This house is built to be dismantled and moved (not on a trailer)all lumber used is overkill size !(it was first built for wood workshop perpeses) walls are 4x4 .the floor joists are 4x6s , grooved in 6x6s,the floor is 1inch plywood,all the structure is tongue and groove, 3/8 lag screws every part is marked and has a specific place ,it's insulated whit styrofoam, trusts are expose ,made of 4x6s and 4x4s ,the cabin is 10x15ft.the extension in front is 10x20 ,the work is not complete,I have all lumber to finish it ,all that's missing is A couple sheets of plywood and a few metal roofing sheets, otherwise 13,000$ and you handle the move