Math🤯?
 

I’m trying to get measurements for a borderfor a 90”x90” quilt.
If I only have one yard what is each strip cut to?

Edited to add yardage is 45”.

Are you going mitered or non mitered?

Either way

If cutting on the length of grain -

I would cut eleven 3-3/4 inch strips = 41-1/4 inches

If one is comfortable cutting 3-7/8 wide strips = that would use up 42.58 inches of width.

Theoretically, one could get eleven 4-inch wide strips from a 45 inch width - but i would go for the slightly narrower width.

11 strips will give you 396 inches total of length - you might want to play with where you want to place the seams.

No matter which way you cut it, you will have to do some piecing to get the needed lengths.

P.S. Those are theoretical measurements - your piece of fabric may not be cut "exactly" straight

I would cut lengthwise strips for three reasons:

1) Lengthwise usually has less stretch
2) The piece may or may not be cut exactly straight/even
3) This will have to pieced anyway, and I think it is easier to cut shorter lengths

How I arrived at those numbers:

Use the perimeter measurements plus four additional border widths plus seam allowances.

Was given the 90 inch measurements and decided to use 4 as a border width guess and used 6 for seam allowances

(90 + 90 + 90 + 90 + 4 + 4 + 4 + 4 + 6) = 380

Divide 380 (approximate total length needed) by 36; approximate length of fabric available

380 / 36 = 10.55....

So - I would need to cut 11 strips - which would give me 396 inches of length

Then I would start multiplying various numbers by 11 to see what I come up with:

4 x 11 = 44 (too close for my comfort - let's try something narrower)
3-7/8 x 11 = 42-5/8 - I can deal with that
3-3/4 x 11 = 41-1/4

These numbers are theoretical -

Wait - don't we need to know how wide she wants the borders to be??

Mitered borders take more yardage, so you're probably better off with straight borders.

Bless you!!! Can we live next door to each other? ��

Your border strips are not each 90”. Two sides will be 90” plus 2x whatever the width of the borders. Also she says she only has 1 yd of 42” wide fabric

The strips will have to be pieced together to get an adequate length.

Whether they are cut lengthwise or crosswise from a piece of fabric that is 36 inches long by 42 to 45 inches wide.

I think you will need 10 strips so you should be able to cut them no more than 3.5 wide