Hi all I want to build a shed in my garden I want to use breeze blocks with a pitched roof no more that 4 mters high up to the pitch it will be approx 20 foot long and 10 foot wide what foundations will i need, and will one course of blocks be ok as I dont need a cavity any help and advise would be apreciated kind regards Steve ![Eek! :eek: :eek:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)