A. Confi rm the opening is plumb and level.
Note: It is critical that the bottom is level.
B. Confi rm the door will fi t the opening. Measure
all four sides of the opening to make sure it is 3/4"
larger than the door in width and 1/2" larger in height.
Measure the width at the top, bottom, and center.
Measure the height at the far left side, the far right
side, and in the center.
Note: 1-1/2" or more of solid wood blocking is
required around the perimeter of the opening.
Fix any problems with the rough opening before
proceeding.
C. Cut the water resistive barrier.
1
ROUGH OPENING PREPARATION
Interior
1A
Interior
1B
Exterior
1D
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D. Fold the water resistive barrier. Fold side fl aps into the
opening and staple to inside wall. Fold top fl ap up and
temporarily fasten with fl ashing tape.
For Doors Using Optional Sill Pan Go To Step 1I.
E. Apply sill fl ashing tape #1. Cut a piece of fl ashing tape 12"
longer than the opening width. Apply at the bottom of the
opening as shown (1E) so it overhangs 1" to the exterior.
Note: The tape is cut 12" longer than the width so that it
will extend 6" up each side of the opening.
F. Tab the sill fl ashing tape and fold. Cut 1" wide tabs at
each corner (1/2" from each side of corner) (1F). Fold tape
to the exterior and press fi rmly to adhere it to the water
resistive barrier.
G. Apply sill fl ashing tape #2. Cut a piece of fl ashing tape
12" longer than the opening width. Apply at the bottom,
overlapping tape #1 by at least 1". DO NOT allow the tape to
extend past the interior face of the framing (1G).
In-swing doors: If the wall depth is greater than 5", add a
third piece of fl ashing tape. The fl ashing tape should come to
within 1" of the interior face of the framing.
Note: The fl ashing tape may not fully cover the
framing members.
1F
1"
1/2"
1/2"
6"
1E
£
H. Attach the aluminum sill support or wood blocking to the
exterior of the box plate to support the edge of the door sill.
Place the sill support fl ush with the subfl oor.
1H
DOORS • ALL DOORS • ALL DOORS • ALL DOORS • ALL DOORS • ALL DOORS • ALL DOORS
GO TO STEP 2