We have a TIK — & converted the tub space in 2003 to a full bath (30″ x 84″, that adjoins a bearing wall). The kitchen part is a U-shaped space surrounding the bath — which we want to renovate now. The entire kitchen (with bath) and bath walls sit on the same subfloor, and finished floor leval of kitchen & bath sit one inch above the rest of the ground floor. The kitchen part of the subfloor has considerable water damage on the far side by the sink & dishwater.

I want as part of a new reno to replace the kitchen floor & replace a portion of the kitchen subfloor as needed AND bring the kitchen floor level down to match the floor level of the ground floor (lower 1 in.) BUT leaving the newer tiled bath floor at its current level (1 in higher).

Question: Is this feasible: Since the bath interior partitions (and bath floor) sit on the same, continuous subfloor, can the the kitchen portion of the subfloor be cut out and replaced, leaving the bath walls and floor undisturbed? How much work is this? How expensive? Any tips for technique?


Comments

  1. I’m sure it can be done. I’m presuming the subfloor is nothing more than tongue and groove pine planks. Once they have had the strength of the surrounding interconnectedness removed, what will hold them together? I suppose the least expensive thing to do is to open up the ceiling below the tub enclosure and support the tub, walls and floor from there. Then the rest of the floor could be removed.

  2. Actually, I guess I didn’t describe this accurately, mod squad.

    Here’s another go:

    The whole kitchen is ~ 9′ wide x 14′ long, bearing (party) walls on both sides. The kitchen was redone in a deplorable reno in 1975, with (I’m guessing) a new subfloor laid on top of the original pine, and then linoleum or such over that.

    At the same time, 1975, the original “tub” space was converted into a 1/2 bath and partitions and new plumbing lines erected. The new bath was/is 3′ wide x 7′ long and sits along the east bearing wall, making the kitchen a U-shape. We updated the bath with finishes in 2003, subway tile and fit in a tiny shower to make a full bath.

    Now, we want to do the kitchen, but leave the bath as is. The entire kitchen floor (and little bath) sits 1 inch above the rest of the ground floor (dining and living). I really want the bring the kitchen floor level down to match the living and dining room, but leave the the bath alone. Thus, the bath floor would be 1-inch higher than the kitchen. (That doesn’t bother me). The problem is taking away the old layers of flooring from the U-shape kitchen (1. the 1975 subfloor, the 1975 linoleum, and a 1998 cheap depot wood composite on top). The 1975 floor underlays the entire room(s) and the bathroom walls, but the 1998 composite only butts up to & surrounds the little bath.

    My question: How to handle the joint where the 1998 oak butts the bathroom walls, and take away all the layers from the U-shape kitchen, leaving all the old layers in the bath and under the partitions? Can the old layers be surgically cut at the partition and a new subfloor installed?

    I’m asking these questions to be more knowledgeable about our bids. Yes, we most definitely having this done professionally. I’ve had one contractor say it would be outrageously expensive and impossible. Surely this has been done before, I hope!
    mb

  3. It is likely that the removal of the subfloor around the tub enclosure will weaken what’s left of the subfloor, if not an outright collapse ala Laurel and Hardy. Unless you’re lucky of course with a handful of joist hangers , some 2×6’s, if you worked quickly enough you could do it. This smells of DIY, something that has certainly got me into trouble over the years. That’s why nobody is weighing in with advice. I’ve dealt with forensic engineers, it’s not fun, interesting though.