The K Flat Wagon started with a sheet of 1/16 mild steel the same size as the deck and then build a frame of 25 x 6 mm mild steel, drilling all the holes for the w irons, tie down points etc before welding the frame together and onto the deck sheet. With the frame complete rivet on the coupler surrounds and the dummy corner brackets. Next mount the W irons to the frame, make the axles and mount the wheels to them, fit the bearings and axle boxes and mount the lot to the wagon.
This photo kindly supplied by Stephen Williams
