Heka Interior — ergonomic children's chair
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.
Technical specifications Practica 3/4
Key Features
- Ergonomic spine support
- Thoughtful design for comfortable seating
- Quality, breathable materials
- Made in Slovenia
- 3 years warranty
- 7-day free trial
- Custom configuration (fabrics, colors)
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: high-quality fabric with high-quality foam (details in PDF technical sheet)
Backrest: high-quality mesh / fabric (details in PDF technical sheet)
Base: robust base (details in PDF technical sheet)
Castors: high-quality castors (details in PDF technical sheet)
All available fabrics and color variations can be viewed in our material library.
Mechanism & Adjustments
Ergonomic mechanism — a thoughtful mechanism for comfortable and correct sitting.
Settings:
- adjustable seat height
- adjustable backrest
- adjustable armrests
- precise settings in the technical sheet below
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 units
Made-to-order configuration: fabric and color
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
Comprehensive service from design to delivery. Practica 3/4 is the standard choice for schools, kindergartens, and children's rooms.
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.
Technical data sheet Practica 3/4
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 Practica 3/4 differ from other ergonomic chairs?
Thoughtful ergonomics for growing children's backs, Slovenian production, durable materials, and a 3-year warranty.
How does the 7-day free trial work?
We deliver the chair to your address (office or home). Try it for 7 days in a 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 custom-configure Practica 3/4?
Yes. You can choose the fabric and color. For school projects, we offer quantity discounts.
What's the warranty on Practica 3/4?
3-year manufacturer's warranty covers the mechanism, gas lift, and material defects. With in-house production in Medvode, we provide spare parts even after the warranty expires.
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 children from elementary school to university (approx. 6–20 years old). Adjustable height allows for use throughout all school years.
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. Test it for 7 days in your actual work environment. If it's not right 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 our own quality control before every shipment. Local support in Slovenian.
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