Drain for curbless shower

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Queeni1951

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Floor joists 2” below tonallow for curbless shower
What kind of drain can be installed? Would like linear but plumber says not enough depth of subfloor and keep it curbless.
Help!
 

jadnashua

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What's underneath? If there's no room beneath for a linear drain, there probably isn't enough for a conventional one, either. The issue may be the depth of the trap and where it starts. The conventional clamping drain is similar to a linear drain in total depth. If it is the total depth beneath the floor for the trap and vent arm, is there any possibility to put in a soffit or something similar below to give you that required depth?
 

Queeni1951

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What's underneath? If there's no room beneath for a linear drain, there probably isn't enough for a conventional one, either. The issue may be the depth of the trap and where it starts. The conventional clamping drain is similar to a linear drain in total depth. If it is the total depth beneath the floor for the trap and vent arm, is there any possibility to put in a soffit or something similar below to give you that required depth?
ItWe
new construction
Floor joists 2” below tonallow for curbless shower
What kind of drain can be installed? Would like linear but plumber says not enough depth of subfloor and keep it curbless.
Help!
It is a one story so shower is on main floor but in an area of the house that juts out. Full empty basement below but not underneath the jut out.
 

jadnashua

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If it's a crawl space, there should be no issue with depth. The plumber may not want to actually crawl under there to do the work, though!
 

jadnashua

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I don't see a problem doing any kind of a drain, but I'm not there to see what the plumber may be seeing. To plumb it up, you'd either have to get underneath, or tear the subflooring off unless the distance is short enough to reach.

One complication may be which way the joists run and where you want to put the drain. If the linear drain would cross over multiple joists rather than sit between them, if you try to recess it into the floor rather than having your mudbed thick enough to keep the body above, that could be a major problem.

Maybe a sketch of the area showing where the shower is supposed to be and the joist layout may make it clearer. You can attach a file when posting...use the 'Upload a File' option and upload it from your computer.

A linear drain is often installed at the back of the shower along one wall. But, it can also be installed in the middle of the shower with two sloped sections, rather than one, which gives a bit more flexibility.
 

Queeni1951

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I don't see a problem doing any kind of a drain, but I'm not there to see what the plumber may be seeing. To plumb it up, you'd either have to get underneath, or tear the subflooring off unless the distance is short enough to reach.

One complication may be which way the joists run and where you want to put the drain. If the linear drain would cross over multiple joists rather than sit between them, if you try to recess it into the floor rather than having your mudbed thick enough to keep the body above, that could be a major problem.

Maybe a sketch of the area showing where the shower is supposed to be and the joist layout may make it clearer. You can attach a file when posting...use the 'Upload a File' option and upload it from your computer.

A linear drain is often installed at the back of the shower along one wall. But, it can also be installed in the middle of the shower with two sloped sections, rather than one, which gives a bit more flexibility.
 

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Queeni1951

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Image above:
Installing showerhead on left wall as you look at pic.
Controls to turn on and off shower on wall to the left of door opening as you look at pic.
May not use door; may use a door. Will try it out first without a door.
Hand held shower on a sliding bar will either be installed beside showerhead or where controls are.
 
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