The side frames are usually of an "A" frame configuration and support the appropriate high grade steel load bearing "I" beam.  A choice of casters are available, either durable cast iron or robust polyurethane tyred with the option of screw down parking jacks.  Strong, safe and completely mobile with capacities up to 5 tonne safe working load. .Gantries are custom built to your specifications Consult us for a bespoke solution to your needs