Shimming a tub
I gutted my bathroom and had plumbers install a new cast iron tub in an alcove. After they left, I noticed they'd levelled it by placing wooden shims under the skirt of the tub, not the feet.
This seems wrong to me on two levels. First, wood shims may crack/soften over time. Second, the ends of the shims protruding into the room will interfere with the flooring I'm going to put down. And anyway, the install instructions that came with the tub explicitly say to only use metal shims, and only under the feet.
(The front feet, i.e. the two nearest the drain, are actually right on the subfloor, but the back two are hovering about 3/8" off the subfloor. That's where I want to add metal shims.)
I could call the plumbers back but I'd rather just fix it myself rather than wait for them. But where do I get metal shims? Neither of the big home stores carries them, and even searching on line, all I find are washer-style shims (too small) and super-super-thin shim stock for industrial applications. The picture in the tub install guide shows what look like maybe 3"x5" rectangles.
So I guess I'm asking (a) Am I being too anal, and wooden shims under the feet would be fine, and (b) If I do need metal shims, where does one get them?
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