Heka Interior — active ergonomic chair
Logic
The Logic chair enables active ergonomic sitting with dynamic 360° movement, releasing pressure on spinal muscles and reducing pain caused by prolonged static sitting. Designed and made by Heka Interior, this chair supports your active lifestyle and improves your wellbeing in the office.
Quick and easy installment payments
Business inquiry
We arrange special terms for larger orders. Leave us your details and we will get back to you as soon as possible.
- Backrest fabric:
- One yellow 3530
- Seat fabric:
- One yellow 3530
- Armrests:
- With armrests
Perfect Pairing
7-day free trial at your workplace
Custom-made — produced in Slovenia
3-year warranty
Made in Slovenia, in Medvode
Technical specifications Logic
Key Features
- Ergonomically shaped seat with a 360° flexible mechanism that enables active sitting
- Seat: seat depth adjustment forwards and backwards (sliding seat)
- Seat height adjustment
- Stable black 5-star base
- Rubberised castors for hard floors
- Upholstered in One fabric in seven colours
- Available with or without armrests
- Dynamic 360° movement relieves pressure on the spinal muscles
Dimensions & Technical Specifications
We will be happy to provide the exact dimensions (height, width, depth, seat height and weight capacity) for your chosen configuration.
Write to sales@heka-interior.com or call +386 1 361 90 28 — we can also advise you on choosing the right size for your space.
Materials & Fabrics
Seat and backrest: upholstered in One fabric
One fabric colours: yellow (3530), petrol blue (7504), blue (6512), green (7521), light grey (8532), dark grey (8017), black (8033)
Base: black 5-star base
Castors: rubberised, suitable for hard floors (parquet, laminate, tiles)
You can combine the seat and backrest in different One fabric colours. For advice on colour combinations, contact us at sales@heka-interior.com.
Mechanism & Adjustments
360° flexible mechanism — the seat moves naturally in all directions and follows every movement of the body. It activates the core muscles, relieves pressure on the spinal muscles and reduces pain caused by prolonged static sitting.
Adjustments:
- Seat height (gas lift)
- Seat depth adjustment forwards and backwards (sliding seat)
- Version with or without armrests (optional)
Delivery, Installation & Returns
Production: made to order in our own production facility in Medvode.
Free 7-day trial in your workspace. If the chair does not suit you, we collect it free of charge.
14-day returns in accordance with the law.
For Businesses & Architects
Volume discounts: from 5 pieces
Custom configuration: One fabric colour combinations, logo on the backrest
Heka references: NLB Emona BTC (1,200 workstations), Triglav, Volvo
CAD/DWG files for 3D models and floor plans
Chair showroom: Medvode
Project contact: sales@heka-interior.com
B2B SERVICES
For Architects & Project Planners
Comprehensive service from design to delivery. Logic is the standard choice for offices, creative studios, and home workspaces.
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.
Visit Our Showroom
Chair showroom in Medvode — try all the chairs in person.
Volume Discounts
For 5 items or more. For 200+ workstations, special offers and custom branding.
Documentation Downloads
All the technical data you need for office planning or a purchase decision.
Technical Data Sheet Logic
Dimensions, materials, mechanism and certificates in PDF format.
TRUSTED BY
Our products in leading Slovenian and European companies
Heka chairs are used in 1,200 workstations at NLB Emona BTC, in Triglav's meeting rooms, Volvo service centers, and in Marriott and Radisson hotel rooms across Europe.
Years of Slovenian tradition
Slovenian and European partners
Years of warranty
Days of free trial
Frequently Asked Questions
How does Logic differ from other ergonomic chairs?
Logic is an active chair — the seat moves 360° and follows the body's movement, instead of forcing the body into a static posture. Classic office chairs keep you still, thereby tiring your spinal muscles. Logic has the opposite philosophy: subtle movement throughout the day keeps core muscles active, relieves pressure on the spine, and reduces pain. This is a solution for anyone who spends more than 6 hours at a desk.
How does the 7-day free trial work?
We deliver the chair to your address (office or home). Test it for 7 days in a real working 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 custom-configure Logic?
Yes. Logic is available in seven One fabric colours — from neutral greys to vibrant petrol blue and yellow shades. You can combine the seat and backrest in different colours. You can also choose a version with or without armrests. For larger projects (5+ pieces), we carry out custom configuration: One fabric colour combinations and a logo on the backrest. For other options, contact us at sales@heka-interior.com.
What's the warranty on Logic?
The 3-year manufacturer's warranty covers the mechanism, gas lift and material defects. With our own production in Medvode, we provide spare parts even after the warranty expires.
Do you have a discount for larger quantities or projects?
Yes. Quantity discounts start from 5 items. 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 inquiry or call +386 1 361 90 28.
Is Logic suitable for tall or shorter individuals?
Logic has independently adjustable elements: seat height and seat depth (sliding seat), and it is also available with or without armrests. The exact adjustment range and maximum load are in the technical data sheet (PDF) above. For individual advice on suitability, call +386 1 361 90 28.
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.
Why buy from Heka
Heka Interior is more than a chair manufacturer — we are a long-term partner for your office.
7-day free trial
We deliver the chair to your address. You have 7 days to try it in your actual work environment. If it's not for you, we'll pick it up free of charge.
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.
3-year warranty
Premium materials and in-house quality control before every shipment. Local support provided in Slovenian.