ᐅ Preventing Shelf Sagging in BILLY Shelves – How to Avoid It?

Hello everyone,

Some time ago, I bought a BILLY shelf from IKEA, which I mainly use for storing books and heavy binders. Unfortunately, I noticed that the shelves bend quite a lot under heavier loads, which not only looks unattractive but can also affect the overall stability.

My question is: How can the sagging of the shelves in a BILLY unit be effectively prevented? Are there proven methods or additional reinforcements that can be added without compromising the shelf’s appearance or function? I would really appreciate specific tips, including material suggestions or sources.

Thank you in advance!

Hello,

to prevent the shelves of the BILLY unit from sagging, I recommend using additional metal brackets or shelves made of stronger material. A uniform distribution of weight also helps.

Another option is to install a central support on the wall if the shelving unit is very wide.

meson schrieb:
To prevent the bending of the shelves in BILLY units, I recommend using additional metal brackets or shelves made from stronger material.

I would like to add that the BILLY shelves are made of particle board and are relatively thin (about 16 mm (0.6 inches)), which makes them prone to bending under heavy load. A proven method is to install so-called shelf supports with a central leg or a full back panel to increase the load-bearing capacity of the shelves.

Alternatively, attaching acrylic strips or narrow wooden battens underneath the shelves can improve load capacity without significantly affecting the visual appearance. Installing a center support is especially useful for shelf widths of 80 cm (31.5 inches) or more.

Using replacement boards made of plywood or MDF with a greater thickness (about 18–22 mm (0.7–0.9 inches)) is also a durable solution. However, these need to be cut precisely and may be more costly.

Fareo65 schrieb:
A proven method is to install shelf brackets with a center support or a continuous back panel

That’s right, back panels not only add stability but also prevent wobbling.

I reinforced my BILLY shelves with thin metal braces – it even looks almost professional 😉

Here’s a practical tip: If you don’t place the shelves too deep, meaning you don’t always use the same holes for the brackets, the load distribution improves noticeably.

Of course, it also helps to put heavier items on the lower shelves. Stacking book pallets on the top shelf isn’t really ideal 😉

Good luck, and don’t worry—these small tricks will make your shelf sturdy enough for everyday use!