Master Directory of All Puff Quilt Instructional Posts You are currently reading post three.
Now that the planning is done, you are ready to start doing the math needed to help us make a puff quilt.
You start by measuring from inside seam to inside seam. I didn’t add the sewn edges because I have a special use for those later that will save us a lot of time in the end. Did you just guess binding? You smart thing!
My sheet measures 109″ X 89″. It isn’t exactly standard because each manufacturer decided the size of their individual sheets on their own. After you measure your sheet without the seams, you have to figure out the size of your middle layer of squares. By playing with the numbers, I discovered that 109 divided by 20 equaled 5.45 and 89 divided by 17 gives me just about the same number. This means I can cut 6 inch squares and have plenty of room for a seam allowance. The seam allowance is the amount of space between where you start sewing and the edge. Because I divided it by 20, I’ll have 20 squares across the top of my quilt and 17 going down the side. Multiply those two numbers and you’ll see how many squares you’ll need to make total. 20 X 17 = 340 squares.
Calculating the Number of Squares That Can Be Made from Your Quilt Material:
A normal twin sheet, after cutting the edges off would give me 112 squares. To figure that out, I divided both the length and width by the size I was making my squares and then multiplied. So, 52 divided by 6 is 8.67 (rounded down to 8) and 88 divided by 6 is 14.67 (rounded down to 14). Multiply 8 by 14 and you get 112 six-inch squares that could be cut out from this.
Using this knowledge, I then figured out the amount of squares I could get from each size sheet so I could find the most cost effective route. King = 289, Queen = 238, Full = 154 So I’ll cut my squares from a king and a twin to ensure I have plenty.
The top part of the blanket will be one inch extra on each square, meaning a 7X7 inch square. Some people make it two inches larger than your middle square but I don’t want that much puffiness in my quilt. Using the above math, that means I can get 84 squares from a twin, 120 from a full, 180 from a queen, or 225 from a king. Remember how I’ll be needing 340 squares total? I’ll purchase one queen and one king sheet to make that happen.
Whatever your dominant color will be in your quilt, don’t forget to buy matching thread. I’d go with two spools just in case. Adding in the cost of thread breaks down the cost like this (two different costs for comparisons, one for second hand, one for Walmart):
My vote? Shop around. You can find some amazing stuff at decent prices if you search. Or maybe you even have sheets hiding in your linen closet that you can use. Check the clearance at Bed, Bath and Beyond as well as Target. I’ve seen sheets for under $10 at those places.
Now that you know what you need to go buy, hop to it! And don’t forget to join us for the next post here at HomeVenn.com where I’ll be showing you the easiest way in the world to cut up those sheets!