Structurally answer Swiss thick shelving material discretion author Kinematics
Black Wooden Shelf Board - D300mm - 19mm Thick - Choice of various widths
Heavy Duty Shelf Brackets With Lip, 5mm Thick, Black Metal Industrial Shelf Supports, For Scaffold Board Shelving,DIY Open Shelving,with Matching Screw(Size:25cm) : Amazon.co.uk: DIY & Tools
Make Your Own Heavy Duty Shelving Unit - Vertical storage for your shop or garage
Wall Mounted Shelf Upright 710mm Heavy Duty - Maple Leaf