HOW DO I? Fine-tune the cutting diagram before cutting fabric
The cutting diagram shows exactly how the strips and pieces are best cut from fabric. Use it before cutting fabrics for a pattern or kit to avoid coming up short. Because yardage calculations can be fine-tuned for special circumstances like one-way fabrics or fabric grain.
The Yardage Calculator increments yardage by 1/8 yard, which is 4 1/2".
1 Figure yardage by entering piece dimensions and adjusting settings
For this example, we'll figure the yardage for:
- 4 — 6" blocks
- 44" wide fabric
- One-way design fabric
- Cut edge shrinking/squaring-up allowance to 1/2"
- Selvage edge shrinkage/squaring-up allowance to 1"
2 Review the cutting diagram
Check direction to fold fabric.
Check amount against the scale. The fabric is shown folded selvage-to-selvage. The scale confirms the 44" width of fabric (WOF) runs the length of the strip — as it should for a one-way design fabric.
White area — the Pieces. Pieces are shown as a strip marked with piece cut lines. The numbers '4' & '2' count out the four pieces needed from the folded strip. Follow this cutting diagram for 4 — 6 1/2" blocks, and the possibility of two more from the un-numbered block.
Yellow area — the Shrinking/Squaring-up Allowances. This shows the amount of the fabric that you can expect to loose after shrinking and squaring up the fabric — helping you visualize the impact of these allowances and help ensure you don't run short of fabric.
Squaring up is a key allowance to compensate for the trimming needed because fabric never comes off the bolt perfectly square.
Grey area — the extra fabric. Because the yardage calculator increments yardage in 1/8 yards (which is 4 1/2") there will usually be some extra fabric or scrap. When 'Least Fabric' is set the amount of extra fabric is minimized as much as possible.
In this example, a 6 1/2" block requires two 1/8 yard increments, so the yardage calculator recommends 1/4 yard.
The scale on the cutting diagram shows how many inches are in the grey area. If your shop allows you to purchase less than 1/4 yard you have the information you need to request less fabric. If you are working with a kit or a scrap you have the information you need to plan.