Very well built dog house. "4-H project" 2x4 walls and rafters with R30 insulation. 3/4 in floor on 4x4 treated lumber. 5/16 plywood inside walls and 3/8 siding on the outside. 12 in soffits, shingles, pine trim and a whole lot more. Brand new dog door, carpet, and has been water sealed. This house is very well built and also very heavy. $550 in material and no labor included. If you spoil your dog, this is the house for your pet. Inside measurement is 42"deep x 32"tall x 29" wide.