Good morning everyone, I currently have the problem that the shelves of my IKEA Billy bookcase sag as soon as I place even moderately heavy books on them. Therefore, I am specifically interested in: Which methods actually help to effectively prevent or fix the sagging of the Billy shelves? I am looking for sustainable solutions, ideally without having to completely disassemble the bookcase, and technical or DIY improvements are also welcome. What experiences or tips can you recommend, especially regarding the load-bearing capacity and durability of the shelves? Thanks in advance!
There are several proven methods to prevent the shelves from sagging in Billy bookcases. A particularly effective approach is to add additional central supports beneath the shelves, such as slats made of sturdy wood or metal profiles that are screwed crosswise under the board. Alternatively, thin plywood or MDF panels can be placed underneath to increase load-bearing capacity. It is also important that the shelves are installed properly and, if necessary, the holes for the shelf supports are checked and readjusted, as uneven weight distribution can contribute to sagging. Ultimately, replacing the shelves with sturdier models, which IKEA sometimes offers as accessories or replacements, can also help.
sarla schrieb:
to add extra bearing supports under the floors – sure, that’s the simple, conventional method. But honestly: why bother modifying the Billy shelf? It’s not exactly a high-end piece of furniture. If you really want sturdy shelves, you should just buy something else, right? A bit of sagging is normal when using cheap particleboard.To effectively and permanently prevent sagging of the Billy shelves, I recommend a combination of reinforcement and material assessment. First, you should check how much load the shelves will carry and whether the existing shelves correspond to the usual panel thickness (about 16 mm (5/8 inch) particleboard). For heavy use, I suggest adding an additional support beam underneath the shelves—ideally made from aluminum profiles with grooves that can be cut to size. Installation can be done either by screwing it to the back or using decorative clips. Alternatively, stronger plywood panels (multiplex) can be cut to size at a hardware store and used instead of the original shelves. Make sure to pay attention to the panel quality to avoid warping. Important: all adjustments must be measured precisely since the Billy shelving system relies on standardized dimensions. If the shelf allows, you can also add vertical supports under the shelf for additional bottom-up support. My question to the original poster is: How heavily is the shelf used, and what is the expected maximum load?
kulau schrieb:
How frequently will the shelf be used and what is the expected maximum load? Good question: The shelf is in my home office and will mainly hold books, with each shelf supporting up to 4-5 kg (9-11 lbs), so about 30-40 kg (66-88 lbs) per shelf in total. This load is higher than for purely decorative purposes, but of course, I don’t want to overbuild. The shelves are standard particleboard from Billy, about 16 mm (0.6 inches) thick. I’m therefore looking for methods to safely support this load and effectively prevent sagging.Similar topics