When talking roofing materials. A square is considered a 10'x10' area or a 100 square feet. So you have 1,900 square feet. There are two basic types of felt: 15lb and 30lb felt. 15lb felt covers 4 sq= Total needed will be 5 rolls 30lb felt covers 2 sq= Total needed will be 10 rolls (*note, 30lb is more thick and better for your roof.
310.5 sq ft
23 square feet = about 2.14 square meters. (2.13676992 square meters)
13 ft by 23 ft = 299 ft2 and one standard sheet of plywood is 4 ft by ft = 32 ft2. 299 / 32 = 9.34 sheets, so you will need to purchase 10 sheets of plywood.
One sheet (4 ft x 8 ft) = 32 ft2 You might need to cut the sheet to fit in the specific space you have, but one sheet will have enough material to cover 23 square feet.
Two.
To cover a 12.5 x 23 ft room, you first calculate the area: 12.5 ft × 23 ft = 287.5 square feet. Each 4x8 sheet of plywood covers 32 square feet (4 ft × 8 ft). Dividing the room area by the sheet area gives 287.5 sq ft ÷ 32 sq ft/sheet ≈ 9 sheets. Therefore, you would need approximately 9 sheets of plywood to cover the room, but it's wise to purchase an extra sheet for mistakes or cuts.
0.23 acres is 10,018.8 square feet.
943 sq ft 9 and 1/2 squares of roofing
0.23 acres is 10,018.8 square feet.
There are 3 bundles of shingles in every square. A square is 100 square feet. In 23 bundles, you would have 766 square feet approximately
23 square feet = about 2.14 square meters
It is: 23 times 23 = 529 square feet