This heavy duty shelf unit is perfect for the greenhouse garage shed or home each shelf can hold up to 50kg in weight evenly distributedthis unit comes supplied with an extra set of feet wall clips and two joining clips this means the shelf unit can be used as a single 5 shelf unit or side by side as a 2 shelf and 3 shelf unitr 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 min