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Horizontal  Plate  Layout
Figure  1-43.Measurements  for  windows  and  doors.

Builder 3&2 Volume 02 - Construction manual for building structures
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Figure  1-42.—Starting  measurement  for  interior  wall. marked for the first stud to be placed 15 1/4 inches from the outside edge of the panel thickness on the first wall. This layout allows the corner of the first panel on the second wall to lineup with the edge of the first panel on the second wall. Also, the opposite edge of the panel on the second wall will break on the center of a stud. A procedure for laying out studs for interior walls (partitions) is shown in figure 1-42. If panels are placed on the exterior wall first, the wall plates for the interior wall are marked for the first stud to be placed 15 1/4 inches from the edge of the panel thickness on the exterior wall. If panels are to be placed on the interior wall, the wall plates of the interior wall are marked for the  first  stud  to  be  placed  15  1/4  inches  from  the unpaneled  exterior  wall. If drywall or other interior finish panels are to be nailed to an adjoining wall (fig. 1-42, view A), you must measure 15 1/4 inches plus the thickness of the material. When panels are to be nailed on a wall first (view B), measure and mark the 15 1/4 inches from the front surface  of  the  bottom  plate.  These  procedures  ensure stud alignment remains accurate throughout the nailing process. Rough  openings  for  doors  and  windows  must  also be  marked  on  the  wall  plates.  The  rough  opening dimensions for a window (fig, 1-43, view A) or wood door (view B) are calculated based on the window or door  width,  the  thickness  of  the  finish  frame,  and 1/2-inch clearance for shim materials at the sides of the frame.  Some  blueprint  door  and  window  schedules  give the rough opening dimensions, simplifying the layout. A rough opening for a metal window often requires a 1/2-inch clearance around the entire frame. When the measurements  are  not  given  in  the  window  schedule, take   them   from   the   manufacturer’s   installation instructions  supplied  with  the  windows. A  completely  laid  out  bottom  plate  includes markings for corner posts, rough openings, studs, and cripples. The corner posts are laid out first. Next, the 16-inch marks for the studs and cripples are marked, and then the marks for the rough openings are made. Some Builders prefer to layout the rough openings before the studs and cripples are marked. There is, however, an advantage to laying out the 16-inch OC marks first. Studs and trimmers framing a door and window often fall very close to a 16-inch OC stud mark Slightly shifting the position of the rough opening may eliminate an unnecessary stud from the wall frame. Vertical Layout Vertical layout is the procedure for calculating the lengths  of  the  different  vertical  members  of  a wood-framed wall. This makes it possible to precut all studs, trimmers, and cripples required for a building. Some  blueprints  contain  section  views  giving  the exact  rough  heights  of  walls.  The  rough  height  is  the distance from the subfloor to the bottom of the ceiling 1-24







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