Bermuda and bluegrass are generally the least expensive sod because they are the most commonly grown. You could expect to pay about 15 cents to 30 cents per square foot as of 2010.
A more expensive and slow-growing sod is buffalo grass. This particular sod cost about 45 cents per square foot as of 2010.
A highly expensive type of sod is bent grass, which is generally used on sports fields and golf courses. The sod cost about $1.10 per square foot as of 2010.
You can expect to pay almost double the amount of the sod if you have the sod professionally installed instead of doing it yourself.