MASTER Q4 — FEATURES

Elegance that supports you

Every element is thoughtfully designed — from 3D lumbar support to a 4-position lock — to keep the body supported in every position.

01 /04

Synchron mechanism with 4 positions

The seat and backrest move synchronously. The mechanism locks in four positions—from upright to fully reclined. Q4 stands for four positions that support the body throughout the workday.

02 /04

3D lumbar support

Height and depth adjustable lumbar support. It precisely adapts to the curve of your spine and relieves the lower back even during 8-hour sitting.

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Breathable NET mesh

Backrest made of durable, breathable NET mesh. It provides ventilation, retains its shape, and allows you to sit without interruption even in warmer months.

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Adjustable tilt tension

Adjust the mechanism to your weight. Lighter users can recline effortlessly, while heavier users receive firm support. Weight capacity up to 120 kg.

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Technical data Master Q4

Key Features
  • Ergonomically designed backrest in comfortable, breathable and durable NET mesh
  • Height and depth adjustable 3D lumbar support
  • Synchron mechanism with synchronous movement of seat and backrest
  • Backrest lock in four positions (Q4)
  • Adjustment of backrest tilt tension according to user's weight
  • Ergonomically designed seat upholstered with Bondai fabric
  • Seat height adjustment
  • Chrome or PVC base (black)
  • Rubberized castors suitable for hard floors
  • Load capacity up to 120 kg
Dimensions & Technical Specifications

Seat height: ___ cm (adjustable)

Seat width: ___ cm

Seat depth: ___ cm

Backrest height: ___ cm

Weight: ___ kg

Maximum load capacity: 120 kg

Precise specifications are in the attached technical list (PDF) below.

Materials & Fabrics

Seat: Bondai fabric — Blue 67, Gray 36 or Black 02

Backrest: NET mesh, black

Base: polished chrome or black PVC

Castors: rubberized, suitable for hard floors

All available fabrics and color variations can be viewed in our material library.

Mechanism & Adjustments

Synchronous mechanism — the seat and backrest tilt synchronously. Locking option in four positions (hence the Q4 designation).

Settings:

  • Seat height
  • Backrest tilt tension according to user's weight
  • 3D lumbar support — height and depth adjustable
  • Armrests — adjustable
Delivery, Installation & Returns

Manufacturing and delivery: 4-6 weeks (custom product, in-house production in Medvode)

EU Delivery: 4-7 weeks

Free 7-day trial in your workspace. If the chair doesn't fit, we'll pick it up at no cost.

14-day return in accordance with the law.

For Businesses & Architects

Volume discounts: from 5 pieces onwards

Custom configuration: choice of three standard Bondai fabric colors (Blue, Gray, Black) and base in chrome or black PVC; for larger projects, also fabrics in corporate colors

Heka References: NLB Emona BTC (1,200 workstations), Triglav, Volvo, Marriott, Radisson

CAD/DWG files for 3D models and floor plans

Chair showroom: Medvode

Contact person for projects: sales@heka-interior.com

B2B SERVICES

For Architects and Designers

Comprehensive service from design to delivery. Master Q4 is a reliable choice for modern offices, where both comfort and aesthetics matter.

CAD / BIM Files

All technical files (DWG) for your 3D models and office floor plans.

Personal Consultation

Our team of technologists and project managers will arrange a meeting with you. Free consultation for 50+ workstations.

Contact us →

Visit Our Showroom

Chair showroom in Medvodah — try all the chairs in person.

Volume Discounts

From 5 items onwards. For 200+ workstations, special offers and custom branding.

Documentation Downloads

All the technical data you need for office planning or a purchase decision.

Master Q4 Technical Data Sheet

Dimensions, materials, mechanism and certificates in PDF format.

Download PDF

Heka Catalog 2026

Complete catalog of all ergonomic chairs and office furniture.

Download Catalog

CAD / DWG Files

For architects: 3D models for office layouts and BIM planning.

Submit Inquiry

TRUSTED BY

Our products in leading Slovenian and European companies

Heka chairs furnish 1,200 workstations at NLB Emona BTC, meeting rooms at Triglav, Volvo service centers, and Marriott and Radisson hotel rooms across Europe.

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34+

Years of Slovenian tradition

20+

Slovenian and European partners

3

Years of warranty

7

Days of free trial

Frequently Asked Questions

How does Master Q4 differ from other ergonomic chairs?

Master Q4 has two key advantages: 3D adjustable lumbar support (height and depth adjustable) and 4-position backrest lock (hence the Q4 designation). In most chairs in this price range, the lumbar support is only height-adjustable, without a lock. Master Q4 allows you to support your back exactly where you need it, and lock the mechanism in the desired position.

How does the 7-day free trial work?

We deliver the chair to your address (office or home). Test it for 7 days in your real work environment. If it doesn't suit you, we pick it up free of charge. If you are satisfied, keep it and pay. No risk, no questions asked.

Can I customize Master Q4?

Master Q4 comes standard in three Bondai fabric colors: Blue 67, Gray 36, and Black 02. You can choose the base from polished chrome or black PVC. For larger projects (5+ pieces), we provide custom configurations in corporate colors, other fabrics, and with a logo on the backrest. More in the materials library.

What's the warranty on Master Q4?

3-year manufacturer's warranty covers the mechanism, gas lift, and material defects. With in-house production in Medvode, we ensure spare parts even after the warranty expires.

Do you offer discounts for larger quantities or projects?

Yes. Quantity discounts apply from 5 pieces onwards. For 200+ workstations (e.g., NLB Emona — 1,200 workstations), we prepare a special offer with custom configuration, free consultation, and an extended warranty. Send an inquiry or call +386 1 361 90 28.

Is Master Q4 suitable for tall or shorter people?

Master Q4 is designed for users up to 120 kg and for most body heights. Adjustable features include seat height, tilt tension based on weight, 3D lumbar support (height and depth), and armrests. The precise range of adjustments is detailed in the technical sheet (PDF) above. For individual consultation regarding suitability, call +386 1 361 90 28 or view the chair in person at our showroom in Medvode.

Didn't find your answer?

Write to us at sales@heka-interior.com — we respond within 24 hours. For urgent projects, call +386 1 361 90 28.

Advantages of Heka Interior

Why buy from Heka

Heka Interior is more than a chair manufacturer — we are a long-term partner for your office.

01

7-day free trial

We deliver the chair to your address. You have a 7-day trial in your actual work environment. If it's not for you, we'll pick it up at no cost.

02

Slovenian in-house production

Every Heka chair is made in Medvode. Our in-house manufacturing ensures service and spare parts are available even after the warranty expires.

03

3-year warranty

Premium materials and in-house quality control before every shipment. Local support in Slovenian.