BIRCH Ergonomic Chair

$499.00
White BIRCH ergonomic chair beside a wooden desk in a sunlit lakeside home office
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30-day returns
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BIRCH · by ITO Design

BIRCH Ergonomic Chair

$499.00
  • ITO Design silhouette: restrained residential form with an ergonomic core.
  • Linked dual-back support: upper back, waist, and sacrum move as one system.
  • Full Wintex mesh contact: breathable seat and back with high rebound support.
  • BOCK control story: height, depth, and tilt adjustments within easy reach.
  • Easy assembly: Quick setup in about five minutes.
  • Home-first ownership: 30-day returns, 10-year limited warranty,free shipping in the contiguous U.S.
Colour: White

Certification & proof

Awards and indoor-air certifications for BIRCH, with supporting documents available before checkout.

A' Design Award GREENGUARD Gold BIFMA

Free shipping

Free shipping from our US warehouse. Expected to ship September 15, 2026.

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$499.00
BIRCH ergonomic chair with a spine overlay showing dual-back support along the natural S-curve
Support along your spine Linked dual-back frame follows your natural S-curve — back, waist, sacrum.
BIRCH adaptive lumbar support tracking the lower back
3D glide support Auto-follows your back, actively tracks your lumbar.
Close view of the BIRCH German BOCK control base and chassis
BOCK control base German-made: height, seat slide, tilt-lock, and tension.
BIRCH seat-depth slide adjustment
Seat-depth slide Glide the seat to fit your leg length.

BIRCH in motion

Support you can see from every angle.

Cool through long hours

Full Wintex mesh keeps air moving across the seat and back.

German BOCK control base

Quick-control chassis: lift, seat-slide, tilt-lock, and tension.

Made to your body's curve

Contoured to follow your natural spine and posture.

Moves as you move

Support tracks your shifts and stays with you as you settle.

Premium Materials & Engineering

Built for durability, comfort, and everyday performance.

Wintex JRD+ Mesh

High-rebound ergonomic mesh

  • Abrasion: 100,000 cycles
  • Composition: 64% elastomer / 28% nylon / 8% polyester
  • Weight / width: 492 g/YD / 66 in
  • Colorfastness: grade 4.5 / dry rub >= 4.5

Micro-elastic Mesh

Airflow, rebound, daily contact

Close-up of BIRCH Wintex mesh fabric
Class-4 KGS® gas lift — BIRCH detail
Class-4 KGS® gas lift
  • US BIFMA standard
  • 85 mm stroke
  • 99.99% pure nitrogen
  • 100,000+ safety cycles
Die-cast aluminium base — BIRCH detail
Die-cast aluminium base
  • US BIFMA standard
  • Single-piece 5-star cast
  • 1,136 kg static-load tested
PU quiet casters — BIRCH detail
PU quiet casters
  • US BIFMA standard
  • Silent, floor-safe
  • 60 mm diameter
  • 100,000+ durability cycles

Awards & certifications

Independently recognised and tested.

BIRCH is award-honoured for its design and independently certified for low emissions and structural safety.

Platinum A' Design Award
Platinum A' Design Award Office Furniture Design · 2024–2025
GREENGUARD Gold
GREENGUARD Gold Low chemical emissions · UL 2818
BIFMA
BIFMA Structural durability & safety · ANSI/BIFMA

Certifications and testing apply to the BIRCH production model.

Seen up close

Every adjustment, and what it's built from.

The controls your hands actually reach, and the parts underneath — shown, not claimed.

3D adjustable armrests — BIRCH detail
One-touch seat height — BIRCH detail
Recline lock — BIRCH detail
Seat-depth slide — BIRCH detail
  • Forward / back 60 mm
Tilt tension — BIRCH detail

The mechanism, in motion

Three adjustments.Shown, not claimed.

A short, honest clip of the mechanism in motion — shown, not claimed.

Real function footage

Specifications

A quieter silhouette, with the mechanism intact.

dimensions

General

Product
BIRCH Ergonomic Chair
Designer
ITO Design, Nuremberg
Finishes
White or Black frame · Gray Wintex mesh

Build

Frame
Die-cast aluminium outer, high-elasticity nylon inner
Surface
Korean Wintex® flocked mesh
Support
Linked dual-back for upper back, waist, and sacrum

Dimensions & adjustment

Overall height
1170–1255 mm high-back · 1025–1110 mm mid-back
Seat
660 mm wide · 570–630 mm adjustable depth
Recline
Three-position tilt lock with tension adjust, up to 130°
BIRCH assembly diagram

Assembly

A simpler setup, shown clearly.

Pair the assembly diagram with the short checklist, so the customer sees the parts and the process in one view.

Base
Press the casters into the five-star base.
Lift
Drop the gas cylinder into the centre socket.
Chair body
Lower the seat-and-back assembly onto the cylinder.
Final check
Sit down once to settle the fit, then adjust height and recline.
Rear view of the BIRCH dual-back structure

The design credit

Designed byITO Design, Nuremberg.

The dual-back line, restrained mechanism, and residential silhouette were designed as one chair. That is the complete attribution.

A BIRCH chair in a light, wood-toned home workspace with oak storage and tall windows

Why we made it

Belongs in a home,not a cubicle.

Most ergonomic chairs were designed for offices, then sold to apartments. We bring home the work of the studios behind the world's most enduring seating — a chair you'd keep in the room you love most, not one you hide when guests arrive.

Your home, finally at rest.