How much seam allowance should I add?
A 5/8″ (1.5cm) seam allowance is generally considered a standard. As this provides enough extra between the seam line and the cut edge of the fabric to ensure that the layers are all stitched when joining. It is also important for materials that unravel easily.
What is 1/4 seam allowance CM?
For international suitability purposes, use 3/8″ (1 cm) or 5/8″ (1.5 cm) as seam allowances. 1/4″ translates well too, to 0.5 cm. They’re not exact (1/4″ is actually 6 mm), but they’re close enough to be usable.
How do I know if my sewing pattern has a seam allowance?
When reading through a pattern before starting (always recommended), look for what the seam allowance is. This measured distance is the width between the ragged edge and where the seam is to be stitched. Sometimes the type of pattern, design, or fabric requirements determines which size seam allowance will be used.
What is the difference between seam allowance and seam line?
Seamline is the line that you sew along, usually 5⁄8 inch in from the cutting line (outermost edge of the pattern piece that you cut along). Seam allowance is the distance between the cutting line and the seamline. This allowance is usually hidden inside the garment once it is sewn.