How thick is the typical interior wall

The friendliest place on the web for anyone with an RV or an interest in RVing!
If you have answers, please help by responding to the unanswered posts.

Larry Brew

New member
Joined
Mar 3, 2019
Posts
1
I want to install some additional towel bars and want to make sure my screws are short enough.
 

Gary RV_Wizard

Site Team
Joined
Feb 2, 2005
Posts
76,153
Location
West Palm Beach, FL
1.25-1.5 inches total is typical, so short screws. The higher end models may be 2" or a bit more. So called stick & tin construction is often different than laminated fiberglass.


Find an outlet or switch in an outside wall and open it up to see.
 

SLOweather

Well-known member
Joined
Dec 2, 2018
Posts
340
In our Sunstar, some partitions are 1/8" plywood sandwiching nominal 1x (really 3/4") lumber, so the wall itself is only 1" thick. Plus, screws don't hold well in the 1/8 ply. A molly or other expansion anchor helps.
 

Prior member

Well-known member
Joined
Jan 20, 2015
Posts
1,232
I just measured mine on my Forest River Wildwood trailer
The wood paneling on each side is 1/8" thick and the inner space between the paneling is 1-1/2" for a total
of 1-3/4 "

A suggestion which I did on my last trailer which worked great.
I made backing plates for towel racks, a toilet paper holder and a few other items using half inch oak and then routing the edges, staining it and finishing it with polyurathane.
In each one I used two brass screws with sharp points and just long enough to penetrate the exterior paneling. Then I coated the backs with glue and putting pressure on the screw driver screwed them in place, (the screws just act as clamps). The next day, I would screw my item to the backing plate. In eight years with the trailer we never had one come loose and had quite a few comments on how attractive they were

Jack L
 

djw2112

Well-known member
Joined
Dec 30, 2018
Posts
1,014
Location
East Texas
Just FYI, when installing new outlets (if you need to) interior or exterior, be sure to use a shallow box which you can get at lowes, they are blue in color and there are two types. One with a nail bracket and one without. 
 

Prior member

Well-known member
Joined
Jan 20, 2015
Posts
1,232
djw2112 said:
Just FYI, when installing new outlets (if you need to) interior or exterior, be sure to use a shallow box which you can get at lowes, they are blue in color and there are two types. One with a nail bracket and one without.

Or you can do even better getting a "old work shallow box" with the side entry compartment which gives you 17 cu inches of space.(twice the space of a regular shallow box yet the wall cut out is the same size as a regular box)
It has the wings that attach to the back of the paneling.
I just finished using six of them in our year old trailer

Jack L
 
Top Bottom