(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 4 of 4

Thread: Drop in frame for whirlpool

  1. #1
    DIY Junior Member clapfc's Avatar
    Join Date
    Nov 2012
    Location
    albany ny
    Posts
    20

    Default Drop in frame for whirlpool

    OK, this is my first drop in frame.

    Water damaged sub-floor repaired, joists reinforced with blocking, even put sound proof insulation down.
    Now I have a question on the correct height for the drop-in tub.
    Here it goes.
    Height of the tub deck is 19", lip edge is 2" so the height from the floor to deck lip edge is 17". Now for the vertical frame calculation using 2x4s: Bottom plate 1 1/2, top plate 1 1/2, plywood 3/4, cement board 1/2, tile & mortar 1/2, vertical 2x4s at 12 1/4. This gives me a height of 17". Bottom of deck lip edge is 17" so I should be good, right? (1 1/2, 1 1/2, 3/4, 1/2, 1/2, 12 1/4, = 17) What I did not calculate is the mortar bed the whirlpool will sit in. Do I add another inch for the mortar bed? Meaning the height to the deck lower lip would be 18" and my frame needs to come up another inch? Or do I ignore the mortar bed with the idea that pushing down into the bed will displace enough mortar to make the bottom of the whirlpool practically sit on the sub-floor. The whirlpool is a jacuzzi primo if that matters. comments &/or suggestion appreciated.

    questions:
    1. Am I building to the correct height?
    2. Do I mortar & tile after setting the tub in mortar bed or before? (current plan is to set in mortar bed first & use 1" scrap wood to leave space for the cement board & tile & mortar.
    Last edited by clapfc; 12-03-2012 at 09:31 AM. Reason: sorry, this should be in tub forum
    CLAPFC

  2. #2

    Default

    Please refer back to the manufacturer's installation instructions and diagram, showing the various dimensions, you can't go wrong then.

  3. #3
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,632

    Default

    Tile first then set the tub ONTO the tile. IF you make the frame higher than "necessary", the mortar bed will fill the gap. For all practical purposes, the tub will be "hanging" on its rim so the mortar bed is only to stabilize the floor.
    Licensed residential and commercial plumber

  4. #4
    DIY Junior Member clapfc's Avatar
    Join Date
    Nov 2012
    Location
    albany ny
    Posts
    20

    Default

    hj, thank you for the response. The manufacturer's installation instructions and diagram did not discuss this issue which is why I came here. This helps. Trying to be exact here so the tub is supported by it own feet on the sub-floor, in the mortar bed, and not by the drop-in frame. I take it that if I am off a little bit the mortar bed will fill the gap so I should be ok. I would hate to tear it out and start all over again.
    CLAPFC

Similar Threads

  1. Drop In Whirlpool
    By dotwari in forum Shower & bathtub Forum & Blog
    Replies: 6
    Last Post: 05-15-2008, 08:38 PM
  2. Drop-in Whirlpool
    By Bob1234 in forum Shower & bathtub Forum & Blog
    Replies: 6
    Last Post: 04-16-2008, 06:13 PM
  3. drop in whirlpool
    By bigun471 in forum Shower & bathtub Forum & Blog
    Replies: 1
    Last Post: 08-14-2006, 08:21 PM
  4. Drop-in Whirlpool Tub install
    By rdtompki in forum Shower & bathtub Forum & Blog
    Replies: 3
    Last Post: 03-10-2006, 11:30 AM
  5. New drop in whirlpool CRACKING!!!!
    By Don in forum Shower & bathtub Forum & Blog
    Replies: 15
    Last Post: 04-11-2005, 07:51 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •