frustration

I need a waterproof place to put the cushions from my lovely new garden chairs. I saw this box and decided it was just the job. It is really like huge tupperware...what could possibly go wrong?

Well, it is one inch too short. I can't take it back now that I have opened and assembled it. So instead of it being a really elegant solution to the problem, it will involve bin bags and gaffer tape.... anyone want to buy some over sized tupperware??

Grrrrr.