Self Assembly Ventilated Plastic Shelving Unit 3 Shelf, 4 Shelf, or 5 Shelf Units Available This heavy-duty shelf unit is probably the strongest on the market and is great for the garage, shed or home. Each shelf can hold up to 50kg in weight (evenly distributed). The shelf units come in a variety of heights with ventilated shelves (ideal for use in the greenhouse). The shelf units are quick and easy to assemble (no tools required) or for a super-secure fix you can use the clips supplied to fix the unit back to the wall (minimal tools required). We strongly recommend you screw the shelf unit back to a solid surface especially if loading them with heavy objects. 3 Shelf Self Assembly Ventilated Plastic Shelving Unit (G08143B) Size Check: 80cm (31.5) L x 40cm (16) W x 97cm (38) H 4 Shelf Self Assembly Ventilated Plastic Shelving Unit (G08144B) Size Check: 80cm (31.5) L x 40cm (16) W x 140cm (55) H 5 Shelf Self Assembly Ventilated Plastic Shelving Unit