
Heka Interior — work chair for production environments
Practica 3/4
Practica 3/4 is a durable work chair with an ergonomic seat and adjustments that enable individual adjustment. It is designed to support healthy posture and reduce fatigue during prolonged sitting. Its compact design and robust construction are ideal for use in production, laboratory, or technical environments.
Practica 3 technical data
Key Features
Swivel work stool with a polyurethane seat
Height adjustable via a gas lift
Black PVC frame and a robust five-star base on castors
For high workstations, choose the raised version Practica 3 high
Hard-wearing, easy-to-clean seat for production areas, laboratories and technical rooms
Made in Slovenia
3-year warranty
Free 7-day trial
Dimensions & Technical Specifications
We will gladly provide the exact dimensions (height, width, depth, seat height and load capacity) for the version you choose.
Write to sales@heka-interior.com or call +386 1 361 90 28 — we can also advise you on the right size for your space.
Materials & Fabrics
Seat: polyurethane (PU) upholstery, saddle-shaped with ventilation cut-outs — hard-wearing, resistant and easy to clean.
Backrest: the stool has no backrest (sit-stand version for working at counters and workbenches).
Frame: black PVC frame.
Base: robust five-star PVC base (black) on castors.
- For high workstations, the raised version Practica 3 high (with a footring) is available
- No fabric or leather — the seat is made of hard-wearing PU upholstery for demanding working environments
Mechanism & Adjustments
Swivel seat with adjustable height. The stool rotates freely, and the seat height is easily adjusted via the lever-operated gas lift.
- Adjustable seat height (gas lift)
- Swivel seat (360°)
- No backrest and no armrests (sit-stand design)
Delivery, Installation & Returns
Production and delivery: in-house production in Medvode. We will confirm the approximate lead time when you enquire.
Free 7-day trial in your own workspace. If the chair is not right for you, we collect it at no cost.
14-day returns in accordance with the law.
For Businesses & Architects
Volume discounts: from 5 units upwards Heka references: NLB Emona BTC (1,200 workstations), Triglav, Volvo, Marriott, Radisson CAD/DWG files for 3D models and floor plans Chair showroom: Medvode, Žlebe 1 Project contact: sales@heka-interior.com
B2B SERVICES
For Architects & Project Planners
Practica 3 is a standard choice for production facilities, workshops and laboratories.
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, Žlebe 1 — try every chair in person.
Volume Discounts
Starting from 5 items. For 200+ workstations, special offers and custom branding.
Documentation Downloads
All the technical data you need for office planning or a purchase decision.
Practica 3 technical data sheet
Dimensions, materials, mechanism and certificates in PDF format.
TRUSTED BY
Our products in leading Slovenian and European companies
Heka chairs stand in 1,200 workstations at NLB Emona BTC, in Triglav's meeting rooms, in Volvo service centres 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
What sets Practica 3 apart from other ergonomic chairs?
Well-considered ergonomics for work in production areas, workshops and laboratories, Slovenian manufacturing, hard-wearing materials and a 3-year warranty.
How does the 7-day free trial work?
We deliver the chair to your address (office or home). You try it for 7 days in a real working environment. If it is not right, we collect it at no cost. If you are convinced, you keep it and pay. No risk, no questions.
Can I configure Practica 3 to my needs?
Yes. You can choose the fabric and color. For school projects, we offer quantity discounts.
What is the warranty on Practica 3?
The 3-year manufacturer's warranty covers the mechanism, the gas lift and material defects. With our own production in Medvode we supply spare parts even after the warranty has expired.
Do you have discounts for larger quantities or projects?
Yes. Quantity discounts for 5 items or more. For 200+ seats (e.g., NLB Emona — 1,200 seats), we prepare a special offer with custom configuration, free consultation, and an extended warranty. Send an inquiry or call +386 1 361 90 28.
For what age child is it suitable?
For production facilities, workshops, laboratories, assembly and inspection areas, and work at workbenches. The durable construction withstands everyday industrial use.
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 a manufacturer and a long-term partner for furnishing your office.
7-day free trial
We deliver the chair to your address. You try it for 7 days in a real working environment. If it is not for you, we collect it at no cost.
Slovenian in-house production
Every Heka chair is made in Medvode. In-house production means servicing and spare parts stay available even after the warranty expires.
3-year warranty
Our own quality control before every shipment. Local support in Slovenian.
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