Creative articles about sewing

Sew a boxcushion with foam rubber filling

Sew a boxcushion with foam rubber filling for a wooden bench, a garden seat or the caravan. Do you think these corners are difficult? They are not at all. Follow this tutorial with pictures and you will find out it’s easy. Let’s start calculating the pattern.

I made it on the BERNINA 710

Image of BERNINA 710.


The BERNINA 710 offers many features to make sewing easier. Inventions such as the semi-automatic threading system, the BERNINA Stitch Regulator (BSR), the BERNINA DualFeed, and the embroidery system, are proof of this superior quality.

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Calculate the fabric:

Buy the foam filling in the right size, mine were:

  • 120 cm long
  • 40 cm wide
  • 5 cm thick.

I take the exact size of the foam, adding seam allowance and height of the filling.

So I cut two panels of 120 + 2 + 5 cm, this makes a 127 cm length.

And 40 + 2 + 5, makes a 47 cm width.


What do you need for a boxcushion:

  • Heavy weight cotton fabric, outdoor quality if possible
  • Mettler Seralon naaigaren in a matching colour
  • Foam filling in the right size

I have finished all edges with the overlock. In fact, you only need to overlock the edge you will leave open for turning the cushion, but I liked a neat look for the pictures and it’s comfortable to work with finished edges.

Sew a boxcushion with foam rubber filling

Iron a 1cm seam allowance to the wrong side for each pattern piece. Place both fabrics right sides together.

Pin the fabric together, but leave 1/3 in the middle open, on a long side. You will need this opening to turn the cushion after sewing.

Sew the seams with a 1 cm seam allowance. Sew in the fold for the ironed side. Secure stitches at the beginning and the end of the seam.

I have a clear view on my work with Open embroidery foot # 20

Image of Open Embroidery Foot #20.

Open Embroidery Foot #20

Perfect for sewing decorative stitches ✓   Creation of attractive appliqué designs ✓  Allows lines and patterns to be followed precisely ✓   An open form for a clear view of the project ✓  For 5.5 mm and 9 mm machines ✓ 

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How to sew the corners:

Fold the corners open, and be sure that the front and back seam match (check with a pin through both).

Draw a perpendicular line over the seam. The length is the same as the height of the foam filling, so mine is 5 cm.

I draw this 5 cm line in the right place and sew it with a straight stitch.

Turn the cushion inside out and put the foam filling in it. It helps to roll the filling and unroll when the corners on one side fit in.

Close the open seam by hand sewing.

Naai een boxkussen met schuimrubber vulling

Let’s invite guests for a garden visit. The weather forecast is great!

Free sewing instructions: boxcushion with foam rubber filling

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