Rev: 03.19.21 Page 7 CCD-0004319
Fig. 5
1" x 3"(25.4mm
x 76.2mm) Tube
1"x3"
(25.4mm x
76.2mm) Tube
Header Extends 2' (61cm) Beyond
Upright (Typical Both Sides)
Tube can be
removed if
necessary
Support 1" x 1" (25.4mm x 25.4mm) Tube
1" x 3" (25.4mm
x 76.2mm)
Tube (See Wall
Chart)
36" (91.4cm)
Fifth Wheel Lippert In-Wall
The room opening in (Fig. 5) will be the same except for using 1" x 5" .070" (25.4mm x 127mm 1.78mm)
aluminum for the header and 1" x 3" .070" for the vertical uprights. Header should extend 2' (61cm) beyond the
room opening. Vertical uprights should be stuffed with wood (Fig. 5). If the vertical uprights are at least .125"
thick, the uprights do not need to be stuffed with wood. If uprights are not stuffed and wall thickness is below
.125", interior clamps need to be added to the system. Upright wall thickness below .055" is not acceptable.
Supports on The Top of The Slide Room on The Main Frame Only
Supports need to be at least .040" (1mm) aluminum and 1" x 1" (25.4mm x 25.4mm) aluminum tube and
should extend from the header up into a cross tube. If the room size in the slide wall is less than 4' (121.9cm)
in width, no vertical supports are needed above the header. Any room that is more than 4’ (121.9cm) and
up to under 8’ (243.8cm) needs to have one support centered on the room. Every room that is over 8’
(243.8cm) up to 12’ (365.8cm) needs to have two vertical supports evenly spaced over the top of the room.
For example, a 9’ opening would have a vertical support 3’ (91.4cm) in from each upright (See Fig. 5 for
reference). So for every 4’ (121.9cm) in room width, one additional vertical support will be needed.
NOTE: These instructions are based on a 1" (25.4mm) sidewall thickness. For example, a 1.5" x 3" (38.1mm x
76.2mm) tube may be used if walls are 1.5" (38.1mm) thick.
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