Measuring Foam Larger Then Cushion?

I used to have my own upholstery shop. If you are doing a cushion for a chair, cut it 1/2 inch larger on all sides, cut the material the same side so when you sew up the cushion cover it will fit snugly on the foam. You can spray the foam with silicone spray if you are having trouble getting it stuffed into the cover. If you are making a long cushion you will want to add 1 inch to the length (long side) and 1/2 inch to the width (narrow side) If you need more help email me at alsellars AT toast.net .