Nominal vs actual to produce 1 1/4" thickness


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Old 03-08-24, 05:04 PM
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Nominal vs actual to produce 1 1/4" thickness

I'm trying to build out a wall surface 1 1/4" to match preexisting drywall. Is there any combination of actual lumber thickness, that will produce the 1 1/4" or will I have to creatively shim, combining materials?
 
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Old 03-08-24, 05:40 PM
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3/4" + 1/2"

Any 1" dimensional lumber will be 3/4". The 1/2" will be a little trickier, but the big box places carry some 1/2" lumber in red oak and poplar in short sections. You might also be able to combine flat trim molding lumber to get to 1 1/4".
 
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Old 03-08-24, 05:56 PM
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I'm looking for actual size. I realize that a nominally sized 1 x 3 (actual 3/4" x 2 1/2") is part of the equation, but what dimensional lumber is sized _ x 3 to produce an actual 1/2" x 2 1/2"?

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Last edited by bobioni57; 03-08-24 at 06:00 PM. Reason: Clarity
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Old 03-08-24, 06:33 PM
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This is why table saws were invented. You would either rip stock 1 1/4" wide from 2x4s or you could use 2 layers of 5/8" ply, ripped 1 1/2" wide to go on top of your studs.
 
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Old 03-09-24, 05:03 AM
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Could also resaw a 2x4 down to 1 1/4" from the 1 1/2" or even surface plane same, but those are much more involved and depend on your tool inventory. Sleeper's got the best plan.
 
 

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