Hi will be building another small shed at top of garden. Area will be 12ft X 8ft. Just before I order some lumber from selco I just need run a few things by you. I won't be doing concrete base like last time. The area has slabs already so plan was 6x2 treated dry kiln ? But don't want it laid on uneven slabs. Thinking out loud I was going to use concrete blocks leftover from my other shed build on all four corners and middle ? So basically it's off the slabs and laid onto the concrete blocks? Your thoughts and suggestions greatly appreciated. Regards .