BT-W809

Reference Standard: Relevant material and performance testing standards should be confirmed according to the final door assembly and project requirements; the available catalog evidence does not identify a specific testing standard for these window models. Garage Door Windows: Read Overall Size and Opening Size Separately For garage door windows, the overall window dimension and the required door-panel opening are not automatically the same specification. The catalog identifies four separate models—BT-W806, BT-W807, BT-W808, and BT-W809—but only BT-W808 and BT-W809 include a stated opening size. That distinction matters whenever a buyer is preparing a replacement request, checking a drawing, or defining a new door-panel project. An overall dimension describes the catalog-listed size … 続きを読む