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# Thread: 1600 Jelly Roll quilt?

1. The 1600in jelly roll quilt comes out at 48in x 64in before any borders are added. Has anyone calculated a version for a double/king quilt?

I.e. how many strips, or jelly rolls to give the larger sizes?

2. Here's the formula. I was using it for calculating wider strips but just plug in your desired quilt size, FINISHED width of strips and WOF for the approx number of strips needed.
http://www.quiltingboard.com/t-146958-1.htm#4014605

3. Originally Posted by MTS
Here's the formula. I was using it for calculating wider strips but just plug in your desired quilt size, FINISHED width of strips and WOF for the approx number of strips needed.
http://www.quiltingboard.com/t-146958-1.htm#4014605
Thank you very much. I knew someone would be able to help.

4. So say a king is 97 squared.

97" (length of quilt) divided by FINISHED strip width 2" = 49 (rounded up)
97" (width of quilt) x 49 strips long = 4753 inches
4753" divided by 40 (width of fabric est) = 119 strips plus 5 for extra(?)

I really like the idea someone posted elsewhere about adding a contrasting square to the end of each strip when first sewing them together end to end.

And definitely don't forget to chop off some from the first strip.

5. Originally Posted by MTS
So say a king is 97 squared.

97" (length of quilt) divided by FINISHED strip width 2" = 49 (rounded up)
97" (width of quilt) x 49 strips long = 4753 inches
4753" divided by 40 (width of fabric est) = 119 strips plus 5 for extra(?)

I really like the idea someone posted elsewhere about adding a contrasting square to the end of each strip when first sewing them together end to end.

And definitely don't forget to chop off some from the first strip.
Good idea about the contrasting square, though some that I have seen, they seem to come in too close and I tend to not like. Some it works great. Maybe it's dependent on the amount of contrast in the square?

I like the ones that have joined each strip on the bias better as it doesn't draw your eyes to the join quite so much.

And of course, there are so many variables!!

FYI for the OP ... the 1600 ... originated as 40 strips @ WOF (40")
40x40 = 1600

6. Yeah, I think I'd want CONTRAST.

And they could be put on also with bias cuts. Hmmm, maybe different widths.

Picture it wth a "hit" of something next to all those cuts...and they don't have to be squares - it could just be sliver of something else.
http://blog.heirloomcreations.net/?p=1897

7. I have done 2 with bias cuts, and one with the contrasting square added at the 2 strip wide stage - the squares are 4.5".

8. Originally Posted by 1000projects
I have done 2 with bias cuts, and one with the contrasting square added at the 2 strip wide stage - the squares are 4.5".
Can you show us a picture please? This is intriguing as I'm thinking that you are putting in a full strip of blocks. Yes? No?

MTS, I think you are meaning a block in between each strip as it's added to the original 1600". Yes? No?

As I said, I have seen some of the block inserts look great, but more of them not so IMHO. Good thing we all have different likes/dislikes!!! That's what keeps it interesting, plus challenges us sometimes to try something different.

9. Originally Posted by QuiltE
MTS, I think you are meaning a block in between each strip as it's added to the original 1600". Yes? No?
Yep, right in the first stage of sewing the strips end to end.

I don't think there'd be an opporunity to add fabric later on as you're sewing the seams.
Although you could sew it between the two pieces after you've made the first cut, but then you'd get thinner strip throughout the whole piece. Which could be very interesting....a 1/2" of a striped fabric thrown in.

I think you can only plan so much when making one of these.
If you change the width of the quilt, you would change the distribution of the extra squares/fabric strip in the quilt top.

I'm sure there is some algorithm I could use to figure it all out.
I'll pass on that little exercise and take my chances. :mrgreen:

10. Originally Posted by MTS
So say a king is 97 squared.

97" (length of quilt) divided by FINISHED strip width 2" = 49 (rounded up)
97" (width of quilt) x 49 strips long = 4753 inches
4753" divided by 40 (width of fabric est) = 119 strips plus 5 for extra(?)

I really like the idea someone posted elsewhere about adding a contrasting square to the end of each strip when first sewing them together end to end.

And definitely don't forget to chop off some from the first strip.
Thank you, that was helpful. I was thinking it would take at least two jelly rolls or the equivalent, but it seems it needs almost three.

11. Originally Posted by MTS
Originally Posted by QuiltE
MTS, I think you are meaning a block in between each strip as it's added to the original 1600". Yes? No?
Yep, right in the first stage of sewing the strips end to end.

I don't think there'd be an opporunity to add fabric later on as you're sewing the seams.
Although you could sew it between the two pieces after you've made the first cut, but then you'd get thinner strip throughout the whole piece. Which could be very interesting....a 1/2" of a striped fabric thrown in.

I think you can only plan so much when making one of these.
If you change the width of the quilt, you would change the distribution of the extra squares/fabric strip in the quilt top.

I'm sure there is some algorithm I could use to figure it all out.
I'll pass on that little exercise and take my chances. :mrgreen:
Ditto ... I think you did more than enough of the math calculations!!

The length/width really does change as each seam is sewn, and by starting a little longer or shorter, it changes the end shape.

I'm looking forward to doing one, and am debating totally random of fabric choices ... or keeping within one family of colours. Of course, who said that there should only be one!! :)

12. How do calculate for a smaller quilt top, say 38x38 or 44x44. I couldn't find the aforementioned calculator. Thanks!

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