Build your own vegetable cages with aluminium tubing. Our 16mm poles are perfect for the uprights(legs) or a cage however you will need to purchase our 13mm poles for the crossbars and length bars. You will also require joiners or buildaballs. If you need an exact size for a raised bed and the pole sizes do not suit, go slightly larger then just cut the poles, this is very easy to do. The 16mm poles are pushed directly into the soil so you will loose some height depending on which tube you choose. Please see guide below: 600mm Tube - Push into the soil 100mm to give you a 500m erected height 900mm Tube - Push into the soil 200mm to give you a 700m erected height 1.2m Tube - Push into the soil 300mm to give you a 900mm erected height 1.5m Tube - Push into the soil 300mm to give you a 1.2m erected height Please note: We don't recommend going any higher than 1.2m in height with our 16mm aluminium tubes. If you require a taller frame we would recommend looking at our 19mm tubes and connectors.