Large wall mount poly nesting box. Works perfect for full sized laying hens. Made of high-denisty impact resistant polyethylene that is easy to keep clean. Mounts securely on wall 16 on center (standard stud spacing) with slide- type screw holes.Single Nesting Box16.5 in. L x 15.88 in. W x 19.75 in. HHigh density impact-resistant polyethyleneRemoves easily from wall for cleaningWill not rust rot or corrodeMounts securely with slide-type screw holesAttach to 16 in. on center studsCan be mounted in rows or stacked to add as many nesting boxes as you likeSloped roof prevents roosting on topVentilation holes help provide fresh airPerch gives hen a place to land before enteringAs easy to clean as metal units and does not get as cold in the winterFFA licensed productMade in the USA