Often asked: How To Sew The Corner Of A Cushion Cover?

How to Sew Boxed Corners

The boxed corner seam turns a flat piece of fabric into a three-dimensional object that can be used to make cushions, tables, and other items. I’m no expert sewer, but mastering these basic techniques has allowed me to create unique and perfectly-tailored items.

Measuring and Cutting Your Fabric for a Boxed Seam

If you want to make a tailored table cloth, ottoman slipcover, or even a stool cover, you’ll need to measure the item you’re covering. A note here on letter C u2013 the amount needed for hem and/or seam allowance. Once you have your measurements, cut the fabric down using a rotary cutter and ruler.

How to Sew Boxed Corners – Method 1 (The Really Easy Way)

If your fabric frays or you want to keep the edges from rolling, use a wide zig-zag stitch or a serger to sew the two edges together using a 1/2u2033 seam allowance. If your fabric frays or you want to keep the edges from rolling, use a wide zig-zag stitch or a serger.

How to Sew Boxed Corners – Method 2 (French Seams)

This method involves sewing the WRONG sides of your fabric together and pressing it flat with a hot iron. Then sew the seam again, this time with the RIGHT sides together.

How do you sew a corner on fabric?


  1. Unfold the second fold so that only the raw edge seam allowance is folded over.
  2. Draw a diagonal line in fabric marker connecting the two marks.

How do you make a right angle corner?

How to Sew a Right-Angle Seam (Tutorial)

  1. Pin the right sides of the fabric together.
  2. Stitch until the apex point (where the seam allowances meet) with short stitches.
  3. Carefully clip the seam allowance up to the stitching line (snip into only the bottom layer, the one with the angle in).
  4. Pin the other sides together.
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What does it mean to miter a corner?

A mitre joint (often called a miter joint in American English) is formed by cutting each of the two parts to be joined across the main surface at a 45u00b0 angle to form a 90u00b0 angle.

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