Don't think too much, use 4inch-Caster-030 to get your DIY move and manuver around. This caster is rolled on a wheel that has 100mm diameter/3.937" inch inches. Dimensions of the caster wheel is 50mm (1.969" inch). The Caster with the wheel from end to end is 142mm = 5.591" inch. This wheel caster can be mounted using a Top Plate with the dimensions of 100mm x 115mm and holes distance of 75mm x 85mm. The caster core is made of Polyurethane and has a Polyurethane tire with a low friction Double ball beaing. Each caster will carry the load of 441 lb and is Fixed type. Last and not least the temperature range = -40 to 180 F. Buy the 4inch-Caster-030 now, just add the quantity to basket and click on Checkout.