Heka Interior — ergonomic office chair
Cassia
Ergonomically designed work chair Cassia combines comfort, flexibility, and a modern look – ideal for long and dynamic workdays.
Cassia Technical Specifications
Key Features
- Ergonomic spinal support
- Thoughtful design for comfortable sitting
- High-quality breathable materials
- Made in Slovenia
- 3-year 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 data sheet (PDF) below.
Materials & Fabrics
Seat: quality fabric with high-quality foam (details in the PDF technical data sheet)
Backrest: quality mesh / fabric (details in the PDF technical data sheet)
Base: robust base (details in the PDF technical data sheet)
Casters: quality casters (details in the PDF technical data sheet)
You can view all available fabrics and color options in our material library.
Mechanism & Adjustments
Ergonomic mechanism — a thoughtfully designed mechanism for comfortable and proper seating.
Adjustments:
- adjustable seat height
- adjustable backrest
- adjustable armrests
- detailed adjustments in the technical sheet below
Delivery, Installation & Returns
Manufacturing and delivery: 4-6 weeks (custom-made product, in-house production in Medvode)
EU delivery: 4-7 weeks
Free 7-day trial in your workspace. If the chair isn't the right fit, we'll pick it up at no cost.
14-day returns in accordance with the law.
For Businesses & Architects
Volume discounts: from 5 units onwards
Custom configuration: choose fabric, frame color, base, and accessories
Heka references: NLB Emona BTC (1,200 workstations), Triglav, Volvo, Marriott, Radisson
CAD/DWG files for 3D models and floor plans
Free consultation for 50+ workstations.
B2B SERVICES
For Architects & Project Planners
Comprehensive service from concept to delivery. Cassia is the standard choice for offices and coworking spaces.
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
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 Cassia
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, Triglav 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 Cassia differ from other ergonomic chairs?
Designed in Slovenia with a focus on ergonomics, quality materials, and sustainable manufacturing. Each chair is custom-configured for each client — from the fabric to the frame color and base type.
How does the 7-day free trial work?
We deliver the chair to your address (office or home). You have 7 days to test it in your actual work environment. If it's not the right fit, we will take it back at no cost. If you are satisfied, you keep it and pay. No risk, no questions asked.
Can Cassia be custom-configured?
Yes. You can choose the fabric, frame color, base, and accessories. For larger projects, we offer additional configuration and branding options. Contact us at sales@heka-interior.com.
What's the warranty on Cassia?
The 3-year manufacturer's warranty covers the mechanism, gas lift, and material defects. With our in-house 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.
Who is this chair suitable for?
Ideal for everyone who spends more than 4 hours a day at a desk — programmers, designers, architects, project managers, and executives. The chair supports active sitting and reduces strain on the spine.
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. Try it for 7 days in your actual work environment. If it's not for you, we'll pick it up at no cost.
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 in Slovenian.
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