Labels:diagram | text | technical drawing | plan | sketch | schematic | drawing OCR: 98,3/4 84,3/8 4 4 X 4 4 X 4 4 X 4 74,7/8 51,1/8 27 ,3/8 3 1/2 15,7/8 /2-1 - 19 1/2-1| |- 20 1/2-| | 16 1/2+ DOOR SICE REMOVE THE 4. BLOCKS INDICATE; AFTER INSTALLING THE L BOLTS. SECURELY NAIL DOWN THE REMAINING BLOCKS, - 16" OOR BEAM SIDE VIEW