Paper Pieces for English Paper Piecing

4" Clamshell

4" Clamshell - Main image
4" Clamshell - View 24" Clamshell - View 3
$6.46 $9.5 In stock

The 4" Clamshell from Paper Pieces is a versatile shape for English paper piecing projects. Available in multiple options to suit your technique and project size.

  • Choose from various seam allowances: 1/4" Seam, 3/8" Seam, or No Seam for precise piecing.
  • Windowed versions (1/4" and 3/8") allow for easy fabric placement and alignment.
  • Packs available in Small (14 pieces), Large (84 pieces), or Bulk (168 pieces) for any project scale.
  • Made by Paper Pieces, a trusted brand for English paper piecing supplies.
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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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Returning an item

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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 (4.8 / 5 · 5 reviews)

Ava ★★★★★

The pre-cut seam allowance markings on these clamshells are a lifesaver for a beginner like me, making each curve so precise. I’ve already prepped a whole stack for my next quilt.

Ryan ★★★★★

I love how the 4" clamshell’s multiple seam allowance options let me switch between projects without buying new templates. The 1/4 inch seam allowance made my first English paper piecing block come together perfectly.

Thomas T. ★★★★★

The 4” clamshell cut cleanly on my cutting mat, and having multiple seam allowance options made basting way less fiddly. I’ve already got three projects lined up for these little pieces.