Medium boxes are 6-5/8" deep and are milled with 5/8" frame rests, and deep profiled, uppercut handholds that are easy to grip and allow water to run off the bottom. With a full top joint plus snug finger joints all the way around, these boxes are built to last. Made from USA pine wood. 5/8" routed frame rest that ensures the correct location of the frames from top to bottom. Painted with two coats of white latex and assembled with metal staples. Comes with 10 standard medium frames with double waxed coated plastic foundation (foundation color may vary).