Started this late yesterday. Floor was hammered, rotted & patched. I cut out the flat part, added a few cross member sections where it was smashed down, now I'll weld in a new floor. It will follow the bend up the side about 2" above where the 45* pc. meets the side.

One flat sheet centered & then I bent up two side pcs. The reason for doing it this way is handling the side pcs. while bending is easier as there is no crane or fork truck access to the brake I use. It requires an extra seam but the easier handling makes up for it.