IMPORTANT: Match needle size to thread size and weight of fabric.
Matching needle / fabric / thread
9-11 (65-75)
NEEDLE
SIZE
FABRICS
THREAD
Lightweight fabrics-thin cottons, voile,
serge, silk, muslin, Qiana, interlocks,
cotton knits, tricots, jerseys, drapes,
woven polyester, shirt & blouse fabrics.
Light-duty thread in cotton, nylon or
polyester.
12 (80)
Medium weight fabrics-cotton, satin,
kettleclote, sailcloth, double knits,
lightweight woolens.
14 (90)
Medium weight fabrics-cotton duck,
woolen, heavier knits, terrycloth,
denims.
16 (100)
Heavyweight fabrics-canvas, woolens,
outdoor tent and quilted fabrics,
denims, upholstery material (light to
medium).
18 (110)
Heavy woolens, overcoat fabrics,
upholstery fabrics, some leathers and
vinyls.
Heavy duty thread, carpet thread.
(Use heavy foot pressure-large
numbers.)
Most threads sold are medium size
and suitable for these fabrics and
needle sizes. Use polyester threads
on synthetic materials and cotton
on natural woven fabrics for best
results. Always use the same thread
on top and bottom.
20
