ᐅ Are there any installation tips for Ikea PLATSA units in older apartment buildings?

Hello everyone,

I am planning to install an IKEA Platsa system in my older apartment, but I have some concerns regarding the typical conditions found in such buildings. The walls are often uneven, sometimes a bit crumbly, and there isn’t always a flat surface suitable for furniture installation. Additionally, I want to make sure that the modularity of the Platsa system is used as effectively as possible without compromising stability.

My specific question is: Are there any particular installation tips or special methods for the IKEA Platsa system that work especially well in older apartments? For example, regarding wall mounting, redirecting the modules, or dealing with uneven surfaces?

Any advice— including recommendations on tools or adapters—is welcome, as well as suggestions on what to avoid in these situations. Thanks in advance!

Siegbert schrieb:
The walls are often uneven, sometimes crumbly, and do not always provide a flat surface for mounting furniture.

That hits the nail on the head. This is exactly where many make the mistake of assuming IKEA furniture is equally suitable for every installation site. Assembly systems like PLATSA are designed for modern, relatively simple wall types. The fact that reinforcements might be needed in older buildings is often overlooked.

My provocative advice: If you live in an older building, don’t rely solely on the included screws and anchors. Instead, I recommend thoroughly testing the wall in several places first—using something like a rotary hammer and small test anchors. If the wall does not hold, I would switch to custom wood constructions or freestanding frames. Believing in wall-mounted shelves on crumbly walls in older buildings is sometimes just naive.

Of course, one could argue that the modular design of PLATSA solves nearly all problems. However, this only holds true to a limited extent if the base, meaning the wall, is not stable. No amount of fine-tuning will help in that case.

I would like to follow up here and offer some technical suggestions that can be particularly helpful when installing IKEA PLATSA units in older buildings.

To start: The condition of walls in older buildings often means
- uneven plaster thickness,
- sloping surfaces,
- possible cavities behind the plaster,
- old brick masonry structure,
- and potentially even cracks.

Therefore, the first step should be a thorough wall inspection before installation.

Important points:
- If possible, use hammer-in anchors for older walls, as these hold better than standard plastic anchors.
- If you notice unevenness during installation, it is recommended to use shims or flexible spacers behind the metal profiles of PLATSA. This allows the furniture to be aligned straight despite wall irregularities.
- Alternatively, consider creating a substructure. A thin board or plywood panel fixed to the wall can serve as a mounting surface, so the system is not directly exposed to the unevenness.
- Check the fastening materials before installation, since IKEA usually provides standard anchors with PLATSA. These are often insufficient for older walls. Anchors designed for porous and cracked walls are more suitable.

Regarding stability and modularity:
- I recommend assembling the individual modules inside the apartment before mounting. This way, you can identify potential problems with fitting into angled corners or uneven walls.
- Additionally, use the metal connectors offered by IKEA to securely and flexibly join the modules.

Finally, a question for the thread starter: What do the actual wall surfaces look like? Are there many moldings, door frames, or other architectural features that need to be taken into account?

Filippo schrieb:
If you notice any unevenness during installation, we recommend using shim plates or flexible spacers behind the metal profiles of PLATSA.

Exactly. Shim plates are the simplest solution.

Also, always use a spirit level tool to ensure the modules are properly aligned.

And: pre-drill holes to avoid damaging the material.

Additionally, I would like to offer a small installation checklist specifically tailored to the challenges of older apartments:

- Before installation, gently tap all wall areas with a stick or screwdriver to detect hollow spots.
- Use appropriate heavy-duty anchors for the specific wall type, taking into account crumbly surfaces and material.
- For IKEA mounting kits, consider bringing alternative anchors designed specifically for older building structures.
- Visualize the mounting locations in advance to facilitate later adjustments to baseboards, radiator niches, or door frames.
- First, install the base frames, align them using a good level, and adjust with anchor shims if necessary.
- If needed, use installation aids such as clamps or supports for temporary fixing during screwing.

Important: Do not rely solely on wall stability; also transfer part of the furniture’s weight through foot frames or additional floor fastenings.

These tips have already helped many, and I hope they will be useful for you as well.