Don't think too much, use 5inch-Swivel-Caster-049 to get your DIY move and manuver around. This wheel caster has a wheel diameter of 125mm or 4.921" inch in inches. Dimensions of the caster wheel is 45mm (1.772" inch). The overall height of the caster is 167mm or 6.575" inch. Mounted via a Top Plate that has the size of 100mm x 115mm and the holes distance of 75mm x 85mm. Rolling with a wheel core material of co-polypropylene and a co-polypropylene tire rolled over Double ball beaing. Here come the maximum load that should be applied on every wheel, remember to add safety factor, when calculating the load capacity 617 lb with a Swivel type. Temperature range = -40 to 180 F. Remember, you will have to buy the 5inch-Swivel-Caster-049 in order to have it :).