PIT INSTALLATION NOTES
A recessed pit installation is possible when a low outside
threshold is required or desired. For pit installation, the
finished floor must be no more than 1/2" (1.3cm) below the
top of the outside threshold. For easiest wheelchair
entrance and exit, the finished floor should be flush with
the outside threshold of the module.
A typical tile installation will require a 3/4" (2cm) minimum
pit into the subfloor.
An alternative to a pit installation is to build a wheelchair
ramp above the subfloor up to the outside threshold of the
module.
Framing of a wood-framed sunken installation must be
similar to the framing used in stairwells.
The designer or architect should specify the quantity and
size of reinforcing joists and headers.
Size the joists, subflooring, underlayment, and floor
covering to make the finished floor flush with, or a
maximum of 1/2" (1.3cm) below the module threshold
height.
TOOLS REQUIRED
S
Conventional woodworking tools
S
Arc pliers or 14" pipe wrench
S
Rule
S
Level
S
Safety shoes
S
Safety glasses
S
Square
S
Screwdriver
S
Pliers
S
Utility knife
S
Two 7/16" wrenches
S
Putty knife
S
Clean work gloves
S
Damp, soft cloth
B
1011310-2-
2" (5cm)– 2-1/2" (6.4cm)
É É É É
Ç Ç Ç Ç Ç Ç Ç
Ç Ç Ç Ç Ç Ç Ç
Ramp
Tile or Floor
Covering
Tile or Floor
Covering
É É É
Concrete
A
Top View
Tile or Floor
Covering
Subflooring
Underlayment
MATERIALS REQUIRED
S
Wall coverings, as necessary
S
2x4's
S
2x2's
S
Drop cloth
S
Nails or screws
S
2" (5cm) wide masking tape
S
Clear silicone sealant
NOTE: Clear silicone sealant is a superior product and is
recommended to ensure against leaks. Use of acrylic or
other caulks is not recommended.
2
2-1/2" (6.4cm)
Subfloor
2" (5cm) – 2-1/2"
(6.4cm)
A
2" (5cm) – 2-1/2"
(6.4cm)
Fig. #1
Kohler Co.