Had To Remove Part Of My Subfloor, Now I Have NO Idea What To Do...please Help! - Carpentry - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Carpentry


Thread Tools Display Modes
Old 07-25-2014, 08:39 PM   #1
Join Date: Mar 2013
Posts: 155
Rewards Points: 191

Had to remove part of my subfloor, now I have NO idea what to do...please help!

Hey all...I am remodeling my shower and have run into a problem. The subfloor was rotted so I removed it and am adding a new subfloor. I bought the plywood, and planned to put a nailing edge on the left and right sides where the old plywood sticks out slightly to support the new plywood.

HOWEVER, I am worried about the left and right walls. Since I've cut the plywood, I am worried that they dont have enough support. Underneath them is just an empty space; the joists to the left and right side of the left and right walls, respectively, are a few inches away. How can I support the walls better? Here is an image of what I'm talking about (I know the idiots cut the joist to fit the drain; I plan on sistering it).

Thanks SO much!


amateurplumber is offline   Reply With Quote
Old 07-25-2014, 09:04 PM   #2
Join Date: Nov 2011
Location: Hartfield VA
Posts: 34,442
Rewards Points: 14,014

#1 Should have used a Tow Kick saw to cut out the subfloor.
That way you could have cut right along the bottom plates. Still could do it with a sawsall.
That piece of plywood sticking out is doing you 0 good.
The supports need to fastened to the bottom plate, not the thin plywood sticking out.
Couple of different ways to fix this.
The best way is to cut out the sheetrock in the room below and header off where you need the added support.
The second way is to add strips of 2 X 6's with construction adhesive and screws to act as a nailer.
The best way would be to predrill pilot holes in the boards and insert the screws, then use an Impact driver to drill the screws.
That way the board does not get push away as the screws go in and your not trying to hold the screws and the driver at the same time.
I'd never had used plywood to fix that floor, Advantech is stronger and far more moisture resistant.
I also would have cut that drain pipe and sistered another piece to the joist and also added another on to the back side where they chiseled out for the drain shoe.


When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
joecaption is offline   Reply With Quote
Old 07-25-2014, 09:15 PM   #3
Join Date: Mar 2013
Posts: 155
Rewards Points: 191

If you say so, I will remove the edges. I had no idea a tow kick saw even existed, that sounds great!

I would have used advantech, but i cant find it anywhere near me. Its all generic OSB. I'll do whatever you think is best...i have to remove the ceiling underneath it anyway since the shower was leaking onto it. If I can screw the 2x6s into the bottom plate, I would prefer to, though. Just as long as it gives me enough support. I had already planned to sister it.

Thanks for the advice!
amateurplumber is offline   Reply With Quote
Old 07-27-2014, 09:54 AM   #4
Join Date: Oct 2010
Posts: 2,479
Rewards Points: 802

Those walls are not bearing any weight, so you don't have to worry about supporting those walls. They are hanging from the top plate as well, and if you want to, you can add toe screws to the top plate and top plate to the ceiling joists, etc.

Shower floor has to be reinforced some other ways, so you can just screw a nailer in each bay (all around) to the strips of ply left over and drop in a filler. I would drop a second layer of 1/2 to 3/4 ply on top, glue and screw.

You can also add 2x3 or 2x4 nailers in each bay on edge. Pre drill the nailers and just screw to the joists. Angle screw driver really helps in tight spaces. I only have 3/8 chuck milwaukee angle screw driver, but it is one of really useful tools. Do not buy angle attachment. They don't last and tend to flop around.
carpdad is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
notched floor joists on I-beam, can I remove wall below? jsunsun Building & Construction 9 11-27-2013 09:15 PM
Remove part of conc basement wall stadry Concrete, Stone & Masonry 13 04-17-2013 04:25 AM
How to remove concrete under carport tbick Concrete, Stone & Masonry 3 04-11-2013 09:25 AM
How to remove the Tub/Shower Faucet Lever Handle? compiler Plumbing 4 03-29-2013 07:04 PM
Inducer Part Needed: Please Help! BDPNA HVAC 55 12-08-2010 08:48 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1