Paper Pieces for English Paper Piecing

3-1/2" Half Square Triangles

3-1/2" Half Square Triangles - Main image
3-1/2" Half Square Triangles - View 23-1/2" Half Square Triangles - View 3
$21 $30 In stock

3-1/2" Half Square Triangles from Paper Pieces are available as papers and acrylics for English paper piecing and related triangle work. Choose the pack size and seam option that fits your project.

  • Available in Small Pack (24 pieces), Large Pack (144 pieces), and Bulk Pack (288 pieces).
  • Seam options include No Seam, 1/4" Seam, and 3/8" Seam.
  • Windowed versions are offered in 1/4" Windowed and 3/8" Windowed.
  • Brand: Paper Pieces.
  • Listed under Half & Quarter Square Triangles and Triangles & Variations.
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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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)

Natalie ★★★★★

The acrylics are so much sturdier than the paper ones I've used before, and the 3-1/2" size is perfect for my current quilt. I picked the seam option that lines up exactly with my fabric, so everything matches up cleanly.

Timothy ★★★★★

The pre-cut seam allowance is so precise that my points actually match up perfectly for once. I grabbed the small pack for a test run and the acrylic templates slide right through the paper pieces without tearing.

Andrew K. ★★★★★

I've been cutting triangles by hand for years, so having the 3-1/2" acrylic templates ready to go saved me a ton of trimming time on my last quilt. The seam option I picked lined up perfectly with my machine's quarter-inch foot.