3-1/4" Half Square Triangles

$4.83 $7 In stock

3-1/4" Half Square Triangles from Paper Pieces are paper and acrylic pieces for English paper piecing. Choose the option that fits your project.

Available in 1/4" Seam, 3/8" Seam, and No Seam options.
Windowed versions available in 1/4" Windowed and 3/8" Windowed.
Pack sizes include Small Pack: 30 Pieces, Large Pack: 180 Pieces, and Bulk Pack: 360 Pieces.
Brand: Paper Pieces.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

William R. ★★★★★ Oct 22, 2026

These 3-1/4" papers are just the right size for my scrappy quilt blocks. I tried the 3/8" seam and they hold their shape nicely while I baste and stitch.

Thomas Q. ★★★★★ Oct 21, 2026

The 1/4" seam option lined up perfectly with my paper templates for a baby quilt I'm working on. The acrylic pieces are crisp and cut precisely, making the basting process much faster than with paper alone.

Abigail Q. ★★★★★ Oct 20, 2026

I tried the 3/8" seam option for a quilt I'm piecing, and the acrylic pieces hold up perfectly under repeated use. The paper shapes are crisp and easy to baste around, making the whole process feel much smoother than with my old templates.