Completely gutted 16' x 10' room. House has been jacked up as far as it could go. Removed the lathe and plaster (was in very poor shape) Used laser level to find low spots on floor and ceiling. Sistered 2 x 6's on the old floor joists and 2 x 4's and 2 x 6's on the ceiling. Put 3/4" plywood on...