Modified 8 Door NDCBU Mailbox Rear Loading – Local Postmaster Approval Required H8MNDCBU7 [ enlarge ] Item Id: 7214837 Qty :   Four style B doors . 4 doors. Pedestal Included. "B" door size: 5"H x 12.5"W x 15"D Unit Size 24-1/8"H x 13-15/16"W x 15"D Rear Loading – Standard Aluminum/Silver Finish Top photo shown is of a standard 8 door unit. Qty. 1-2 $779.50; Qty. 3+ Call.