Here are the numbers
Your width of fabric from salvage to salvage is generally 42-44. Cut off the salvage.
Just remember these numbers:
Standard = 42, 27, 9, 2.
Width = 42
Length = 27
Accent (end piece) = 9 (x42)
Trim = 2 (x42) This is optional
King = 44, 36, 9, 2
The 9" and 2" strips will be the width of the fabric (42 or 44).