Raised Garden Bed 12in Corner Brackets, Set of 4. I bought these brackets to build two raised 4x8x10 garden beds. The brackets take 16 screws each for a total of 64 screws for four brackets. Raised Garden Bed 12in Corner Brackets Set of 4 Please note: You are currently browsing img building a decorative raised garden bed part 1 youtube that is 1280x720px in size. This image is listed in decorative raised garden beds category. Raised Garden Bed 12in Corner Brackets Set of 4, 1280x720 in 81.06 KB.