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One of the items needed in Kindergarten was a seat sack. After the first set of 9 weeks ended, Cakey’s class still had quit a few students without one. I volunteered to sew up a few. Making your own DIY seat sack is pretty simple. All you need is a thick, sturdy material. I used a thick dark denim because it almost matched the black seat sacks the rest of the class were using.
A seat sack is just a hanging pocket on the back of the chair. It is fairly common in classrooms where a desk is not used. It allows the children to store their papers, folders, etc at their seat but not on top of the table.
DIY Seat Sack

The finished seat sack has a big pocket in the back that measures 11 inches tall by 13 inches wide. It also has a small pocket that it hangs by that measures 5 inches tall by 13 inches wide.
Supplies:
- Thick sturdy material
- Newspaper
- Scissors
- Tape measure
- Pen/pencil
- Straight pins
- Sewing machine and thread
Directions:
- On a piece of newspaper, measure a rectangle 14 inches wide by 34 inches long.
- Cut out your rectangle and use that as the pattern for your seat sacks.
- Lay the pattern on a piece of material and cut out the fabric.
- Repeat on the remaining fabric if making more than one.
- Fold over the sides of the fabric rectangle by a 1/4 inch and then a second 1/4 inch.
- Pin the fabric edges down to hold them together.
- Sew all around the fabric edges to seal them.
- On the bottom side, fold the short fabric up 11 inches to create the big pocket.
- Pin in place.
- Sew around the two fabric edges to seal them. But leave the third edge open.
- On the top side, fold the short fabric back (opposite the big pocket) 5 inches to create the small pocket.
- Pin in place.
- Sew around the two fabric edges to seal them. But leave the third edge open.

Tips:
- The pattern measures an inch bigger all the way around to account for the folding of the edges.
- If the chair from which the seat sack will be hanging is wider than 13 inches you can adjust the width measurement to accommodate.
- For added strength, you can use fabric glue to hold the sides of the pockets together. This is a good idea since little kids will be using them.
Making DIY seat sacks was so easy-peasy. I like how simple and functional they are. I ended up making 4 seat sacks for an afternoon of work.
Have a great day!
Brandi
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I love this!
Thanks!