Best Batting for Memory Quilts and T-Shirt Quilts

Memory quilts and T-shirt quilts have unique requirements — the stretchy, irregular base fabrics require special handling and a batting that works with interfacing to stabilize the sandwich. Here’s the complete guide.

Linda’s Electric Quilters Expert Guide

Memory & T-Shirt Quilt Batting Comparison

Batting Works With T-Shirt Fabric? Notes Verdict
Hobbs 80/20 (low loft) Yes — with interfacing on t-shirts Top Pick Stable, standard, familiar to longarm Best all-around choice
Hobbs Polydown 6oz Yes — with interfacing No shrink, durable, holds loft after wash Good for everyday memory quilts
Hobbs Thermore (ultra-thin) Yes — excellent with interfacing Flat Option Minimal bulk at thick t-shirt seams Best when seam bulk is a concern
High-loft poly (9oz+) With caution Heavy weight may stress t-shirt seams Use only if warmth is priority
▶ The Essential Step Every t-shirt block must be stabilized with fusible interfacing (Pellon SF101 or equivalent) before cutting and piecing. T-shirt knit fabric stretches and distorts without stabilization — no batting choice compensates for an unstabilized top. Fuse interfacing to every t-shirt block first.

T-Shirt Quilt Construction Tips

Before cutting

  • Fuse SF101 or similar to the wrong side of each shirt
  • Let interfacing cool completely before cutting
  • Trim all blocks to a consistent size after fusing
  • Keep a square ruler nearby — t-shirt graphics are rarely square

At the longarm

  • Load carefully — thick seam intersections create bumps
  • Use a lower loft batting to minimize bulk
  • Stitch at medium density — very dense stitching looks heavy on t-shirts
  • Use neutral thread that blends with most shirt colors

Frequently Asked Questions

Do I need a special needle for t-shirt quilt longarm work?

A stretch needle is ideal if your machine supports it. If not, a size 18 or 19 standard longarm needle works well. The interfacing stabilizes most of the stretch issue, so a standard needle is usually adequate.

How do I handle the thick seams in a t-shirt quilt?

Use a thinner batting (Thermore or low-loft poly) to reduce overall sandwich thickness. When loading, smooth the thick seam areas carefully. Some longarm operators slow their speed when crossing thick seam intersections to prevent needle deflection.

Can I use Hobbs Thermore for warmth in a memory quilt?

Thermore is ultra-thin and provides minimal warmth. For a memory quilt that will be used as a bedcovering, use Polydown 6oz or Hobbs 80/20 instead. Thermore is the right choice only when seam bulk is more of a concern than warmth.

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