| Plain skirt: | |
| Length of skirt (hip to floor) | ............. cm / inches |
| Add 10cm (4") for tier seam allowances, elastic casing and hem | ............. cm / inches |
| Divide total measurement by three | ............. cm / inches |
This final measurement is the length you need to cut for all of your tier pieces | |
Skirt with coloured trim: | |
| Length of skirt (hip to floor) | ............. cm / inches |
| Add 10cm (4") for tier seam allowances and elastic casing | ............. cm / inches |
| MINUS 7.5cm (3") for the coloured trim | ............. cm / inches |
| Divide total measurement by three | ............. cm / inches |
This final measurement is the length you need to cut for all of your tier pieces | |
| Width of the hem of your skirt | ............. cm / inches |
| Divide the hem measurement by the width of your trim fabric | ............. |
This tells you how many pieces you will need to cut to make your trim. Round the number up to the next whole number. For example, if it worked out to be 8.2, then call it 9 widths. Now, you need to allow extra fabric for your seam allowances (0.6cm / 1/4" seams), plus an extra 2.5cm (1") for overlap of the final seam. This is usually only about an extra 15cm (6") or so. If the number you calculated was rounded up to the next whole number, then that should give you plenty of extra fabric for those allowances. If however, your number was really close to a whole number (like 8.8 or 8.9), then it won't give you enough extra. In that case you'd need to add in a whole extra fabric width. For example, if my calculation worked out to be 8.2, round that up to 9. That is plenty. However, if my calculation worked out to be 8.8, round that up to 9. That little extra 0.2 might not give me quite enough fabric, so I'd need to round it up to 9, and then add a whole extra width, making it 10 in all. | |
| Round up your calculation to the next whole number. (add 1 extra if necessary) | ............. |
| Multiply this number by 18cm (7 1/4") | ............. cm / inches |
This is the amount of fabric you need to purchase for your trim. | |