Gardirect Wild Bird Classic Nesting Box, Bird House for Blue Tit, Sparrow (Pine) This nesting box is made of pine. A traditional and versatile bird box that can be placed in any garden. The equipped hasp can keep its opening shut for the safety of birds. You can use the back slot to hang it on a suitable fixture or use a deck screw for extra support. Dimensions: 5-inch in length, 5-1/2-inch in width, 8-5/8-inch in height.