For example, if the waist straps on the apron that you are using as your example are 20 by 2 in (50. 8 by 5. 1 cm), then your rectangle would need to be 10 by 4 in (25 by 10 cm) plus 1 in (2. 5 cm) seam allowance, so 11 by 5 in (28 by 13 cm). Only make 1 waist strap pattern and cut it out 2 times to get 2 waist tie pieces.
Pinning your pattern on the fold saves you the trouble of cutting out 2 pieces for each part of the apron and sewing them together again.
Make sure to use a pair of sharp fabric scissors to cut out your pieces and be careful not to create any jagged edges as you cut.
Repeat this for each of the strap pieces.
This opening is required to invert the strap fabric through, so make sure that you include it! Remove the pins as you sew! Otherwise, you may damage your sewing machine.
Repeat this for the other 2 straps. The back end of a chopstick or the back of a capped pen will also work to push out the fabric at the corners.
This will close the opening you left and tack down the edges of the strap for a nice, neat look.
Make sure that you remove the pins as you sew. Do not sew over them or you may damage your machine!
Place a couple of pins through the fabric to secure the strap ends in place.
Repeat this for the other end of the neck strap.
Repeat for the other strap. You may want to slip the apron over your neck to locate your waist before you pin the straps in place.
Repeat for the other waist strap on the opposite side.
