Sod rolls are 2 feet wide by 5 feet long. Each roll covers 10 square feet. A full skid of sod contains 75 rolls. Multiply, length in feet times width in feet divided by 10 = number of rolls required.
From the info I have from a sod supplier: each roll is 10sqft, there are 70 rolls on a pallet, so covers 700sqft
You'll need 144/9 = 16 rolls
Depending upon your application, rolls of sod come in a number of sizes. Sod can be harvested in small square slabs, rolled rectangles, or large 4-foot wide rolls. 10 square foot rolls, called "Little Rolls", are 24 inches wide by 5 feet long and comes 50 rolls to a pallet, or 500 square feet (sf) per pallet. The sod height is approximately 2" thick with 1 ½" of blade and ½ - ¾" of root base. Each roll weighs about 35 pounds. These rolls are best for the small to average sized yard. 210 square foot rolls, called "Big Rolls", are 24 inches wide by 105 feet long and will weigh about 900 pounds. We have for rent a sod installation machine for the big rolls. These rolls are best for large yards Sod blocks, used in pioneer earthen homes were 2 feet by 1 foot by 6 inches thick. Footnote: British people call it turf. Sod has a negative personal meaning.
A professional installer will always roll, especially if it is for a residence. The exception is on hills or grades as it may shift the sod. Many new houses don't as they don't want the extra expense.
Typically, a roll of sod is 18" x 36". Two rolls of sod is about one square yard. One square yard of sod is about 9 square feet. Therefore, your roll of sod is approximately 4.5 square feet (you can also get that by multiplying 36" - 3 feet x 18" - 1.5 feet).
Use a tiller to loosen the soil. Rake soil smooth. Unroll sod onto raked soil. Tamp in place with the flat of the rake head. Sprinkle topsoil along the seams between rolls of sod. Use a lawn roller to insure sod is firmly in contact with soil. Water new sod.
The size of a roll of sod at Home depot varies on the price that is being paid and the brand that is being purchased. It also depends on the variation of sod being purchased.
That's at least two days labour for two guys ( to do it properly )
The area of a circle with a diameter of 18 feet can be calculated by: A=pie x r x r . So, in this case A = 3.14 x 9 * 9= 255 square feet. If you know how many square feet are in a roll of sod, you can find your answer.
sod
Sod. Examples of companies that grow sod are Delta Bluegrass and Pacific Sod. Sod is a quick way to install turfgrass in an area, to create a lawn or other turf area. The other option is to grow the lawn area from seed. This takes longer and requires that foot traffic be kept away from the area until the seeds sprout and the lawn grows in to establish in the area enough to withstand foot traffic.