Pin the front fabric piece to the back pulling it taught to ensure a snug fit.
How to make dining room chair covers for the seat.
How to re cover a dining room chair.
Then measure up the back of the chair from the floor to the top down the front of the backrest along the edge of the seat from back to front and from the seat down to the bottom of the legs.
For this project the chair was 44 inches high x 20 inches wide x about 22 inches deep.
Add another inch if you plan to make cushioned seats.
Pin fabric around the sides of your dining room chair beginning with the chair back.
You need about 3 yards of 45 inch wide fabric to cover one standard size dining room chair.
If you have an oversize dining table and chair set and your dining room chair is wider you may consider using 60 inch wide fabric to guarantee adequate coverage.
Take measurements of the chairs.
Include the width and the depth of your chair seat and add about a half inch for the seam allowance.
Using a temporary fabric pen trace a line three inches out from the seat and cushion.
Sew a slipcover out of fabric.
If you are making a simple cover with no cushion cut the fabric to the size needed and also cut fabric to be the liner on the bottom of the seat cover.