# Miter Angle - Brain is Stuck

• posted on June 26, 2005, 3:10 pm

My brain is failing me. I am putting down baseboards in a room with an oblique inside angle - I measure it at 136 degrees. What miter angle do I cut for the miter? 68 degrees?
Also, is it preferable to cope odd angles as well as 90 angles?
Below is what the inside angle looks like.
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• posted on June 26, 2005, 3:42 pm

Yes 68 degrees. And I believe the angle you are describing is better defined as obtuse.

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• posted on June 26, 2005, 4:51 pm

Yes, sorry for being obtuse. Does this mean I need a jig for my miter saw?

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• posted on June 26, 2005, 5:54 pm

That or put a square piece of plywood on the miter saw bed and set your piece on the saw at a 90 degree angle to normal and squared up against the square piece of plywood and cut at 22 degrees IIRC.

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• posted on June 26, 2005, 5:31 pm

in general any miter angle will be half the angle of the "corner" you're installing to.
i don't really see any major additional issues on miter vs. coping for obtuse angles vs. a right angle. Coping for an obtuse angle will require you back cut the joint like you do for crown moulding. Also the greater than angle I think the less the effectiveness of the cope since you won't be digging into the butted joint as much as you would with a right angle.
Think I'd miter them and call it good.
ml

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• posted on June 26, 2005, 5:42 pm
On Sun, 26 Jun 2005 11:10:11 -0400, "Buck Turgidson"

If you are reading your angle finder correctly then you are right and half of your angle or 68 degrees would be the cut for each piece. Just a note, some angle finders have only one scale and this requires you to subtract the reading from 180 degrees which would in fact give you a 44 degree angle. In this case, half the measurement would be 22 degrees which seems to match your fine ASCII art<g> a little closer.
BTW, I only cope my 90 degree inside corners.
Mike O.

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• posted on June 26, 2005, 8:08 pm

I am embarrassed that something so basic is confusing me. I assumed it was 136 because another 44 degress would make it 180, or a straight line. But the shallower cuts visually make more sense.

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• posted on June 27, 2005, 2:07 am
Here is a software program that will help you with all kinds of molding excel file attach
M`&T`80!R`'D`20!N`&8`;P!R`&T`80!T`&D`;P!N```````````````X``(! M________________```````````````````````````````````````````` /````\$P`````0```````` ` end