1. The thickness of our door stile and jamb is 50mm or 60mm with the width at 120mm or 150mm on the stile. Or upon request we can custom made the door stile and jamb. Our doors are manufactured in 12 and 13 gauge steel framing. Our metal jamb are manufactured including the threshold. With this we will make easy the delivery and the installation. 2. All the doors will be injected the polyurethane foam for insulation that is pumped into the tube. with this you will avoid excessive sounds and increase energy efficiency. 3. The Q-Lon weather stripping is used around the door frame, glass window frame and Astragal, making the door weather tight. 4. The doors will be double bored with 54mm (2.125 inches) bore, 140mm (5.5 inches) center to center, and 70mm (2.75 inches) backset. Door jambs and semi -stationary door edges need to be bored to accommodate the keeper in for the lockset and deadbolt. In our double doors we use flush bolts. This is a mechanism that locks the inactive door. Posted from China - Fujian on 5 June, 2008
