




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.
Povpraševanje za podjetja
Pripravljamo posebne pogoje za večje naročila. Pustite nam vaše podatke in vrnemo se vam v najkrajšem možnem času.
- Backrest fabric:
- One rumena 3530
- Seat fabric:
- One rumena 3530
- Rokonasloni:
- Z rokonasloni
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 designed seat with a 360° motion mechanism that enables active sitting
- Seat: depth adjustment forward and backward (sliding plate)
- Seat height adjustment
- Aluminum polished base
- Rubberized castors for hard floors
- Upholstery with One fabric in seven colors
- Option to add 4D armrests
- Dynamic 360° movement relieves pressure on spinal muscles
Dimensions & Technical Specifications
Seat height: ___ cm (adjustable)
Seat width: ___ cm
Seat depth: ___ cm
Backrest height: ___ cm
Weight: ___ kg
Maximum load: ___ kg
Precise specifications are in the attached technical sheet (PDF) below.
Materials & Fabrics
Seat and backrest: upholstered in One fabric
Available One fabric colors: yellow (3530), turquoise (7504), blue (6512), green (7521), light grey (8532), dark grey (8017), black (8033)
Base: polished aluminum
Castors: rubberized, suitable for hard floors (parquet, laminate, tiles)
Additional fabrics and color combinations are available on request. You can view all samples in our material library.
Mechanism & Adjustments
360° motion mechanism — the seat naturally moves in all directions and follows every body movement. It activates core muscles, relieves pressure on spinal muscles, and reduces pain from prolonged static sitting.
Adjustments:
- Seat height (gas spring)
- Seat depth adjustment forward and backward (sliding plate)
- 4D armrests — height, width, depth, angle (optional)
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: for 5 pieces or more
Custom configuration: fabrics in corporate colors, 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
Contact person for projects: 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 basic One fabric colors — from neutral grays to vibrant turquoise and yellow shades. Optionally, you can add 4D adjustable armrests. For larger projects (5+ pieces), we perform custom configuration: corporate colors, additional fabrics, logo on the backrest. You can view all samples in our material library.
What's the warranty on Logic?
The 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 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, seat depth (sliding seat), and optional 4D armrests. The precise range of adjustments and maximum load are in the technical sheet (PDF) above. For individual consultation regarding 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.

