



Heka SteelLine — Cable tray for desks
Heka SteelLine is an under-desk cable tray made of powder-coated sheet steel. It hides all cables, power supplies and power strips under the desk — no visible wires, no clutter. Mounting clamps secure it firmly to the lower edge of the desk in under ten minutes. Longitudinal slots in the bottom of the tray let cables exit neatly, while the front and rear walls stay smooth for a clean look. The “heka” lettering is engraved on the front wall. Available in three colors: gloss black, gloss white and gloss gray. Mounting screws included.
Colour (powder-coat)
View in your space
Scan the code with your phone — this colour opens in AR.
Technical data Heka SteelLine
Key features
- Tray made of powder-coated sheet steel
- Mounting clamps for attaching to the lower edge of the desk
- Longitudinal slots in the bottom for organized cable routing
- Smooth front and rear walls for a clean look
- “heka” lettering engraved on the front wall
- Available in three colors: gloss black, gloss white and gloss gray
- Mounting screws included in the package
- Suitable for power cables, USB hubs and power strips
- Dimensions and compatibility details in the technical data sheet
Dimensions and technical data
Length: 1200 mm
Depth: 160 mm
Height: 140 mm
Material thickness: 1 mm
Materials and fabrics
- Body: sheet steel
- Finish: powder coating
- Colors: gloss black, gloss white, gloss gray (depending on the version selected)
- Fixings: metal screws, included in the package
- Details and color codes in the technical data sheet
Mechanism and adjustments
Mounting system — three L-shaped mounting brackets on the top edge of the tray screw directly into the underside of the desk.
Setup:
- Fits desks 20–50 mm thick
- Mounts along the rear edge of the desk (recommended) or anywhere along the underside
- Pre-drilled screws for easy installation without special skills
Delivery, installation and returns
Production and delivery: 1 week
EU delivery: 1-2 weeks
Free 7-day trial at your workplace. If SteelLine is not right for you, we collect it at no cost.
14-day returns in line with the law.
For companies and architects
Volume discounts: from 5 units up
Custom configuration: adjustment of length and surface finish for projects with 20+ workstations
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 STORITVE
For architects and planners
Full service from design to delivery. Heka SteelLine is the standard choice for furnishing office workstations with a concealed cable system.
CAD / BIM datoteke
All technical files (DWG) for your 3D models and office floor plans.
Personal consultation
Our team of technical specialists and project managers will arrange a meeting with you. Free consulting for 50+ workstations.
Visit the chair showroom
Chair showroom in Medvode, Žlebe 1 — try every chair in person.
Volume discounts
From 5 units up. For 200+ workstations, special offers and custom branding.
Documentation to download
All the technical data you need for office planning or a purchasing decision.
Heka SteelLine data sheet
Dimensions, materials, mechanism, and certificates in PDF format.
Heka catalog 2026
The complete catalog of all ergonomic chairs and office furniture.
TRUSTED BY
Our products in leading Slovenian and European companies
Heka furniture and office accessories furnish 1,200 workstations at NLB Emona BTC, Triglav's meeting rooms, Volvo service centers and the offices of leading European companies.




































Years of Slovenian tradition
Slovenian and European partners
Years of warranty
Days of free trial
Frequently asked questions
What makes Heka SteelLine different from plastic cable trays?
Heka SteelLine is made from 1 mm powder-coated sheet steel — it does not bend under the weight of cables and power strips. Plastic trays warp over time, and discoloration or cracks appear. Steel keeps its shape and its color even after years of intensive use.
How does the 7-day free trial work?
We deliver the cable tray to your address, whether that is your office or your home. Test it for 7 days in a real working environment. If it does not suit you, we collect it at no cost. If you are happy with it, keep it and pay. No risk, no questions.
Can I configure the Heka SteelLine to my own needs?
Yes. For projects with 20 or more workstations we offer custom lengths and surface finishes. Write to us at sales@heka-interior.com with a description of your project.
What is the warranty on Heka SteelLine?
The 3-year warranty covers material defects and powder-coating defects. Our own production in Medvode ensures spare parts even after the warranty expires.
Do you offer discounts for larger quantities or projects?
Yes. Volume discounts apply from 5 units up. For 200+ workstations (e.g. NLB Emona — 1,200 seats) we prepare a special offer with a custom configuration, free consulting, and an extended warranty. Send an inquiry or call +386 1 361 90 24.
How do I check whether Heka SteelLine fits my desk?
The tray is fastened to desktops 20–50 mm thick with L-clamps. Check the thickness of your desktop and allow at least 2 cm of space for the lower edge of the clamp. For non-standard desks, write to sales@heka-interior.com.
Didn't find your answer?
Email us at sales@heka-interior.com — we reply within 24 hours. For urgent projects, call +386 1 361 90 24.
Why buy from Heka
Heka Interior is more than a chair manufacturer — it is a long-term partner for your office.
7-day free trial
We deliver the cable tray to your address. You test it for 7 days at a real workstation. If it is not for you, we collect it free of charge.
Our own Slovenian production
Every Heka chair is made in Medvode. Our own production guarantees service and spare parts even after the warranty expires.
3-year warranty
Premium materials and in-house quality control before every shipment. Local support in Slovenian.

