Specification: SERIES H-W ACCESS DOOR (HEAVY DUTY CHANNEL FRAME - H20) List Specification: 1. Cover Leaf (s): 1/4" (7mm) aluminum diamond plate. 2. Channel Frame: 1/4" (7mm) aluminum with continuous anchor flange and a 1-1/2 inch (38mm) drainage coupling located in the front left corner of frame. 3. Load Rating: H-20.Uniform live load with a maximum allowable deflection of 1/150 of the span 4. Locking System: Type 316 stainless steel slam lock with removable key. 5. Cover equipped with the following stainless steel features: spring assists, T-316 heavy duty hinges, T-316 tamper proof attaching hardware, automatic T-316 hold open arm with aluminum latch. 6. Guarantee: Access covers shall carry a lifetime guarantee against defects in material and/or workmanship.