After some consideration we decided against it and a wooden sandpit (splinter-risk, fading, etc.) us for this sandbox. The structure is very easy and the sandbox quite stable, even if you as an adult once it is made. We have a pond fleece foil underneath placed (as others have advised). I hope the color is still as beautiful vigorously. Small minus for the cover, which has unfortunately been a little deformed, but still working - (! And Cats) rain and leaves it holds out.