How To Foundation Paper Piece

Try Foundation Paper Piecing with Love Patchwork & Quilting magazine

Inside every issue of Love Patchwork & Quilting, you’ll find our Block of the Month (BOM) by Lynne Goldsworthy.

The technique of Foundation Paper Piecing (FPP) is a very accurate method of patchwork, which is especially useful for piecing unusual or awkward shapes and achieving crisp, clean lines in your patchwork.

If you are new to FPP, Lynne Goldsworthy (our regular BOM expert from shows you how to foundation paper piece a 6in square Economy Block to get you started with this fabulous technique!

Foundation paper piecing FPP tutorial

Try this simple Economy Block tutorial to hone your FPP skills!


  • One copy of the full size template printed, traced, printed or photocopied onto regular printer paper or foundation paper
  • Fabric for the centre of the block, one 4in square
  • Fabric for the first round of triangles, two 3.5in squares cut in half on the diagonal
  • Fabric for the second round of triangles, two 4.5in squares cut in half on the diagonal
Foundation Paper Piecing cutting list

The fabric pieces that will be foundation paper pieced – see the You Will Need list above for details.


  • When foundation paper piecing, the fabric is sewn to the back of the template, which means that the finished block will be a mirror image of the printed template. It is important to know this, especially when piecing non-symmetrical patterns such as letters or numbers.
  • Seams are sewn along the printed lines on the template and the fabric is added to the block in the order shown by the numbering on the template. So the first piece is numbered 1, the second piece is numbered 2 etc. The outer line on the template includes the final seam allowance.
  • Shorten your stitch length to about 1.5 when sewing the seams for foundation paper piecing.
  • You can pre-cut your fabric pieces when foundation piecing, or cut them as you go along – it’s up to you. Since there are several repeated and regular shapes in this block, we are pre-cutting.
  • When cutting your fabric pieces for foundation paper piecing, add 1in to the block rather than 0.5in as in regular piecing, to add a margin of error.



1 Holding the template up to a window or other light source so that you can see the printed lines from the front of the template, pin the 4in square to the back of the template. It needs to be pinned so that it covers all of section 1 plus at least a 0.25in all round. It should also be pinned so that the right side of the fabric faces you, with the wrong side facing the template (Fig 1 below).

Foundation Paper Piecing Fig 1

Fig 1


2 Take one of the 3.5in half-square triangles to be pieced onto section 2 of the template. Pin it so that it is right sides together with the first piece and so that the edge sits 0.25in or so over the seam line between sections 1 and 2, as shown in Fig 2 below.

Foundation Paper Piecing Fig 2

Fig 2


3 To check whether the piece of fabric will cover section 2 and 0.25in beyond each seam line, pin along the seam line and pull the piece of fabric over with your finger (Fig 3 below).

Foundation Paper Piecing Fig 3

Fig 3


4 Shorten the stitch length on your sewing machine to about 1.5 (18–20 stitches per inch). This ensures that the paper will tear away easily when the block is finished.

5 Flip the template so that the printed side faces up and sew the seam between sections 1 and 2, sewing exactly on the line (Fig 4 first below). Extend your sewing line a few stitches beyond each end of the line (Fig 5 second below). Note: This rule of sewing a few stitches over at each end applies when the seam sits within the block and does not reach the edge of the block. If, however, the seam touches the edge of the block, continue the seam until you reach the dashed line of the seam allowance. You may need to move the pins away from the seam to make it easier to sew this line or even transfer them to the front of the template.

Foundation Paper Piecing Fig 4

Fig 4

Foundation Paper Piecing Fig 5

Fig 5


6 Fold the template along the seam line and trim the seam allowance on the fabric piece to 0.25in. Note that this seam allowance is trimmed after the seam is sewn. For the remainder of the block, the seam allowances will be trimmed before the seam is sewn (Fig 6 below).

Foundation Paper Piecing Fig 6

Fig 6


7 Fold the triangle over and press it flat. Section1 and 2 have now been pieced (Fig 7 below).

Foundation Paper Piecing Fig 7

Fig 7


8 To prepare to piece section 3, fold the template over at the seam line between sections 1 and 3, which is the seam that will attach section 3. Trim any excess fabric 0.25in beyond the fold line. You are trimming the seam allowance for the seam you are about to sew, which will make it easier to align the next triangle to be pieced (Fig 8 below).

Foundation Paper Piecing Fig 8

Fig 8


9 Repeat steps 2–5 to piece section 3, taking care to align the edge of the fabric triangle with the edge you cut at step 8. This will ensure that the seam allowance does not need to be trimmed after the seam is sewn (Fig 9 below).

Foundation Paper Piecing Fig 9

Fig 9


10 Flip the triangle over and press it flat to finished piecing section 3.

11 Repeat this same process to sew sections 4 to 9 (Fig 10 below). The stitches extending beyond the end of the seam lines may prevent you folding the template at the seam line. In that case, fold the paper template 0.25in beyond the seam line and trim alongside the fold (taking care not to cut the paper).

Foundation Paper Piecing Fig 10

Fig 10


12 Press the whole block. Flip the template so that the printed side is facing up and trim off excess paper, trimming the block to the outer dashed seam allowance line (Fig 11 below). Your block is now pieced and you can remove all of the paper.

Foundation Paper Piecing Fig 11

Fig 11

Foundation paper piecing FPP tutorial