Roughing-In
(cont.)
7727
36
″
(914 mm)
36-1/4
″
(921 mm)
18
″
(457 mm)
12
″
(305 mm)
24
″
(610 mm)
35-1/4
″
(895 mm)
34-1/4
″
(870 mm)
7728
42
″
(1067 mm)
42-1/4
″
(1073 mm)
21
″
(533 mm)
15
″
(381 mm)
27
″
(686 mm)
41-1/4
″
(1048 mm)
40-1/4
″
(1022 mm)
7730
36
″
(914 mm)
N/A
18
″
(457 mm)
12
″
(305 mm)
24
″
(610 mm)
35-1/4
″
(895 mm)
34-1/4
″
(870 mm)
7731
42
″
(1067 mm)
N/A
21
″
(533 mm)
15
″
(381 mm)
27
″
(686 mm)
41-1/4
″
(1048 mm)
40-1/4
″
(1022 mm)
1. Prepare the Site
NOTICE:
All dimensions shown in the
″
Roughing-In
″
section are nominal. The stud opening tolerance is
+1/8
″
(3 mm)/-0. Carefully measure your fixture before determining enclosure size. Some shimming
between the stud frame and the fixture may be required. If a firewall is required, rough-in dimensions will
have to increase according to the thickness of the firewall material. Stud opening dimensions must be
measured toward the exposed side of the wall material. Dimensions given in the rough-in information are
crucial for proper installation. Construct the framing and plumbing accurately.
Plumbing
Install the drain line according to the drain manufacturer’s instructions. Locate the drain line and
trap using the dimensions given in the
″
Roughing-In
″
section.
Subfloor Construction
NOTICE:
The bath must be level and resting on its feet. Therefore, constructing a subfloor that is level
and can support the load weight of the bath is crucial.
Floor support under bath
model:
7726
Must provide for a
minimum load of:
40 lbs/square foot (197 kg/square meter).
7727
40 lbs/square foot (193 kg/square meter).
7728
39 lbs/square foot (188 kg/square meter).
7730
41 lbs/square foot (200 kg/square meter).
7731
41 lbs/square foot (200 kg/square meter).
Construct a level subfloor made of plywood. If a material other than plywood is used, friction may
cause squeaking over time.
Verify the subfloor is level. If the subfloor is not level, install a mortar cement bed (recommended)
to level the subfloor. Refer to the
″
Install a Mortar Cement Bed (recommended)
″
section.
NOTE:
If the subfloor is not level and a mortar cement bed will not be installed, you will be instructed in
the
″
Prepare the Bath
″
section to place a felt pad on the subfloor and add shims underneath the bath to
achieve level.
Framing Considerations
Plan the location of the bath to allow clearance for (1) drainage through the floor joists or slab and
(2) convenient plumbing installation.
Provide access to all plumbing connections to simplify future maintenance. Include access at the
back of the plumbing wall whenever possible.
If a shower door will be installed, refer to the shower door manufacturer’s instructions for any
special framing considerations such as double studding at the front corners of the framing.
1139487-2-H
6
Sterling