CoreLift Corner Sit-Stand Corner Desk Frame
An L-shaped corner frame to put your own tabletop on. The same frame as in the CoreLift Corner sit-stand corner desk, only without the top.
Three legs, three motors, height 61–126 cm, load 150 kg. The tabletop is not included.
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CoreLift Corner frame specifications
Who this frame is for
You already have a corner tabletop. An existing one, one made to measure or one from your joiner — set the frame to its dimensions.
You are renovating a corner desk. Unscrew the top from the old base and fasten it to the sit-stand frame. The fixed corner desk becomes a sit-stand desk.
You are running a project. In an office refit the tabletops stay and only the frames are replaced.
You are an architect or planner. DWG files and project pricing are available — write to sales@heka-interior.com.
Key features
An electric sit-stand corner frame without a tabletop — for your own top.
- L-shaped frame with three columns and three synchronized motors
- Frame height from 61 to 126 cm (sitting–standing), speed 32 mm/s
- Controller with height memory and anti-collision protection
- Telescopic frame: main section 1004–1794 mm, side return 555–950 mm
- Load capacity up to 150 kg (1500 N), operating noise below 50 dB
- Powder-coated steel: black, white or gray
- 3-year warranty
The same frame as in the CoreLift Corner sit-stand corner desk. The tabletop is not included.
Dimensions and technical data
Type: electric sit-stand corner frame, three legs at 90°, three motors
- Frame height: 61–126 cm
- Main section of the frame: 1004–1794 mm (bracket to bracket)
- Side return of the frame: 555–950 mm (from the axis of the main rail to the bracket of the third leg)
- Lifting speed: 32 mm/s
- Load capacity: up to 150 kg (1500 N)
- Noise: below 50 dB
- Controller: with height memory and anti-collision protection
- Frame colours: black, white, gray (powder coat)
- Tabletops on the CoreLift Corner desk: main section 140–200 cm, depth 70–90 cm, side return 140, 160 or 180 cm
- Warranty: 3 years
The tabletop is not included. If you need exact dimensions for your own top, write to sales@heka-interior.com or call +386 1 361 90 28.
Materials and finish
Frame and base: powder-coated steel — black, white or gray.
Tabletop: not included. The frame is made for your own corner top — an existing one, one made to measure, or one from your joiner.
A tabletop from us. Corner tops in six finishes are on the CoreLift Corner sit-stand corner desk page, and an overview of finishes is on the Materials page.
Mechanism and adjustments
Drive: three synchronized electric motors, one in each column.
- Frame height range from 61 to 126 cm (sitting–standing), speed 32 mm/s
- Controller with height memory
- Anti-collision protection
- Load capacity up to 150 kg
- Operating noise below 50 dB
- Telescopic frame: main section 1004–1794 mm, side return 555–950 mm
Fitting your tabletop in three steps
1. Set the length of both sections. Extend the telescopic rails of the main section and the side return to the dimensions of your tabletop and bolt them in place.
2. Fasten the tabletop. Place the frame on the upturned top, align it and screw through the holes in the rails.
3. Fit the controller and cables. Screw the controller under the front edge of the top, connect the motors and the power supply, then turn the desk upright.
In the box: frame, controller with height memory, power supply and fixings.
Delivery and returns
Delivery: the frame ships folded in protective packaging.
14-day returns in line with the law.
Service and spare parts from Heka Interior in Medvode, also after the warranty expires.
For companies and architects
Volume discounts: from 5 units
For office refits: keep the existing corner tabletops and replace only the frames — fixed corner desks become sit-stand desks.
Heka references: our clients include NLB, Triglav and Volvo
CAD/DWG files for 3D models and floor plans
Showroom: Medvode, Žlebe 1
Project contact: sales@heka-interior.com
B2B SERVICES
For architects and planners
Full service from concept to delivery. The CoreLift Corner frame is the solution for refits where the existing corner tabletops are kept.
CAD / BIM files
Technical files (DWG) of the frame 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 showroom
Showroom in Medvode, Žlebe 1 — try the sit-stand desks and frames in person.
Volume discounts
From 5 units up. For refits where you keep the existing tabletops we prepare a project price.
Documentation to download
All the technical data you need to choose a tabletop and fit it.
Advanced controller manual
Memory positions, reset, settings, anti-collision protection and error codes (PDF, English).
Heka catalog 2026
The complete catalogue of sit-stand desks, frames and office furniture.
CAD / DWG files
For architects: a 3D model of the frame for office floor plans and BIM planning.
TRUSTED BY
Our products in Slovenian and European companies
Heka furnishings are in NLB offices, Triglav meeting rooms, Volvo service centers and Marriott and Radisson hotel rooms across Europe.
Years of Slovenian tradition
Slovenian and European partners
Years of warranty
Load capacity (kg)
Frequently asked questions
Is the tabletop included?
No. You are buying the frame only — the corner lifting frame with three motors, a controller with height memory, a power supply and fixings. You supply the tabletop. If you want the complete desk with a top, choose the CoreLift Corner sit-stand corner desk.
Which tabletops fit this frame?
The frame is telescopic: set the main section from 1004 to 1794 mm and the side return from 555 to 950 mm. The tabletop can be longer than the frame and overhang it a little. On the CoreLift Corner desk with this frame we offer tops with a main section of 140–200 cm and a depth of 70–90 cm. If you are not sure whether your top fits, send us the dimensions at sales@heka-interior.com and we will check.
What is the height range?
The frame height adjusts from 61 to 126 cm, so it suits both seated and standing work. The lifting speed is 32 mm/s.
How does assembly work?
In three steps: set the length of both sections of the telescopic frame, screw the frame to the upturned tabletop, then fit the controller under the front edge and connect the motors and the power supply.
What is the warranty?
3 years. The warranty covers the motors, the lifting mechanism and material defects. We provide service and spare parts in Medvode also after the warranty expires.
Do you offer discounts for larger quantities or projects?
Yes. Volume discounts from 5 units up. For office refits where the existing tabletops stay we prepare a dedicated quote. Send an inquiry or call +386 1 361 90 28.
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 28.
Why buy the frame from Heka
Heka Interior is a long-term partner for furnishing your office.
Your tabletop stays
In a refit you replace only the frame. Keep the existing corner tabletop and the fixed desk becomes a sit-stand desk.
One frame, many tabletop sizes
Main section from 1004 to 1794 mm, side return from 555 to 950 mm. You set both lengths during assembly.
3-year warranty
The warranty covers the motors, the lifting mechanism and material defects. Service and spare parts from Medvode.