This shelf installed on the wall saves me a lot of space. (I rent an apartment in New York, and because of the high housing prices, I can only rent a small apartment.) It is relatively thick and of course a little heavy, but it does not affect its stability at all. As long as you don't put too heavy things, there is no problem at all if you put things all over it. Another feature of this shelf is that it can be folded and made smaller. I am still very satisfied with this shelf. It is easy to install. The only drawback is that there are more screws. Maybe it is also to make the shelf more firmly fixed to the wall. It is quite large, about L89cm*W60cm. So you can put a lot of things on it.