I wished you lived in the DFW area...My current tub was marbled in with no access to the faucet pipes.. super fun when you need to replace a 30 year old faucet. So to find a person like you to replace my tub, where do I start looking? The GC I have spoken with all want to completely redo the bathroom and the tub job is too small. Any advice. Your work looks awesome. Lucky lady.

thanks Mongo - this is great! i love the teak

a couple questions...

1. my acrylic tub has a board attached to the bottom of it, which has the electrical stuff & some air tubes attached to it. then under that are 4 wooden legs. the mfr says you can do a mortar bed or shim the legs. initially i was going to do a mortar bed, but after looking at everything, the mortar won't touch the tub at all - it would only touch the wooden legs & the wood platform the tub is sitting on. would that really add anything that correct shimming wouldn't add?

2. what are those mesh panels made out of on the sides of the apron?

thanks,
lisa

Mongo...

Above you stated that you temporarily put the deck frame in place so that you could play with the height until the owner was satisfied..however, the owner could only have the deck as low as the tub was deep, correct? So was the owner wanting (or debating)just going higher? If she went higher than the depth of the tub, would you first have to build a support to raise the floor for the tub to rest on or would the tub solely rest on the decking?

Also, how much support is needed under a tub? We're going to be remodling a 1950's bathroom and expanding into an adjacent bedroom...We'll be ripping up the floor and will be putting in a jetted tub of some sort and a walk in shower and are wondering if we'll need additional support.

Also, you say you allow of 1 inch thickness of mortar but then say you push the tub down into the mortar until the feet rest on the subfloor...if so then how is the mortar raising the tub by 1 " if the tubs feet rest on the subfloor?

TIA!

needsleepmommy-- What you might do is go into John Bridge's forum, and look for a guy that goes by the name of "Davey" (Davey Stevens). He's a custom tile contractor in your area. He, his brother, and his father do nothing but high end construction, and I'm sure he could give you a name.

Thanks Bill..where do I find John forum? Also does high end construction mean they only do big jobs? I have trouble when I say I only want the bathtub replaced. I am not very savvy at this...many thanks again

Post in the Pros Hangout:

http://johnbridge.com/vbulletin/forumdisplay.php?f=4

Or you could just go directly to his website and email him from there:

Here is a link that might be useful: Davy Stevens website

Just emailed him...thanks a bunch...I feel like I am closer to getting my bathroom done....yeah!!

Sorry for the late replies, I went to FL for a couple of days.

needsleepmommy, looks like Bill came to your rescue.

Lisa,

1) If the only contact your wood platform has with the tub is through the legs, then it doesn't sound like a full support mortar bed under that wood platform would provide much benefit. Shims and PL construction adhesive (or whatever the manufacturer recommends) to keep things from moving should do you fine.

2) The grate is a diamond-grid patterned piece of sheet metal, I think it might actually have been purchased at home depot. The original sheets were large, maybe 3' square or so? I use them whenever I need an open ventilation grate of some sort, and where the look will suffice.

I cut the metal down to size, sanded it with a random orbita sander to get down to bare metal, then sprayed it with black paint. Let the paint dry, then sanded by hand in one direction with sandpaper to take away some of the paint and lighten the color. It has a "brushed metal" look due to the sanding.

That grate, as well as the toe kick under the closet to the right of the tub, allow free air to get under the tub. A bit of ventilation.

slc2053,

The original height of the tub was indeed specified, and I set it at that height. That's the height of the original platform (6-1/4" high) that you can see in the first photo. I always felt that it was a couple of inches too low, we went back and forth over it.

So I set the tub and had her climb in. She agreed it was indeed too low and that we should raise it a few inches. So I ripped the tub out, that's why I have the picture of the mortar bed in picture #2.

To raise the tub I then built a mini-platform on top of the first platform. You can get a glimpse of the mini-platform in the second-to-last photo, the one that shows the entire face frame removed.

Drop-in tubs should not be supported by the rim. The weight needs to be supported by the base of the tub, with the rim just touching the deck.

Your tub will have a specified operating volume, most are around 80 gallons. Water weighs a little over 8 lb/gallon, so you're looking at 640lbs for the water. Using my tub above, the water weight is transfered to the footprint of the platform which is 8' long by 4-plus feet wide. 32 sqft. That's a live load of only 20 pounds per sqft on the bathroom floor. Even add two bathers and you're up to 30 lb/sqft. Common code today is to build for a minimum 40 lb live load.

Most bathrooms, even vintage 50's construction, have floor spans that can handle a modern tub. But you can have your joist span, joist spacing, and joist sizing checked to confirm that just in case. the platform not only raises the tub, but it spreads the tubs load over a wider area.

Don't forget that the load is a live load, it's temporary, it's only there while the tub is full of water.

Best to all,
Mongo

Mongo,

Re: tub deck..you secure the surround to the wall studs as well as to the platform? Any photos instructions on building the platform and the support decking? I see your platform, but it is covered by the plywood.

Also, on a side note..any instructions installing a kerdi shower but with a preformed shower pan? I did download the Kerdi book and just started to go through it. But I really don't want a tiled floor, but do want a waterproof shower...so if we go with a preformed pan of some sort (would have to be custom as our size/shape isn't "standard") can we still integrate kerdi system?

Also, I read on another post someone got a tub, but doesn't have a big enough water heater to fill it...does that happen often? I never even considered that possibility?

Thanks.

"Re: tub deck..you secure the surround to the wall studs as well as to the platform? Yes.

Any photos instructions on building the platform and the support decking? I see your platform, but it is covered by the plywood. No pictures of that. Frame it like a mini-floor. 2-by framing members spaced 16" on center. I usually run the platform "joists" perpendicular to the direction that the floor joists are running. Do mark out a the area where your tub's drain and trap will run, box that out accordingly so the platforms' joists don't interfere with the plumbing. Then cover the platform with 3/4" CDX plywood.

Also, on a side note..any instructions installing a kerdi shower but with a preformed shower pan? That might have been discussed in the "Kerdi Shower" thread. If it wasn't covered specifically, the detail for joining the wall Kerdi to the preformed shower pan flange is essentially the same as joining the Kerdi to a tub flange.

I drew a couple of sketches regarding that detail in the KS thread. Should be towards the end. There should be one drawing showing the cement board being held above the flange and the tile hanging over to cover the flange. There should be a second drawing showing furring strips added to the faces of the wall stud, with the cement board then hanging down past the tub flange and the tile no the cement board. The latter would be a better when using small mosaic tiles.

Also, I read on another post someone got a tub, but doesn't have a big enough water heater to fill it...does that happen often? That could happen. There is usually a minimum quantity of water that needs to be in a tub for a jetted tub to operate. That volume will put the water level above the jets, preventing the pump from cavitating. Some folks on the forum with smallish water heaters have mentioned that they fill the tub as much as they can, climb in and soak while the water heater is recharging, then fill it more while bathing. Remember, your body will displace water as well, raising the water level. So the answer? Yes, it could be a factor. How much of a factor depends on your water heater's volume and recycle time. That's not a question I'd be able to answer.

Mongo

There was a thread a couple months back asking about DIY tub framing. Link below.

Our tub came attached to 2x4s. We just shimmed them level and screwed the 2x4s into the subfloor so the tub wont move.

Hi Mango,

Your post is really really helpful!!

We are planning to add new bathroom to our sun lite basement, and would like to ask your advice on tub framing/installation...

We would like to install our tub raised up about 1 foot from the floor, so we can look out from the window easily and enjoy the japanese garden just outside of the window.

What would be the best way to build the solid base for the raised tub?

Our bathroom is located in unfinished basement (= floor is concrete). The tub height is 20'', so the finished raised tub height will be 30'' - 32''. It has factory-installed alcove tile flange, so we won't need to build a tub deck I believe (just attach 2x4 along the wall studs to hold the edge of tub).

Hope I explain my questions w/enough information.

Thanks!
-b

needsleepmommy...I live in Fort Worth & would love to piggy back on your discovery. I need to build a shower.
Thanks so much

Where did you get the piece of teak wood? Was it more a veneer?

tub

I want to build a platform for a 66x32" tub, but my bathroom is small and I don't have any room for a platform that is any larger than the tub's dimensions. Since the tub's weight is resting on the floor and the tub lip just rests on the top of the platform, can't I make the platform the same size or AT MOST 1" wider than the lip of the tub?

"Tub install"

And?????