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Framing Shower Walls for a Custom Shower Pan


Tips for Framing Shower Walls for a Ceramic Tile Shower and Shower Pan


By Mark J. Donovan


Framing shower walls properly is the first step to building a quality custom ceramic tile shower with a mortar shower base.  To frame shower walls all you need is a hammer, 16 penny nails or 3 inch screws, skill saw, framing square, a 4 foot level and some 2x4s and 2x6s.


Framing shower walls is really no different than framing any other wall, with a couple of exceptions.


Whether you plan to stick build the shower walls in place or pre-frame the shower walls on the floor first, it is extremely important to make sure the framed shower walls are straight and plumb.


Use a framing square to mark the location for the shower walls on both the floor and the ceiling, and use a 4 foot level to ensure they are plumb.


To frame a shower wall into an existing finished bathroom, it is probably best to stick build the walls in place. To do this, first install the 2x4 foot plate and a 2x4 top plate.


Fasten the foot plate and top plate to the floor and ceiling respectively using either screws or nails.

  Framing shower walls and shower pan area

Photo by Mark Donovan


When fastening the top plate to the ceiling, make sure you fasten it into ceiling joists and not just the drywall.  Depending upon the orientation of the framed shower walls, you may need to include additional blocking in between the ceiling rafters.


Framing Shower Walls


After installing the top and bottom plates, next measure the distance between the two plates for determining the wall stud height.


Next, using a framing square mark the locations of the 2x4 wall studs along the top and bottom plates. The wall studs should be located 16 on center from each other. Note, however, that you may need to adjust the location of the wall studs if they may impede into the area where the mixing valve and plumbing pipes are expected to go.


Shower Pan Membrane Liner Installation Ebook

Immediately Downloadable

Once you have marked the locations for the framed shower wall studs, cut the necessary number of 2x4s and install them one at a time in-between the top and bottom plates. Use either nails or screws to toe nail them into the plates.


Note that if you are framing shower walls into an already completed bathroom use screws to prevent nail pops in the existing drywall walls.


Repeat this process for all of the remaining shower walls.


If you are framing shower walls on a new home construction project, you can alternatively build the walls on the floor and then lift them into place. 


Framing in additional lengths of 2x4 for Shower Stall Doors


After framing in the main structural shower wall studs, it is important to install additional wall studs where shower doors are expected to be attached to the shower walls.


In addition, make sure that where one framed shower wall meets another that there is a wall stud on the adjacent shower wall such that the two wall studs form a framed corner. This is necessary for having sufficient wall framing surface for attaching backer board.  


Framing Shower Walls 2x6 Blocking


Once you have framed in the shower wall studs, it is now time to add 2x6 blocking in between the 2x4s, along the base of the shower stall. The blocking is necessary for building the ceramic tile shower pan. The shower pan membrane liner attaches to the upper edges of the 2x6 blocking. In addition, the 2x6 blocking also helps to hold the mortar in place as it cures.

  Framing Shower Walls for Custom Ceramic Tile Shower

Photo by Mark Donovan


Framing the Shower Pan Curb


Finally, frame in a shower pan curb using 2 or 3 laminated 2x4s. To do this, again nail or screw a bottom plate along the shower curb area, and then mount either one or two additional 2x4 plates on top of it, depending upon how high of a shower curb you desire. Alternatively you can use a 4x4 to frame in the shower pan curb.

With the shower curb installed your framed shower walls are ready for the next step, installing the rough plumbing; including the mixing valve, hot and cold supply lines, drain lines, and an adjustable shower pan drain assembly.



See My Shower Pan Ebook for More Details on how to Install a Mortar Shower Pan:  For a more detailed set of instructions on building a shower pan, including pictures and a detailed cross-sectional view of the make-up of a shower pan, see my Shower Pan Membrane Liner Ebook.



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