Basement Shower Plumbing

Old 03-12-01, 07:43 AM
abNORMal's Avatar
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Join Date: Nov 2000
Location: New Jersey USA
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I am installing a basement bath and had the roughs done when the house was built (last year). The rough for the shower enters the main drain below the concrete floor and is 2 1/2" PVC. I seem to remember that a "standard" shower drain is 3". Should I change this to 3" so I won't have any trouble finding standard drain fittings?

Also, I plan to use an acrylic stall. Do they require a mud bed for floor support or do they come with enough support?
Old 03-12-01, 07:37 PM
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Shower drains are standard 2" ID (inside diameter), now the shower grate my be 3", I have never seen a 2 1/2" drain line applied in residential plumbing, maybe in commercial, measure the inside of the pipe.

For support, do a test set and see if it rocks or moves, if it does then use some mortor on the bottom of it to level it out.

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