Tool-Free Quick-Mount system allows for easy, one-person mounting of the center section to the backpan on the jobsite Welded construction provides 150 lb. weight capacity Available in 15 and 20 useable depths Center section hinges for left or right opening Abundant lacing points throughout the interior facilitate cable management , , 1 & 1 electrical knockouts and 5/8 UHF/VHF antenna knockouts on top & bottom, easily removable for cable pass-through 10 x 10 laser knockout opening in the backpan for electrical pull-box Durable black textured powder coat finish