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-   -   Installing a 30" bathroom cabinet on a sloping floor (http://www.diychatroom.com/f80/installing-30-bathroom-cabinet-sloping-floor-120679/)

ken24 10-20-2011 11:38 AM

Installing a 30" bathroom cabinet on a sloping floor
 
I have a 30" wide bathroom vanity cabinet w/toe kick which is to receive a granite top that will need to be installed soon. However, in that 30" from the left side of the cab to the right there is a drop of 3/8" due to sloping floor.

Subfloor is 3/4 ply and vinyl floor is planned with 3/8" ply as underlayment.

Cabinet is located between tub and toilet and I'm guessing that I should install Cabinet first and have underlayment installed at the time vinyl installer shows-up.

Because of the 3/8" drop to the right and size of the underlayment, it doesn't look like I will lose much in toe kick height.

Any suggestions on how to install cab given the slope to the right?

Thanks, Ken

Ron6519 10-20-2011 05:21 PM

The cabinet would go on the finished floor.
You will shim the cabinet to a level position.
You'll add a small molding to the base to hide the shims. The size of the molding will be determined after the cabinet is set and the gap measured. You'll pick the smallest molding that hides the gap.

ken24 10-20-2011 08:13 PM

Ron,

I assume I will need to shim on the right side of the cab. where it's low; But will I need to shim on the front on the cab base since there will be a gap there too?

Also, how do I secure the shim to keep it from breaking free?

Are you talking about the traditional wood and plastic shims purchased at the lumber dealer? or using plywood as a shim?

Thanks, Ken

Ron6519 10-20-2011 08:30 PM

Quote:

Originally Posted by ken24 (Post 753103)
Ron,

I assume I will need to shim on the right side of the cab. where it's low; But will I need to shim on the front on the cab base since there will be a gap there too?

Also, how do I secure the shim to keep it from breaking free?

Are you talking about the traditional wood and plastic shims purchased at the lumber dealer? or using plywood as a shim?

Thanks, Ken

The new composite shims work well in a wet area.
You shim where ever it's needed to level the cabinet.
With the cabinet screwed to the wall, the shims in place and the molding installed, you really don't need to secure the shims.

ken24 10-20-2011 09:46 PM

Ron,

I'm finishing-up a total bathroom renovation now and I still will have painter, granite guy, finish electrical and plumbing and shower glass guy to come in and I would like to install the vinyl when they are gone so it doesn't get damaged.

Is Setting the cabinet on top of the underlayment very common?

I spoke to a local contractor today, and he told me that if I install the cabinet over the 3/8 vinyl underlayment, that it will be difficult to remove the old underlayment in the future when another vinyl covering is needed.

Instead, he told me that he sets the cab on the subfloor and installs the underlayment around the cab at the time the vinyl is layed. He says that way when it is time to re-vinyl again, a new underlayment can be replaced if desired/needed.

What do you think?

Thanks,

oh'mike 10-21-2011 06:41 AM

You could install the cabinet first if you wish---You will need to trim in the bottom of the cabinet if you do install the cabinet before the underlayment--

This is a debate that happens all the time---I like the cabinet on top of the flooring---but in this bath perhaps your idea is the best.----Mike----

I'm curious----why wasn't the floor framing corrected? Seems like that should have been addressed on the second day of work on this job.

Ron6519 10-21-2011 06:47 AM

Quote:

Originally Posted by ken24 (Post 753185)
Ron,

I'm finishing-up a total bathroom renovation now and I still will have painter, granite guy, finish electrical and plumbing and shower glass guy to come in and I would like to install the vinyl when they are gone so it doesn't get damaged.

Is Setting the cabinet on top of the underlayment very common?

I spoke to a local contractor today, and he told me that if I install the cabinet over the 3/8 vinyl underlayment, that it will be difficult to remove the old underlayment in the future when another vinyl covering is needed.

Instead, he told me that he sets the cab on the subfloor and installs the underlayment around the cab at the time the vinyl is layed. He says that way when it is time to re-vinyl again, a new underlayment can be replaced if desired/needed.

What do you think?

Thanks,

I think the contractor is an idiot.
You place the cabinet:
After the room is painted
After the finished floor is down.
If your putting down a new floor, you just remove the cabinet. It's a 15 minute process to take it out.
If you do it before the vinyl is down, water will get into that area and damage the floor.
It's a stupid idea to put the cabinet in prior to the finished floor.

ken24 10-21-2011 03:15 PM

Thanks Mike for your opinions,

The bathroom had a lot of water damage from shower in the corner that required replacing several joists. The bathroom is located between the kitchen and a small bedroom. The kitchen is the same width as the bathroom, 8' wide. I noticed that the kitchen and the bedroom also has the same slope of 1" in 8' so it appears the problem has been there a long time; Damage to the subfloor extended into the bedroom about a foot or so;

I did ask a general contractor how to correct the slope issue at that time and he told me it would be difficult to correct and recommend that I live with it as I had done before.

All the 1x8 subfloor boards in the bathroom and small part of bedroom were replaced with 3/4 ply at the suggestion of my carpenter.

I should have called-in a good General contractor to correct to joist problem but I didn't have the sense to at that time. Next remodel is my Kitchen; perhaps I can correct them at that time.

ken24 10-21-2011 03:42 PM

Ron, Thanks for your strong views on the subject,

What you say about setting the cab before the finished floor makes good sense.

Does this sound like the right order of work?

1. Finish coat of paint
2. Finish electrical
3. Finish plumbing
4. Shower glass enclosure for neo-angle shower
5. Install 3/8 ply underlayment
6. Install vinyl
7. Install cabinet
8. Install granite top & splash to cab

Any corrections to this order would be appreciated, Thanks

ken24 10-21-2011 03:48 PM

accidentally sent same reply twice.

Ron6519 10-21-2011 04:00 PM

Quote:

Originally Posted by ken24 (Post 753663)
Ron, Thanks for your strong views on the subject,

What you say about setting the cab before the finished floor makes good sense.

Does this sound like the right order of work?

1. Finish coat of paint
2. Finish electrical
2. Finish plumbing
4. Shower glass enclosure for neo-angle shower
5 Install 3/8 ply underlayment
6. Install vinyl
7. Install cabinet
8. Install granite top & splash to cab

Any corrections to this order would be appreciated, Thanks

1 The underlayment
2 electrical
3 vinyl
4. floor molding
5 paint
6 glass
7 cabinet
8 granite top
9 finish plumbing

ken24 10-21-2011 06:05 PM

Thanks Ron,

When does the toilet go in? After the finish coat of paint?

Do you install the toilet flange over the vinyl,underlayment, or subfloor?

Ron6519 10-21-2011 06:35 PM

Quote:

Originally Posted by ken24 (Post 753745)
Thanks Ron,

When does the toilet go in? After the finish coat of paint?

Do you install the toilet flange over the vinyl,underlayment, or subfloor?

Toilet flange sits on the finished floor.
The toilet installation is part of finished plumbing.
You mentioned a contractor, any reason this guy doesn't know the sequence?

ken24 10-24-2011 02:37 PM

Ron,

At the time of the rough-in, I had a plumber do copper re-pipe and new abs venting under house. At that time he installed metal toilet flange to subfloor; After talking to another plumbing contractor, he said that this metal flange was cheap and would rust-out and recommended that I replace it with a black abs toilet flange. I had metal flange removed and after vinyl is installed, abs flange will be installed on top of finished floor.

Thanks for the good info.


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