Block help please

This should help you out:

Corner Triangles

We'll cut two corner triangles by slicing a square once from corner to corner. (You want the bias on the LONG side of the triangle -- the straight of grain for the corners of your quilt.)

Start by calculating the finished length of a block's diagonal.

Finished block size x 1.41 = finished diagonal

Divide the answer, the finished diagonal, by 2. Add 0.875" and round up to the nearest 1/8" to find your parent block size.

Cut two parent blocks that size and divide each in half once diagonally to make a total of four corner squares.

So with a 12" finished block... you multiply 12 X 1.41 which gives you

16.92.

Divide that (I'd round up to 17) by 2 which gives you 8 1/2". Then add .875 (I usually add 1") to find the parent block -- which in this case would be 9 1/2" Cut that in half diagonally for your CORNER blocks

************************************************************************** Setting Triangles (they go on the side -- and the long side of the triangle is the straight of grain.

We'll cut a square twice diagonally to produce four setting triangles with the straight grain on their long edges.

1. Finished block size x 1.41 = finished length required on the triangle's longest edge. Round up to nearest 1/8". For your 12" finished block -- you get the same 16.92.

1. Cut a square with sides that are 1-1/4" longer than the number in Step 1. (I'd round up to 17 and add 1 1/4 for a total of 18 1/4)

2. Cut the square in half twice diagonally.

Hope this helps!

Here you go.

Marcia has a huge amount of information on her website. It's not just blocks. :o)

Why not just lay them out on a large sheet until they please you, count how many "filler" pieces you need, and then get out your tape measure, pencil, and paper and write it all down? I always prefer to "eyeball" the real thing and do real measurements instead of relying on formulas and trusting my very poor math skills.

:o)

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This is just exactly what I was looking for. I use her site a lot but didn't know what to call it.LOL I have it saved.

GrammyKathy