Jillmc, thank you for making your post. I am getting fabric together to make my first Log Cabin quilt ( a scrappy )and couldn't decide which width to make my strips. Since I hoping to make a king size, I think it's going to be the 2 1/2 strips.

Thank you for all of your input. I will switch gears and cut strips at 1 1/2".....Betty, good luck with your king sized project! ;)

One thing to keep in mind about large log cabins -- there are a lot of seams and seam allowances, so these are HEAVY quilts -- something to keep in mind when making your decisions about how you will quilt them. The largest quilt I have ever FMQ on my domestic machine was a king size log cabin, made with 1 1/2 strips. I still love that quilt, but it was a monster to quilt, and with experience, I would probably have chosen a less demanding quilting pattern than the spiraling paisley that I did.

I would do what patchsamkim suggested. I have done just a few and I prefer using 2" strip that give a 1.5" finished. It is not difficult to draft out a log cabin block and you can see what your block will look like without the color.
GOOD LUCK !! Photo to follow when you top is done !!

Thank you for asking as a log cabin is on my bucket list and this is also something I've wondered!

I agree with Manicquilter2. I prefer 2 inch strips.

I will be making a log cabin quilt for DH out of flannel. What would be a good strip width for it?

I think the width of the blocks should be proportional to the block. That is if your making an 18" block, your stripes can be wider than if you were making a 6" block. But ultimately, it's your decision on the look you like.

Check out Quilters Cache. They list patterns for blocks in several finished sizes and the patterns are free.

That is a good idea. Thanks for the tip.