ᐅ Is it safe to assemble Ikea BESTA furniture using alternative screws?

Hello everyone,

I am planning to assemble some Ikea Besta furniture and have a specific question: Is it safe to use alternative screws instead of the original screws supplied by Ikea?

I understand that Ikea selects screws that match each piece of furniture, but currently, for stock reasons and better availability, I have other screws on hand that have similar dimensions and types. Still, I am concerned whether this might affect the furniture’s stability or safety.

Perhaps someone here has experience with whether these alternative screws meet the same requirements (material, load capacity, thread type, length, etc.) or if there are clear risks regarding durability, load-bearing capacity, or even accidents if you do not use only the original screws?

I look forward to your opinions, especially from those with practical experience in furniture assembly or specifically with Ikea Besta.

Thanks in advance!

gopau50 schrieb:
Is it safe to assemble the furniture using alternative screws, meaning not using the original screws supplied by Ikea?

Hey, great question! 😄 Basically, if the alternative screws have exactly the same dimensions (length, diameter), the same material, and of course the same strength rating, there’s nothing preventing a sturdy piece of furniture.

But be careful: Ikea specifies those screws for a reason – they are matched to the specific material (chipboard, MDF) and the construction. A screw that’s too long or too thick can split the wood, while one that’s too short or weak will affect the load-bearing capacity.

In short:
- Alternative screws are fine if they fit exactly
- Quality and strength must be adequate
- It’s best to compare carefully beforehand and, if possible, test on a spare piece

I sometimes use other screws myself, but only when I’m sure they are identical in specs. Otherwise, I prefer to use the originals—you definitely don’t want your place falling apart! 😅

praWarre69 schrieb:
If the alternative screws really have exactly the same dimensions (length, diameter), the same material, and of course the same strength class, there is nothing standing in the way of a stable piece of furniture.

This is an important point! I’m happy to explain what you should pay attention to when replacing Ikea screws:

- Material: Most Ikea BESTA screws are made of steel with zinc plating or stainless steel, which ensures corrosion resistance.
- Strength: Steel with a minimum strength rating is crucial. Ideally, use screws marked 4.8 or higher, so they can withstand tensile and compressive forces.
- Dimensions: Length and diameter must match exactly, for example M4 x 30 mm (1.2 inches), so they don’t exert excessive splitting force on the wood.

Common mistakes:
- Screws too long → wood can split or crack
- Screws too short → poor connection
- Low-quality material → screw can stretch or break

My advice: It’s best to get replacement screws from a specialist retailer, with exact dimensions and strength specifications. Ideally, assemble a test piece first and check for load-bearing capacity.

Summary: Safety is ensured when these factors are carefully considered. You should never rely solely on the appearance of an alternative screw.

gopau50 schrieb:
Is it safe to assemble the furniture using alternative screws, meaning not using the original screws supplied by Ikea?

It is only safe if the replacement screws match the originals exactly in material, size, and strength. Otherwise, it is better to use the original screws.

praWarre69 schrieb:
Alternative screws are possible if they fit exactly

I think that's a very good point. I can imagine many people want to use screws they already have for practical reasons, especially if the originals are lost or if they want to do some DIY.

But you really have to be careful – I once tried to repair a furniture joint with a weaker type of screw and had to tighten it more than once before it was reasonably stable. That’s frustrating because you usually can’t tell if the screw is holding properly until the furniture is under load.

Moreover, lack of stability can actually lead to everyday problems – doors that don’t close properly or shelves that give way under weight. Depending on how heavily the furniture is used, even a small insecurity can quickly become annoying or pose a safety risk.

So if you want to use different screws, check their strength and dimensions carefully beforehand. Sometimes it’s worth getting the originals rather than improvising. Better to spend a few extra dollars for safety.

If you need replacements, it might also be worth a quick visit to a hardware store with a specification sheet or to check screw packaging for load capacity details. That way, you’ll have more security.

All the best with your project!