b. Drywall (Sheetrock) Installation.
The three steps to installing sheetrock are hanging,
finishing, and patching.
(1)
Hanging Sheetrock. Apply sheetrock as follows:
Install sheetrock on the ceiling first. Measure the distance from the inside edge of
the top plate to the outside edge of the second ceiling joist. Measure and cut a piece
48 inches long to the width measured above. Install and secure the sheet to the
ceiling with sheetrock nails. Nail spacing on ceilings is 5 to 7 inches on center.
Determine the starting point of the wall. Using a measuring tape, locate a section
where the studs are 8 foot on center and where a full sheet could be laid horizontally.
Check the layout to ensure that there will be no joints above or below the door or
window openings. Sheets will be installed from the ceiling down to the floor, starting
at the ceiling.
Install the first sheet. With the help of another person, place a sheet of sheetrock in
position so that the edges fall on the center of the studs. Place the sheet snug against
the ceiling, using a hand level to ensure that it is level. Secure the sheet with
sheetrock nails 6 to 8 inches on center, 3/8 inch from the edge. Install succeeding
sheets on the top half of the wall against installed sheets, ensuring that joints fall on
the center of the studs and that proper nail spacing is maintained. Using a utility
knife or sheetrock saw, cut out openings for doors and windows.
Lay out the receptacles. Measure the distances from an inside corner to
both sides of
the receptacle box and record them. Measure the distance from
the installed
sheetrock to the top and bottom of the receptacle box, and record it.
Measure and
mark these dimensions for the receptacle cutout, allowing 1/16-inch
clearance all
around.
Cut out the opening for the receptacle. With a utility knife, drive a hole within the
opening. Using a keyhole saw, cut out the opening. Use a slight undercut bevel so
that the back opening is larger than the front opening.
Install the prepared sheet. Place the prepared sheet in position, ensuring that the
receptacle fits in the opening without breaking the paper. Make adjustments to the
opening if necessary. Secure the sheet to the studs with sheetrock nails. Using a
Surform, smooth the rough edges of the openings as necessary.
Lay out and cut sheets for corner posts. Measure and cut the required number and
sizes of sheets to cover corner posts. Use scrap pieces of material if needed.
2-21
EN 5156
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