View Full Version : Tub drain over floor joist
crobin6415
Mar 10, 2008, 09:22 AM
I am installing a new tub and wall unit and the new tubs drain lines up right over a floor joist. The old tub drain fit right down the side of the joist. There is about a 1.5" difference between the two tub drains. Any way to get around this without moving a floor joist?
ballengerb1
Mar 10, 2008, 12:48 PM
If you can't move the tub from one side or the other then sister in two new joists, one on each dide of the old joist that you need to cut away. If this does not line up then sandwich the two joists together and put on one side, glue and screw them to the old joist.
razor96
Mar 10, 2008, 01:10 PM
you can also put two cross braces on either side of the drain and cut a 2" hole just above centre of the joist if you have 2x8 for joists.
massplumber2008
Mar 10, 2008, 01:48 PM
Hi Crobin... Just wanted you to know that they make an above the floor rough in TUB waste and overflow... Some sold in brass, some in plastic.. SEE PIC. #1
They also make a side outlet tub waste and overflow assembly... for just your situation... SEE PIC.#2 Should prevent you from cutting any joists.
Try Dearborn Brass (http://www.dearbornbrass.com) for more information on the side outlet drain (just click on bath drains at the site).
Any questions just let us know... Hope it helped... Mark
logicz
Mar 25, 2009, 07:39 PM
Hi Crobin...Just wanted you to know that they make an above the floor rough in TUB waste and overflow...Some sold in brass, some in plastic..SEE PIC. #1
They also make a side outlet tub waste and overflow assembly...for just your situation...SEE PIC.#2 Should prevent you from cutting any joists.
Try Dearborn Brass (http://www.dearbornbrass.com) for more information on the side outlet drain (just click on bath drains at the site).
Any questions just let us know...Hope it helped...Mark
Hello,
I have this same problem, and I was wondering if the side outlet waste overflow must be in brass, or if a plastic assembly is acceptable in this type of application as well?
Thanks,
massplumber2008
Mar 26, 2009, 03:54 AM
logicz...
If you can find one made in plastic...it should be fine! I think dearborn and gerber make these... check with a local PLUMBING SUPPLY STORE.
Good lcuk!
MARK
logicz
Mar 26, 2009, 08:27 AM
Thanks Mark!
Che
Milo Dolezal
Mar 26, 2009, 08:34 AM
You can actually notch the joist a bit. Do not chop it up too much - just what you need. Yes, you can use plastic drain (ABS or PVC ). If on the second floor - then glue all joints together.
massplumber2008
Mar 26, 2009, 11:26 AM
Milo...
Have you seen a side or rear-outlet tub waste and overflow assembly in plastic? Let me know.
Thanks...
MARK
Enzeder
May 14, 2011, 10:54 AM
Milo...
Have you seen a side or rear-outlet tub waste and overflow assembly in plastic? Let me know.
Thanks...
MARK
I was thinking of PVC (about halfway down is a 1½" 3-way that's NSF rated):
Product Listing PVC-3-ways-side-outlet-90 (http://flexpvc.com/cart/agora.cgi?product=PVC-3-ways-side-outlet-90)
And pairing it with something like this:
KOHLER: K-7214: Clearflo cable bath drain, less PVC tubing: Accessories: Bathroom (http://www.us.kohler.com/onlinecatalog/detail.jsp?item=10998102)
massplumber2008
May 15, 2011, 02:48 PM
Looks like that would work just fine here Enzeder... :)
Thanks for posting it all...
Mark