"Pre-fabricated CM15 cable tray junctions (.120Ø) have a grid pattern of 2 x 2 and are available in standard widths of 2, 4, 6, 8, and 12 with a depth/height of 2 or 4. CM15 tray junctions are 2 feet in length."... Click here for more info on CM15 DROP 2W x 2 Depth 1FT.