We have sources for almost all automotive replacement leather. For U.S. Assembled cars, see your Detroit annual sample book, just as you do for cloth and vinyls.
Automotive match up leather is available "cut to size", or by the half or full hide.
Several "perforated" styles are available in "cut to size" or in half hides.
Matching vinyls are often available, plain or perforated.
Leather is ordered by the square foot. For a full hide enter a quantity of 50. For a 1/2 hide enter a quantity of 25.
Full hides will vary in size but are usually 45-55 square feet. Delivery about 1 week.