ᐅ How do you properly attach the back panel of the IKEA Brimnes furniture?

Hello everyone, I’m currently facing the challenge of securely and neatly attaching the back panel of my IKEA Brimnes cabinet. The instructions are available, but I find them somewhat unclear, especially regarding the tension and correct alignment. My main question is: which screws or nails should I use for the back panel to ensure long-term stability without damaging the material or causing unnecessary warping of the panel? Are there any tips on how to properly position the back panel beforehand so that the furniture doesn't wobble or the boards don’t warp after assembly? I look forward to your experiences and suggestions.

For the back panel of Brimnes, you usually need the thin, long nails included by IKEA. It’s best to place the back panel flush and then drive the nail through the center of the panel into the frame. Be careful not to nail too close to the edge to avoid splitting the panel.

Hello SIN52, I can understand your concerns. The back panel on the Brimnes is really thin and can warp easily if it’s not secured properly. Here is a short guide:

- Place the back panel flat and exactly against the cabinet frame; no gaps should remain.
- Use the carpenter nails included in the package, as they are perfectly matched.
- Nail approximately every 20-25 cm (8-10 inches) along the edges. Too few nails can cause warping, while too many might damage the panel.
- Be careful not to hammer too hard to avoid puncturing or splitting the thin back panel.

Additionally, you can apply some hand pressure to hold the back panel tight, which will make it much more stable. If the floor isn’t perfectly level, you can attach small anti-slip pads under the cabinet to prevent wobbling.

I would like to add that the tension of the back panel also significantly contributes to stability. It is often helpful to intentionally apply slight pre-tension to the back panel before nailing it in place. To do this, position it firmly against the carcass, adjust it slightly into the correct position if needed, and then nail it starting from the center along the edges. This prevents the back panel from developing sagging areas over time. Be sure to follow the specified nail positions to ensure the load is evenly distributed.

Mekau schrieb:
For the back panel of the Brimnes, you usually need the thin, long nails that IKEA provides.

To me, this approach seems way too simplistic. In my opinion, it’s a design flaw to simply nail the thin back panel in place. This method only works reliably if you have adjustable furniture legs or if the back panel is additionally secured with brackets. Otherwise, many risk that the panel will warp over time or the nails will loosen — IKEA is definitely cutting corners in the wrong area.

NOAHSAU schrieb:
In my opinion, it is a design flaw to simply nail the thin back panel like that.

Although I understand the criticism of this construction method, I see the assembly a bit more nuanced. It is important that the back panel is not just nailed, but that it is properly aligned and lies flat. For larger pieces of furniture, the corners can also be reinforced with brackets, which significantly increases overall rigidity. For a small shelf or sideboard, however, nailing the back panel is usually sufficient if done properly.