This triangle birdhouse is built from slightly rough cedar planks, giving it a rustic look and feel. The rough planks are also easier for the birds to cling to when they come in for a landing. This triangle cedar birdhouse is designed to attract a wide variety of different wild birds. The unique shape of both the house and the triangle entry hole really make it stand out in the garden. There is even a tiny, triangle shaped vent hole in the back. The birdhouse is 8 inches per side, and approximately 6 inches deep. There is is a metal hanger on the back for mounting. The hole is approximately 1 1/2 inches, to accommodate a variety of wild birds. All the pieces of the birdhouse are both glued with non-toxic, weatherproof glue and nailed with galvanized finishing nails. This listing is for one triangle cedar birdhouse.