Side loading moving boxes, 36"L x 5"W x 36"H, Kraft, (Pack of 20). these boxes open along the ends for easy insertion of frames, mirrors and other flat products. Designed with full overlap (F.O.L.) flaps for added protection on outer edges. 3.8 Cubic foot capacity. Manufactured from 200#/ect-32 Kraft corrugated. Boxes are sold in bundle quantities and ship flat to save on storage space and shipping.