What Thread to Use for Different Fabrics: Complete Guide
Sewing Basics7 min readUpdated February 28, 2026

What Thread to Use for Different Fabrics: Complete Guide

Learn which thread types work best with different fabrics. From cotton to polyester to silk, match your thread to your project for professional results.

What Thread to Use for Different Fabrics

Using the wrong thread can ruin an otherwise perfect project. Learn the simple rules for matching thread to fabric.

The Basic Rule

**Match your thread fiber to your fabric fiber.**
  • Cotton fabric → Cotton or poly-cotton thread
  • Polyester fabric → Polyester thread
  • Silk fabric → Silk or polyester thread
  • Wool fabric → Wool or polyester thread

Thread Weight Explained

Thread weight indicates thickness (counterintuitively, higher numbers = thinner thread):

WeightBest For
30wtTopstitching, decorative
40wtGeneral sewing, quilting
50wtPiecing, lightweight fabrics
60wtFine fabrics, machine embroidery

Thread Types

All-Purpose Polyester

Best for: Most projects, everyday sewing

  • Works with nearly all fabrics
  • Strong and durable
  • Doesn't shrink
  • Our pick: Gütermann Sew-All

Cotton Thread

Best for: Quilting, natural fiber fabrics

  • Slight stretch (good for quilts)
  • Matte finish
  • Can shrink with fabric
  • Our pick: Aurifil 50wt

Silk Thread

Best for: Fine fabrics, tailoring, basting

  • Very fine and strong
  • Leaves no holes (great for basting)
  • More expensive

Heavy-Duty/Upholstery Thread

Best for: Canvas, denim, leather

  • Extra strong
  • Thicker (30wt or lower)
  • Use with heavy-duty needle

Quick Reference Chart

FabricRecommended Thread
Cotton50wt cotton or poly
Linen50wt cotton or poly
SilkSilk or fine poly
PolyesterPolyester
DenimHeavy-duty poly
KnitsPolyester (stretchy)
Quilting50wt cotton
FleecePolyester

Thread Color Matching

For invisible seams:

  • Match thread to the dominant fabric color
  • When in between, go slightly darker
  • Gray works with most colors

For topstitching:

  • Match exactly, or
  • Use contrasting color for decorative effect

Common Thread Mistakes

❌ Using cheap thread (causes breakage, lint)

❌ Old thread (weakens over time)

❌ Wrong weight for project

❌ Mismatched needle and thread

Thread and Needle Pairing

Thread WeightNeedle Size
30wt90/14 - 100/16
40wt80/12 - 90/14
50wt70/10 - 80/12
60wt60/8 - 70/10

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