Concrete Calculator
CONCRETE CALCULATOR FORMULA: EXAMPLE: 18 FEET LONG, 18 FEET
WIDE, 6
INCHES DEEP 


BLOCK
3 Bags Mortar per 100 Block (35 Block per Bag) 1000 Ib. Sand per 100 Block
1.125
Block per sq.ft. of Wall Area
75% of Wall Length give Block per Course
Number of Courses = 1.5 X Height
of wall
BRICK
Approx. 7 Bag of Mortar per 1000 Brick
Approx. 1 Ton Sand per 1000 Brick
Figure 7 Brick per Sq. Ft. (Allows
for Waste) 4.625 Courses Brick per foot of Wall Height
5 Brick per Sq.Ft. for Pavers, Hearths
CEMENT PLASTER
1/4" Thick (100sq.fl.) 220 Ib. Sand & .8 Bag Mortar
3/8" Thick (lOOsq.ft.) 330 Ib. Sand & 1.2
Bag Mortar
1/2" Thick (lOOsq.ft.) 440 Ib. Sand & 1.6
Bag Mortar
CONCRETE
For 3000 psi: 321 Mix1 Ton Gravel, 1/2 Ton Sand,
6 Bags Cement, 1Portland, 2Sand, 3Parts Gravel
WALLTIES
1 per every 10 Brick (100 Wall Ties per 1000 Brick)
ZONOLITE
4 Cu.Ft. Bag Fills Approx. 912" Block or 168" Block
12" Block
yields 11.5 Rvalue
8" Block yields 7,14 rvalue