surface is easy to sanitize and resists ink and stains.
  • Eco-Friendly – Manufactured in the UK using 30% recycled content and is 100% recyclable.
  • Robust Build – Lightweight at 3.6kg but tested to support a static load of 204kg.
20-year warranty icon
20-year warranty
Free delivery icon
Free UK Mainland Delivery
UK manufactured icon
UK manufactured

Cobolt Service & Ethos: Here to Make It Easy

  • Free Delivery (UK Mainland): We keep pricing simple and transparent. The price includes shipping to your door.
  • Personal Account Management: A dedicated expert will handle your order from enquiry to completion.
  • Flexible Logistics: We understand school schedules and will arrange delivery to suit your needs.
  • Proven Durability: We only supply furniture that survives the rigours of the UK education sector.

Built for Safety. Backed for Years.

  • All Cobolt products are vetted for institutional safety compliance. This chair is certified to BS EN 1729 Part 1 & 2, ensuring it meets strict ergonomic and strength standards for schools.
  • We design for safety: the anti-rocking mechanism prevents tipping accidents, and the anti-static finish makes it safe for use in server rooms and IT suites.
  • Hygiene is simple. The chemically resistant polypropylene can be cleaned with industrial detergents without degrading the finish.
  • We protect your budget with a 20-year manufacturer's warranty. This covers the structural shell and legs against breakage for two decades.
  • The chair is tested to support a static weight of 204kg, making it a reliable choice for students, staff, and visitors alike.

The Jet Black Postura+ 430mm chair offers a professional, heavy-duty seating solution for Year 7–9 pupils and mixed-use spaces. These specifications ensure it meets the diverse demands of modern educational campuses.

Dimensions
760mm (H) × 480mm (W) × 505mm (D)
Weight
3.6kg
Warranty
20 years
Specification
Details
Purpose / Benefit
Seat Height
430mm
DfE Size 6 standard for ages 11–14
Material
30% recycled high-impact polypropylene
Sustainable, durable, and wipe-clean
Construction
Single-piece gas injection mould
No screws or rivets; zero maintenance
Ventilation
Lumbar ventilation window
Prevents overheating during long events
Edge Profile
Waterfall seat edge
Maintains circulation and comfort
Anti-static / Anti-rocking
Yes
Safe for IT areas; prevents tipping
Stackability
Up to 12 chairs
Enables rapid room reconfiguration
Weight Capacity
204kg
Robust rating suitable for adults and students
Outdoor Suitability
UV filter
Resists fading in sunlight
Compliance
BS EN 1729–1:2015 / BS EN 1729–2:2023
Certified for UK educational use
Colour
Jet Black
Professional finish for drama, staff, and exams

Dimensions strictly follow DfE size mark guidelines. Minor variations may occur due to 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: The Best Black Chair for Schools and Colleges

Q: Is delivery included in the price?

A: Yes, Free UK Mainland Delivery is included. We cover the transport costs, meaning the price you see is the price you pay, with no hidden freight fees.

Q: Where is the Black chair most commonly used?

A: It is ideal for Drama studios (Black Box spaces) as it doesn't reflect light. It is also very popular for Sixth Form centres, Staff rooms, and Conference halls due to its mature aesthetic.

Q: Is it tough enough for older students?

A: Absolutely. It is tested to support 204kg (32 stone) and is virtually unbreakable, making it perfect for Year 7 right through to Sixth Form and adult use.

Q: How high can these chairs be stacked?

A: You can safely stack them 12 high vertically on the floor. This allows flexible use of space in halls and studios.

Q: Is this size suitable for 11-14 year olds?

A: Yes. The 430mm seat height is the BS EN 1729 Size 6 standard, ergonomically designed for the 11-14 age group.

Q: Does the black finish show dust?

A: The material is anti-static, which repels dust. The textured surface is also excellent at hiding scuffs and scratches compared to lighter colours.

Q: Does it have a warranty?

A: Yes, it comes with a comprehensive 20-year warranty on the shell and legs, guaranteeing your investment for decades.

Q: Can I use this chair outdoors?

A: Yes, the polypropylene contains a UV stabiliser to prevent the black colour from fading, making it suitable for outdoor events.

Q: Why choose Cobolt Furniture?

A: We are B2B specialists. We offer Free UK Mainland Delivery, expert advice, and genuine UK-manufactured products with reliable lead times.

Overview

Product Overview: Jet Black Postura+ Chair (430mm, Ages 11–14)

The Jet Black Postura+ 430mm chair brings a touch of executive style to secondary education. Moving away from traditional bright classroom colours, this finish is designed for mature learning environments, multi-purpose performance spaces, and high-traffic exam halls where durability and discretion are key.

Ergonomics for Mature Students

  • 430mm seat height (DfE Size 6) supports the posture of 11–14+ year olds
  • Sculpted lumbar curvature encourages an upright, focused sitting position
  • Waterfall seat edge improves lower limb circulation during long seminars

Performance & Durability

  • Jet Black finish is the ultimate low-maintenance option, concealing daily wear
  • Single-piece gas injection moulding ensures zero breakage points
  • Ideal for 'Black Box' drama studios where furniture needs to be unobtrusive

Versatile Application

Black offers unmatched versatility. It looks professional in a staff meeting, blends into the background during a drama performance, and provides a disciplined uniformity in exam halls.

The Cobolt Advantage

  • Free UK Mainland Delivery: We absorb the logistics costs to protect your budget
  • UK Manufacturing: Built to British Standards with a secure domestic supply chain
  • Seamless Logistics: Deliveries coordinated to suit your facility's timetable
  • 20-Year Warranty: A guarantee of longevity for your peace of mind

Features & Benefits

Where is this Black stacking chair used?

The Black Postura+ is the choice for environments requiring a mature or neutral aesthetic. It is heavily specified for Drama and Performing Arts studios (due to low light reflection), Sixth Form study areas, and Staff Canteens. It is also the go-to choice for large assembly halls that host community events, offering a professional look for non-school users.

Key Features

  • Compliance Ready (Size 6) – 430mm seat height meets BS EN 1729 standards for the 11-14 year age group.
  • Space Efficient – Vertically stacks 12 high, allowing studios and halls to be cleared in minutes.
  • Studio Ready – The matte Black finish minimizes light reflection, making it perfect for stage use.
  • Zero Maintenance – One-piece construction means no screws to tighten and no fabric to tear.
  • Safety Engineered – Anti-rock rear legs prevent tipping, ensuring safety in active environments.
  • Hygiene Ready – The smooth, non-porous surface is easy to sanitize and resists ink and stains.
  • Eco-Friendly – Manufactured in the UK using 30% recycled content and is 100% recyclable.
  • Robust Build – Lightweight at 3.6kg but tested to support a static load of 204kg.
20-year warranty icon
20-year warranty
Free delivery icon
Free UK Mainland Delivery
UK manufactured icon
UK manufactured

Cobolt Service & Ethos: Here to Make It Easy

  • Free Delivery (UK Mainland): We keep pricing simple and transparent. The price includes shipping to your door.
  • Personal Account Management: A dedicated expert will handle your order from enquiry to completion.
  • Flexible Logistics: We understand school schedules and will arrange delivery to suit your needs.
  • Proven Durability: We only supply furniture that survives the rigours of the UK education sector.

Safety & Warranty

Built for Safety. Backed for Years.

  • All Cobolt products are vetted for institutional safety compliance. This chair is certified to BS EN 1729 Part 1 & 2, ensuring it meets strict ergonomic and strength standards for schools.
  • We design for safety: the anti-rocking mechanism prevents tipping accidents, and the anti-static finish makes it safe for use in server rooms and IT suites.
  • Hygiene is simple. The chemically resistant polypropylene can be cleaned with industrial detergents without degrading the finish.
  • We protect your budget with a 20-year manufacturer's warranty. This covers the structural shell and legs against breakage for two decades.
  • The chair is tested to support a static weight of 204kg, making it a reliable choice for students, staff, and visitors alike.

Specification Dimensions

The Jet Black Postura+ 430mm chair offers a professional, heavy-duty seating solution for Year 7–9 pupils and mixed-use spaces. These specifications ensure it meets the diverse demands of modern educational campuses.

Dimensions
760mm (H) × 480mm (W) × 505mm (D)
Weight
3.6kg
Warranty
20 years
Specification
Details
Purpose / Benefit
Seat Height
430mm
DfE Size 6 standard for ages 11–14
Material
30% recycled high-impact polypropylene
Sustainable, durable, and wipe-clean
Construction
Single-piece gas injection mould
No screws or rivets; zero maintenance
Ventilation
Lumbar ventilation window
Prevents overheating during long events
Edge Profile
Waterfall seat edge
Maintains circulation and comfort
Anti-static / Anti-rocking
Yes
Safe for IT areas; prevents tipping
Stackability
Up to 12 chairs
Enables rapid room reconfiguration
Weight Capacity
204kg
Robust rating suitable for adults and students
Outdoor Suitability
UV filter
Resists fading in sunlight
Compliance
BS EN 1729–1:2015 / BS EN 1729–2:2023
Certified for UK educational use
Colour
Jet Black
Professional finish for drama, staff, and exams

Dimensions strictly follow DfE size mark guidelines. Minor variations may occur due to 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: The Best Black Chair for Schools and Colleges

Q: Is delivery included in the price?

A: Yes, Free UK Mainland Delivery is included. We cover the transport costs, meaning the price you see is the price you pay, with no hidden freight fees.

Q: Where is the Black chair most commonly used?

A: It is ideal for Drama studios (Black Box spaces) as it doesn't reflect light. It is also very popular for Sixth Form centres, Staff rooms, and Conference halls due to its mature aesthetic.

Q: Is it tough enough for older students?

A: Absolutely. It is tested to support 204kg (32 stone) and is virtually unbreakable, making it perfect for Year 7 right through to Sixth Form and adult use.

Q: How high can these chairs be stacked?

A: You can safely stack them 12 high vertically on the floor. This allows flexible use of space in halls and studios.

Q: Is this size suitable for 11-14 year olds?

A: Yes. The 430mm seat height is the BS EN 1729 Size 6 standard, ergonomically designed for the 11-14 age group.

Q: Does the black finish show dust?

A: The material is anti-static, which repels dust. The textured surface is also excellent at hiding scuffs and scratches compared to lighter colours.

Q: Does it have a warranty?

A: Yes, it comes with a comprehensive 20-year warranty on the shell and legs, guaranteeing your investment for decades.

Q: Can I use this chair outdoors?

A: Yes, the polypropylene contains a UV stabiliser to prevent the black colour from fading, making it suitable for outdoor events.

Q: Why choose Cobolt Furniture?

A: We are B2B specialists. We offer Free UK Mainland Delivery, expert advice, and genuine UK-manufactured products with reliable lead times.

Black Postura+ Ergonomic One Piece Classroom Chair - 11-14 Years

Product code: KI1114BK
Upgrade your educational spaces with the sleek, professional appeal of the Postura+ Ergonomic Chair in Jet Black. While dimensioned for 11-14 year old...

Inc VAT

Exc VAT

£42.00

£35.00

Height by Age - 11-14 Years
Colours - Black

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Overview

Features

Safety & Warranty

Specifications & Dimensions

Delivery & Returns

Product FAQs

Product Overview: Jet Black Postura+ Chair (430mm, Ages 11–14)

The Jet Black Postura+ 430mm chair brings a touch of executive style to secondary education. Moving away from traditional bright classroom colours, this finish is designed for mature learning environments, multi-purpose performance spaces, and high-traffic exam halls where durability and discretion are key.

Ergonomics for Mature Students

  • 430mm seat height (DfE Size 6) supports the posture of 11–14+ year olds
  • Sculpted lumbar curvature encourages an upright, focused sitting position
  • Waterfall seat edge improves lower limb circulation during long seminars

Performance & Durability

  • Jet Black finish is the ultimate low-maintenance option, concealing daily wear
  • Single-piece gas injection moulding ensures zero breakage points
  • Ideal for 'Black Box' drama studios where furniture needs to be unobtrusive

Versatile Application

Black offers unmatched versatility. It looks professional in a staff meeting, blends into the background during a drama performance, and provides a disciplined uniformity in exam halls.

The Cobolt Advantage

  • Free UK Mainland Delivery: We absorb the logistics costs to protect your budget
  • UK Manufacturing: Built to British Standards with a secure domestic supply chain
  • Seamless Logistics: Deliveries coordinated to suit your facility's timetable
  • 20-Year Warranty: A guarantee of longevity for your peace of mind

Where is this Black stacking chair used?

The Black Postura+ is the choice for environments requiring a mature or neutral aesthetic. It is heavily specified for Drama and Performing Arts studios (due to low light reflection), Sixth Form study areas, and Staff Canteens. It is also the go-to choice for large assembly halls that host community events, offering a professional look for non-school users.

Key Features

  • Compliance Ready (Size 6) – 430mm seat height meets BS EN 1729 standards for the 11-14 year age group.
  • Space Efficient – Vertically stacks 12 high, allowing studios and halls to be cleared in minutes.
  • Studio Ready – The matte Black finish minimizes light reflection, making it perfect for stage use.
  • Zero Maintenance – One-piece construction means no screws to tighten and no fabric to tear.
  • Safety Engineered – Anti-rock rear legs prevent tipping, ensuring safety in active environments.
  • Hygiene Ready – The smooth, non-porous surface is easy to sanitize and resists ink and stains.
  • Eco-Friendly – Manufactured in the UK using 30% recycled content and is 100% recyclable.
  • Robust Build – Lightweight at 3.6kg but tested to support a static load of 204kg.
20-year warranty icon
20-year warranty
Free delivery icon
Free UK Mainland Delivery
UK manufactured icon
UK manufactured

Cobolt Service & Ethos: Here to Make It Easy

  • Free Delivery (UK Mainland): We keep pricing simple and transparent. The price includes shipping to your door.
  • Personal Account Management: A dedicated expert will handle your order from enquiry to completion.
  • Flexible Logistics: We understand school schedules and will arrange delivery to suit your needs.
  • Proven Durability: We only supply furniture that survives the rigours of the UK education sector.

Built for Safety. Backed for Years.

  • All Cobolt products are vetted for institutional safety compliance. This chair is certified to BS EN 1729 Part 1 & 2, ensuring it meets strict ergonomic and strength standards for schools.
  • We design for safety: the anti-rocking mechanism prevents tipping accidents, and the anti-static finish makes it safe for use in server rooms and IT suites.
  • Hygiene is simple. The chemically resistant polypropylene can be cleaned with industrial detergents without degrading the finish.
  • We protect your budget with a 20-year manufacturer's warranty. This covers the structural shell and legs against breakage for two decades.
  • The chair is tested to support a static weight of 204kg, making it a reliable choice for students, staff, and visitors alike.

The Jet Black Postura+ 430mm chair offers a professional, heavy-duty seating solution for Year 7–9 pupils and mixed-use spaces. These specifications ensure it meets the diverse demands of modern educational campuses.

Dimensions
760mm (H) × 480mm (W) × 505mm (D)
Weight
3.6kg
Warranty
20 years
Specification
Details
Purpose / Benefit
Seat Height
430mm
DfE Size 6 standard for ages 11–14
Material
30% recycled high-impact polypropylene
Sustainable, durable, and wipe-clean
Construction
Single-piece gas injection mould
No screws or rivets; zero maintenance
Ventilation
Lumbar ventilation window
Prevents overheating during long events
Edge Profile
Waterfall seat edge
Maintains circulation and comfort
Anti-static / Anti-rocking
Yes
Safe for IT areas; prevents tipping
Stackability
Up to 12 chairs
Enables rapid room reconfiguration
Weight Capacity
204kg
Robust rating suitable for adults and students
Outdoor Suitability
UV filter
Resists fading in sunlight
Compliance
BS EN 1729–1:2015 / BS EN 1729–2:2023
Certified for UK educational use
Colour
Jet Black
Professional finish for drama, staff, and exams

Dimensions strictly follow DfE size mark guidelines. Minor variations may occur due to 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: The Best Black Chair for Schools and Colleges

Q: Is delivery included in the price?

A: Yes, Free UK Mainland Delivery is included. We cover the transport costs, meaning the price you see is the price you pay, with no hidden freight fees.

Q: Where is the Black chair most commonly used?

A: It is ideal for Drama studios (Black Box spaces) as it doesn't reflect light. It is also very popular for Sixth Form centres, Staff rooms, and Conference halls due to its mature aesthetic.

Q: Is it tough enough for older students?

A: Absolutely. It is tested to support 204kg (32 stone) and is virtually unbreakable, making it perfect for Year 7 right through to Sixth Form and adult use.

Q: How high can these chairs be stacked?

A: You can safely stack them 12 high vertically on the floor. This allows flexible use of space in halls and studios.

Q: Is this size suitable for 11-14 year olds?

A: Yes. The 430mm seat height is the BS EN 1729 Size 6 standard, ergonomically designed for the 11-14 age group.

Q: Does the black finish show dust?

A: The material is anti-static, which repels dust. The textured surface is also excellent at hiding scuffs and scratches compared to lighter colours.

Q: Does it have a warranty?

A: Yes, it comes with a comprehensive 20-year warranty on the shell and legs, guaranteeing your investment for decades.

Q: Can I use this chair outdoors?

A: Yes, the polypropylene contains a UV stabiliser to prevent the black colour from fading, making it suitable for outdoor events.

Q: Why choose Cobolt Furniture?

A: We are B2B specialists. We offer Free UK Mainland Delivery, expert advice, and genuine UK-manufactured products with reliable lead times.

Overview

Product Overview: Jet Black Postura+ Chair (430mm, Ages 11–14)

The Jet Black Postura+ 430mm chair brings a touch of executive style to secondary education. Moving away from traditional bright classroom colours, this finish is designed for mature learning environments, multi-purpose performance spaces, and high-traffic exam halls where durability and discretion are key.

Ergonomics for Mature Students

  • 430mm seat height (DfE Size 6) supports the posture of 11–14+ year olds
  • Sculpted lumbar curvature encourages an upright, focused sitting position
  • Waterfall seat edge improves lower limb circulation during long seminars

Performance & Durability

  • Jet Black finish is the ultimate low-maintenance option, concealing daily wear
  • Single-piece gas injection moulding ensures zero breakage points
  • Ideal for 'Black Box' drama studios where furniture needs to be unobtrusive

Versatile Application

Black offers unmatched versatility. It looks professional in a staff meeting, blends into the background during a drama performance, and provides a disciplined uniformity in exam halls.

The Cobolt Advantage

  • Free UK Mainland Delivery: We absorb the logistics costs to protect your budget
  • UK Manufacturing: Built to British Standards with a secure domestic supply chain
  • Seamless Logistics: Deliveries coordinated to suit your facility's timetable
  • 20-Year Warranty: A guarantee of longevity for your peace of mind

Features & Benefits

Where is this Black stacking chair used?

The Black Postura+ is the choice for environments requiring a mature or neutral aesthetic. It is heavily specified for Drama and Performing Arts studios (due to low light reflection), Sixth Form study areas, and Staff Canteens. It is also the go-to choice for large assembly halls that host community events, offering a professional look for non-school users.

Key Features

  • Compliance Ready (Size 6) – 430mm seat height meets BS EN 1729 standards for the 11-14 year age group.
  • Space Efficient – Vertically stacks 12 high, allowing studios and halls to be cleared in minutes.
  • Studio Ready – The matte Black finish minimizes light reflection, making it perfect for stage use.
  • Zero Maintenance – One-piece construction means no screws to tighten and no fabric to tear.
  • Safety Engineered – Anti-rock rear legs prevent tipping, ensuring safety in active environments.
  • Hygiene Ready – The smooth, non-porous surface is easy to sanitize and resists ink and stains.
  • Eco-Friendly – Manufactured in the UK using 30% recycled content and is 100% recyclable.
  • Robust Build – Lightweight at 3.6kg but tested to support a static load of 204kg.
20-year warranty icon
20-year warranty
Free delivery icon
Free UK Mainland Delivery
UK manufactured icon
UK manufactured

Cobolt Service & Ethos: Here to Make It Easy

  • Free Delivery (UK Mainland): We keep pricing simple and transparent. The price includes shipping to your door.
  • Personal Account Management: A dedicated expert will handle your order from enquiry to completion.
  • Flexible Logistics: We understand school schedules and will arrange delivery to suit your needs.
  • Proven Durability: We only supply furniture that survives the rigours of the UK education sector.

Safety & Warranty

Built for Safety. Backed for Years.

  • All Cobolt products are vetted for institutional safety compliance. This chair is certified to BS EN 1729 Part 1 & 2, ensuring it meets strict ergonomic and strength standards for schools.
  • We design for safety: the anti-rocking mechanism prevents tipping accidents, and the anti-static finish makes it safe for use in server rooms and IT suites.
  • Hygiene is simple. The chemically resistant polypropylene can be cleaned with industrial detergents without degrading the finish.
  • We protect your budget with a 20-year manufacturer's warranty. This covers the structural shell and legs against breakage for two decades.
  • The chair is tested to support a static weight of 204kg, making it a reliable choice for students, staff, and visitors alike.

Specification Dimensions

The Jet Black Postura+ 430mm chair offers a professional, heavy-duty seating solution for Year 7–9 pupils and mixed-use spaces. These specifications ensure it meets the diverse demands of modern educational campuses.

Dimensions
760mm (H) × 480mm (W) × 505mm (D)
Weight
3.6kg
Warranty
20 years
Specification
Details
Purpose / Benefit
Seat Height
430mm
DfE Size 6 standard for ages 11–14
Material
30% recycled high-impact polypropylene
Sustainable, durable, and wipe-clean
Construction
Single-piece gas injection mould
No screws or rivets; zero maintenance
Ventilation
Lumbar ventilation window
Prevents overheating during long events
Edge Profile
Waterfall seat edge
Maintains circulation and comfort
Anti-static / Anti-rocking
Yes
Safe for IT areas; prevents tipping
Stackability
Up to 12 chairs
Enables rapid room reconfiguration
Weight Capacity
204kg
Robust rating suitable for adults and students
Outdoor Suitability
UV filter
Resists fading in sunlight
Compliance
BS EN 1729–1:2015 / BS EN 1729–2:2023
Certified for UK educational use
Colour
Jet Black
Professional finish for drama, staff, and exams

Dimensions strictly follow DfE size mark guidelines. Minor variations may occur due to 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: The Best Black Chair for Schools and Colleges

Q: Is delivery included in the price?

A: Yes, Free UK Mainland Delivery is included. We cover the transport costs, meaning the price you see is the price you pay, with no hidden freight fees.

Q: Where is the Black chair most commonly used?

A: It is ideal for Drama studios (Black Box spaces) as it doesn't reflect light. It is also very popular for Sixth Form centres, Staff rooms, and Conference halls due to its mature aesthetic.

Q: Is it tough enough for older students?

A: Absolutely. It is tested to support 204kg (32 stone) and is virtually unbreakable, making it perfect for Year 7 right through to Sixth Form and adult use.

Q: How high can these chairs be stacked?

A: You can safely stack them 12 high vertically on the floor. This allows flexible use of space in halls and studios.

Q: Is this size suitable for 11-14 year olds?

A: Yes. The 430mm seat height is the BS EN 1729 Size 6 standard, ergonomically designed for the 11-14 age group.

Q: Does the black finish show dust?

A: The material is anti-static, which repels dust. The textured surface is also excellent at hiding scuffs and scratches compared to lighter colours.

Q: Does it have a warranty?

A: Yes, it comes with a comprehensive 20-year warranty on the shell and legs, guaranteeing your investment for decades.

Q: Can I use this chair outdoors?

A: Yes, the polypropylene contains a UV stabiliser to prevent the black colour from fading, making it suitable for outdoor events.

Q: Why choose Cobolt Furniture?

A: We are B2B specialists. We offer Free UK Mainland Delivery, expert advice, and genuine UK-manufactured products with reliable lead times.

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