Storage shed build your own designs – restoration hardware kids bunk beds storage shed build your own designs stanley furniture white bunk beds twin over full bunk. Complete material list, detail drawings and easy follow step-by-step instructions. we’ve got the style and sizes of storage shed plans choose from our large selection. If you are looking for a huge "shed" then the 12×20 shed plans may be your answer. the 12×20 shed has 240 square feet of floor space. these sheds are large enough.