CozyCatFurniture Waterproof Insulated Large Cat House for Outside Use WATERPROOF Cat House. Optional Back Door and Vinyl Flaps are Available. Made of Cedar: The wood of choice for long-lasting outdoor use. Thermal-Ply insulation is placed inside the floor, walls and ceiling. Check the other outdoor cat houses we offer here: https://www.amazon.com/shops/cozycatfurniture Ships from Canada unassembled. Simple instructions included for fast assembly with a power screwdriver.