Figure 6-27.—Door clearances.Hingesfigure 6-27. The clearance and location of hinges,lockset, and doorknob may vary somewhat, but they aregenerally accepted by craftsmen and conform to mostmillwork standards. The edge of the lock stile should bebeveled slightly to permit the door to clear the jambwhen swung open. If the door is to swing across heavycarpeting, the bottom clearance may need to be slightlymore.When fitting doors, you should temporarily nail thestop in place; this stop will be nailed in permanentlywhen the door has been hung. Stops for doors insingle-piece jambs are generally 7/16 inch thick andmay be 3/4 inch to 2 1/4 inches wide. They are installedwith a mitered joint at the junction of the side and headjambs. A 45° bevel cut at the bottom of the stop, about1 to 1 1/2 inches above the finish floor, eliminates a dirtpocket and makes cleaning or refinishing of the flooreasier (fig. 6-26, view A).Some manufacturers supply prefitted doorjambsand doors with the hinge slots routed and ready forinstallation. A similar door buck (jamb) of sheet metalwith formed stops and casing is also available.DOOR HARDWARE INSTALLATIONHardware for doors is available in a number offinishes, with brass, bronze, and nickel being the mostcommon. Door sets are usually classified as entry lockfor interior doors; bathroom set (inside lock control withsafety slot for opening from the outside); bedroom lock(keyed lock); and passage set (without lock).As mentioned earlier, doors should be hinged so thatthey open in the direction of natural entry. ‘hey shouldalso swing against a blank wall whenever possible andnever into a hallway. The door swing directions andsizes are usually shown on the working drawings. The“hand of the door” (fig. 6-28) is the expression used todescribe the direction in which a door is to swing(normal or reverse) and the side from which it is to hang(left or right).When ordering hardware for a door, be sure tospecify whether it is a left-hand door, a right-hand door,a left-hand reverse door, or a right-hand reverse door.You should use three hinges for hanging 1 3/4-inchexterior doors and two hinges for the lighter interiordoors. The difference in exposure on the opposite sidesof exterior doors causes a tendency to warp during thewinter. Three hinges reduce this tendency. Three hingesare also useful on doors that lead to unheated attics andfor wider and heavier doors that may be used within thestructure. If a third hinge is required center it betweenthe top and bottom hinges.Loose-pin butt hinges should be used and mustbe of the proper size for the door they support.For 1 3/4-inch-thick doors, use 4- by 4-inch butts; for1 3/8-inch doors, you should use 3 1/2- by 3 1/2-inchbutts. After the door is fitted to the tied opening withthe proper clearances, hinge halves are fitted to the door.They are routed into the door edge with about a3/16-inch back distance (fig. 6-29, view A). One hingehalf should be set flush with the surface and must befastened square with the edge of the door. Screws areincluded with each pair of hinges.6-18
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