Questions? cher@designsbystudioc.com

Making the Seat Cushion


DIY Furniture Plans to Build an Upholstered Chair, Part Four – The Seat Cushion

We are at the finish line with the DIY furniture plans to build an upholstered chair with Part Four: creating the seat cushion. This is actually one of the easiest parts of the build even though there are a lot of steps. The attention to detail is what makes this chair look so professional! As a recap, Part One is the supply and materials list, Part Two is the plans to build the wood frame, and Part Three is a tutorial on upholstering the frame.

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion

Cut List for the Upholstery Fabric:

  • 2 – 24″ x 24″ square for the cushion top and bottom
  • 1 – 6″ wide strip at 96″ long for the cushion gusset (the sides)

To Create the Cushion:

The cushion will be 5” thick. I purchased a piece of foam measuring 4” x 22” x 22”, then cut a piece of the 1” foam to fit. Foam can also be purchased in a 5″ thickness from eBay, Amazon, or your favorite upholstery supplier.

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion_Foam

Cut a piece of cushion wrap (upholstery batting) and wrap it around the foam, securing it with a needle and thread. This softens the edges of the foam and makes the cushion a little more full and comfortable.

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion_Batting Sewn

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion_Batting Completed

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion_Batting Corner

For the cover, cut two pieces of fabric measuring 24” x 24”, and a strip measuring 6” x 96”. It’s perfectly OK if the gusset has to be pieced – that’s what I had to do in order for it to be long enough!

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion_Fabric

Pin the strip to one of the squares of fabric, clipping the strip to turn the corners. As the clips are being cut, fold the gusset in half to cut the clip in the opposite end for the corresponding corner on the other side of the cover.

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion_Clip Both Edges

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion_Clip Corner

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion_Pinned Corner

Stitch then ends together to close the gusset.

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion_Seam

Sew the gusset to the square cover piece using a 1/2″ seam allowance.

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion_Sew

Repeat for the other side but leave one end open so that the cushion can be inserted, and turn the cover right side out.

Place the cushion in a large trash bag (trust me on this) and insert the cushion into the cover with the open end of the trash bag first. Pull the trash bag out and arrange the cover on the cushion for a better fit. The trash bag keeps the foam and batting from gripping the fabric – no wrestling with it! (Grey is a theme in my house so the cushion is hard to see on the rug!)

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion_Insert

Hand sew the opening closed and place the cushion on the chair frame.

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion_Stitch Cover Closed

If the cushion cover needs to be removable, I created an easy step-by-step tutorial to make a cover with a velcro closure.

DIY Furniture Plans to Build an Upholstered Chair, Part Four - The Seat Cushion_Completed Chair

Have questions about the DIY furniture plans to build an upholstered chair with Part Four: creating the seat cushion? Leave a comment below!

Some posts on DbSC contain affiliate links to products used in that particular project or plan. As an Amazon Associate I earn from qualifying purchases and these links will be clearly noted.