US Standard sized bricks are 8 x 4 inches.
12 feet = 144 inches;
144/8 = 18; (you will need rows of 18 bricks)
144/4 = 36; (you will need 36 of these rows)
18*36 = 648
If you have different sized bricks, just run the calculations with those numbers instead.
144
192 of them. Get extra for breakage.
168
38
A lot !!
144
192 of them. Get extra for breakage.
168
This needs more information to supply a "best" answer. A 12ft by 12ft patio gives a surface area of 16 sq.yds. A yard of concrete is a cubic yard. The number of cubic yards depends on the thickness of the slab, and the size and depth of foundations (if any). This depends on the type of soil and subsoil, and whether you have very cold winters. If you live in a warm area, 3 yards is probably about right. If you are planning to do this yourself, try asking your local building inspector for his advice.
38
A lot !!
115 should do it!
2700 4" x 8" bricks (plus 10% waste)
1,350 of them.
81 bricks.12 feet times 12 inches per foot = 144 inches.144 inches divided by 16 inches per brick = 9 bricks in length/width.9 bricks (length) times 9 bricks (width) = 81 bricks.
144
White patio umbrellas can be purchased at many places, including online stores. If you want a brick-and-mortar experience, try Walmart or a home-improvement store like Lowes.