Weld tube steel to the frame of a 6- or 8-foot wide trailer, construct the wood shanty frame, install the floor, panel, insulate the shanty, and finish the outside with suitable siding and roofing material to build an ice shanty on wheels. The shanty must remain under the maximum towing width and be equipped with necessary safety lighting as required by your specific state's traffic laws. Basic carpentry skills and some welding skills also are required.
Most ice shanties are between 6 and 8 feet in width and from 8 to 16 feet in length. Choose the appropriate size trailer for the base of your shanty depending on the size being constructed, and make sure it has a removable tongue and a tongue jack. Weld tube steel supports across the trailer to make a solid foundation, and do not use angle iron because it can't support the weight. Convert the wheel axles so the trailer can drop flat against the ice.
Building the house portion is just like building a house. Construct the wall frames using 2-inch by 2-inch premium lumber on 16-inch centers. Use 2 by 4-inch boards for the corners and 2 by 6-inch lumber for the rafters. Use kraft-faced R-19 insulation for the roof and pink or blue foam board for the walls with a Tyvek wrap on the outside. Cover the outside walls with smooth aluminum cargo sheet siding, roof the house with rubber roofing, and cover the inside walls with 1/4-inch paneling.