Made from thick pieces of solid, high grade all natural kiln dried untreated pine. We do not use stains or paint for bunny safety. These bunny rabbit houses are designed to last! Nailed together construction for quality and durability (no staples!). Round Door openings on both ends are a large 7 inches and are routered on the edges for smoothness. Cute bunny door and little bunny heart windows on the front give your bun multiple options for running in and out and peeking out at the world! Overall size is a roomy 20” long, 13 wide, and 11" high. The nice thing about this house, is that it has a flat top, allowing your bunny the added option of sitting on top too!. Hand made in northern Wisconsin and personally tested by Whiskers, our own quality control bunny! Shipping: We ship by Ups ground in the contiguous US. Please contact me for shipping quotes to Alaska,PR, or Hawaii as shipping to those states will cost extra. We also custom build to any size you might desire!