ᐅ Is there a guide for building an IKEA BESTA as a lowboard with reinforcement?

Created on: 9 Oct 2024 18:27
L
leoaimar
I am planning to use my existing IKEA BESTÅ system as a lowboard and am looking for reliable guidance or recommendations on how to reinforce this piece of furniture so it can safely support heavy equipment like TVs and sound systems. The standard BESTÅ modules are usually not designed for high loads, and I want to avoid any sagging or instability in the lowboard. Are there proven methods to make the shelving unit more stable, for example with additional reinforcements, braces, or other measures? I am particularly interested in detailed instructions or step-by-step tips that go beyond general advice. If anyone has personal experience or technical insights regarding the materials and connection types (screws, metal brackets, etc.), I would greatly appreciate it.
T
tra_nina
9 Oct 2024 21:00
From a technical perspective, a plywood back panel is indeed preferable, as it provides higher shear and bending strength. MDF boards tend to deform more easily under load. The attachment of a central brace should be done using Phillips wood screws with a length of 50–60 mm (2–2.4 inches), driven directly from below into the supporting panel. This ensures the distribution of tensile and compressive forces and reduces deflection. It is important to make sure that the screws are not placed too close to the edge to prevent chipping.
L
leoaimar
10 Oct 2024 08:11
Thank you for the previous advice; it really helps me move forward. Regarding the visual design: Has anyone had experience with whether attaching a plywood or solid wood panel changes the appearance significantly? My goal is to keep the lowboard as clean-looking as possible, but right now stability is more important to me.

Are there any ideas on how to add extra reinforcement in a way that it remains not or barely visible later on?
K
Kinbu
10 Oct 2024 09:34
If you want to keep the reinforcement discreet, I recommend the following approach:

- Use thin plywood panels in a suitable, possibly painted color for the back panel
- Insert them from the back so they are not directly visible in the room
- Attach reinforcements inside with metal brackets and screws that are not visible from the front
- A thin strip as a central brace can also be mounted from the back if the furniture is freestanding

This way, the appearance is almost maintained while the stability increases significantly. For the top, you can often simply use a glued wood panel as a cover that fits flush.
L
leoaimar
10 Oct 2024 11:56
Kinbu schrieb:
If you want to make the reinforcement less visible, I recommend the following approach:

That sounds like a good compromise between stability and appearance, thank you! Are there specific types of metal brackets that are better suited for attaching, or is a standard steel angle from the hardware store sufficient?
tra_nina schrieb:
The attachment of a central support beam should be done using cross-head wood screws with a length of 50-60 mm (2-2.4 inches)

What is the minimum thickness the wooden central support beam should have to effectively prevent sagging?
J
Jensson
10 Oct 2024 13:15
Regarding the metal bracket question: Standard steel brackets from the hardware store are usually sufficient if they have a thickness of at least 2-3 mm (0.08-0.12 inches) and are secured with appropriate screws. Make sure they are rust-resistant, especially if the furniture corners will be heavily loaded.

The center support should be at least 18 mm (0.7 inches) thick, ideally made of beech or a similar hardwood with high strength. A width of 40-50 mm (1.6-2.0 inches) is a good guideline to ensure adequate stability.

In short: steel brackets combined with an 18 mm (0.7 inches) plywood support work very well for the BESTÅ lowboard.
G
GALEO4
10 Oct 2024 14:38
I always find it quite curious how much we push the material limits with IKEA products. BESTÅ is simply not designed as high-end furniture. Most people reinforce it from the back and basically turn it into a custom-built piece. Why not just build something yourself from the start if stability is important? But of course, if you like the IKEA design, you can modify it as much as you want.