Beckson 10x24" Flush Hatch Horizontal or Vertical-White Textured Non-Skid Surface. O.D. 9-1/2"X23-7/8". I.D.6"X20-1/2". Hole Cut: 6-3/4"X20-7/8". Mounts Vertical or Horizontal. UV Stabilized Material. Invisible Fasteners. Box Dimensions: 24"Lx10"Wx2"H. Weight: 4 lbs.