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However on lower ceilings the jambs can extend 12” for standard lift track w/ 12” radius or 6” for double low headroom track. If sleeve anchors or j-bolts are used to hold the jambs to the wall the wood should be countersunk to where the bolts will be flush with the jamb face and not interfere with the placement of the door track or track brackets. In addition to the “H” pattern on the wall a 2 x 6spring pad should be placed vertically in the center of the opening and extend to the same height as the jambs. However, large and/or heavy doors may require more than one spring pad placed in certain areas other than the center of the door.
If your home is in a hurricane windload zone the state or local building codes and/or manufacturers specifications will normally dictate the number of the jamb sleeve anchors or j-bolts, the size of the
bolts, and the spacing of the bolts for the garage door to meet the required wind speed hurricane rating. When you request an estimate your local garage door dealer can inform you of the type of windloaded garage door required and if your jambs will meet the code that is required in your area.
Most garage door dealers can or will supply and install the weatherseal stop molding (existing molding on replacement doors may be re-used) to seal the outside of the door and to cover the inside corner edge of the jamb.
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