As of September 11, 2026
The sequence of events is almost always the same. The lift has been chosen, the spot in the shop is cleared, excitement is high – and then comes the question about the concrete thickness. Tape measure stuck into the hole next to the floor drain: 11 centimeters. As standard, most 2-post lifts require 20 cm. This means the project is either dead in the water or about to get very expensive.
It gets even trickier if there is underfloor heating embedded in the floor. Breaking out a 20 cm deep foundation is completely off the table then – you would rupture the heating pipes.
For three OMCN lifts, there is now an official solution: a base reinforcement bracket that allows the lift to be installed on 10 cm of concrete. We know of no other manufacturer offering such an approval for a clear-floor 2-post lift. However – and that is what this article is about – 10 cm is not automatically just 10 cm. Your slab must meet specific structural requirements.
Why 20 cm in the first place?
A 2-post lift does not simply rest on the ground; it hangs on it. A vehicle on extended support arms creates a significant tipping moment at each column base. The floor must absorb this moment entirely through the anchor bolts: on one side of the base plate they are subjected to tension (pull-out forces), while on the other side the concrete is subjected to extreme compressive load.
This results in two fundamental structural requirements that must both be met:
Anchor load capacity: The mechanical or chemical anchor requires sufficient concrete depth around it to prevent pulling out along with a concrete breakout cone.
Punching shear and bending resistance: The floor slab itself must distribute the concentrated load beneath the column over a wider area without cracking, flexing excessively, or punching through.
The factory requirement of 200 mm in concrete grade C20/25 is the simplest answer: ample material thickness, wide safety margin, zero engineering calculations required.
What the reinforcement bracket does
The bracket (part no. OMCAAAX000632) is bolted directly to the column base frame, substantially increasing the footprint through which load is transferred into the floor. Instead of concentrating all stress onto the compact base plate, load transfer is distributed across more anchor points over a much larger contact area. This lowers peak stress significantly, meaning a thinner concrete slab is mathematically and structurally sufficient.
Two brackets are required per lift – one for each column. Both are included in the bracket kit item number. For mounting, an additional 6 floor anchors are required, which are not included in the standard scope of delivery.
The catch: 10 cm is not just 10 cm
This is where attention to detail is critical, and where many shop projects fail in practice. When using the reinforcement brackets, the following minimum parameters apply:
| Requirement | Value |
|---|---|
| Minimum thickness | 100 mm |
| Concrete strength class | C35 (or higher) |
| Reinforcement | Two layers of welded wire mesh |
| Rebar / Wire diameter | 8 mm |
| Mesh grid spacing | 200 × 200 mm |
Two critical differences stand out when comparing this to the standard setup:
C35 instead of C25. The required compressive strength class is higher. The bracket permits a thinner slab, but demands higher-density, higher-grade concrete. A generic workshop floor from decades ago is rarely poured in C35.
Two layers of reinforcement mesh. This is the criterion where most real-world projects fail. Many thin floors have no structural reinforcement at all, consisting merely of unreinforced screed or a plain top wearing course over insulation or gravel.
In short: The bracket is the ideal solution for a thin, but high-quality concrete slab. It is not a fix for a structurally compromised floor. For unreinforced concrete, floating screed on insulation, or questionable existing slabs, it cannot replace a full foundation pad – in such cases, consulting a structural engineer prior to installation is essential.
Underfloor heating: the second major application
A classic scenario is the private garage or newly built workshop. The structural build-up is clean, dense, and solid, but relatively thin – and cutting open the floor is impossible due to embedded heating loops. Until now, this situation was practically unsolvable.
This is where the bracket proves its real worth, allowing the lift to anchor safely into the existing slab thickness. Nevertheless: Drilling and anchor placement are still mandatory with the brackets. There must be zero collision between anchor holes and heating loops. Prior to installation, you therefore require:
A certified pipe layout plan from the heating contractor, or a thermal imaging scan while the heating is actively running, or a reliable precision pipe detection device.
Blind drilling in this scenario will lead to costly damage. If you are uncertain, contact us beforehand – we can review the anchor grid geometry with you before placing the lift order.
These three OMCN lift models are approved
The bracket kit is exclusively engineered for the 199 platform. All three models feature a completely clear-floor setup – no drive-over base frame, no tripping hazard, and zero obstruction when positioning low-profile hydraulic jacks.
| Model | OMCN 199/GK | OMCN 199/GAMMA | OMCN 199/ALFA |
|---|---|---|---|
| Lifting capacity | 3,200 kg | 3,500 kg | 4,000 kg |
| Lifting height | 1,940 mm | 1,940 mm | 1,980 mm |
| Drive-through width | 2,500 mm | 2,650 mm | 2,700 mm |
| Minimum pad height | 90 mm | 90 mm | 120 mm |
| Standard concrete foundation | 200 mm (C25) | 200 mm (C25) | 200 mm (C25) |
| Foundation with bracket | 100 mm (C35) | 100 mm (C35) | 100 mm (C35) |
| Price | 4,199 € | 4,899 € | 5,799 € |
All three models feature heavy-duty mechanical screw drives, internal 4-point roller-bearing carriages, electronic synchronization, and rotated column geometry. The GK and GAMMA models offer an ultra-low 90 mm clearance for sports cars, while the ALFA handles up to 4.0 tons, making it ideal for commercial vans and light trucks.
Comparing the alternative costs
To help you evaluate the true value of the reinforcement bracket, consider the standard solutions when dealing with insufficient concrete depth:
Excavating and pouring a new foundation: Structurally the cleanest method, but involves cutting open the existing slab, disposing of concrete debris, adding rebar, pouring fresh concrete, and waiting weeks for curing. Added to this is shop downtime. For an area of roughly 2 × 4 meters, this is a major construction project – and with underfloor heating, it is completely impossible.
Reinforcement brackets: 999 € extra charge, installed alongside the lift, with zero structural construction downtime.
Freestanding 4-post lift: Requires no structural floor anchoring, but consumes substantially more footprint and restricts free wheel-hub access.
Mobile column lifts: Highly versatile, but represents an entirely different workflow – and rarely the preferred primary choice for everyday vehicle service.
Whenever dealing with a "thin yet solid slab", the reinforcement bracket is almost always the most cost-effective solution.
How to verify your floor suitability
1. Measure slab thickness: The easiest way is inspecting an existing opening: floor drain, cable trench, or door threshold. If no opening is visible, a small core drill test provides an exact measurement.
2. Check reinforcement: The drill core will reveal rebar layers immediately; alternatively, use an inductive rebar scanner. A single layer is insufficient – two layers are mandatory.
3. Review building documentation: For halls built within the last 25 years, concrete grades and static specifications are typically recorded in structural records.
4. In case of doubt, consult a structural engineer: For aged floors, unverified reinforcement, or layered floor constructions, a structural assessment is a small price to pay compared to purchasing a lift that cannot be commissioned.
Frequently asked questions
Conclusion
The reinforcement bracket solves a major technical obstacle that has derailed countless workshop and garage builds: a thin concrete slab combined with the need for a barrier-free 2-post lift. Provided the 100 mm slab is poured in C35 concrete with two layers of mesh reinforcement, this 999 € upgrade saves thousands on concrete excavation and floor restoration.
Unsure whether your floor meets the requirements? Send us your floor specs – thickness, construction year, and whatever details you have on the reinforcement. We will give you a transparent assessment of feasibility.
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