Concrete Block Estimating Guidelines

Block

• 1.13 blocks per square foot of wall area
• 75% of length of wall gives number of block per course
• Wall height in feet times 1.5 equals number of courses

Brick

• 7 Standard modular bricks per square foot of wall area
• 5.5 Engineer (oversized brick) per square foot of wall area

Grout

• 1 Cubic Yard of Fine Grout: 1-part cement to 3.3-parts sand
• 2500 pounds of mortar sand
• 8 bags of Portland cement (94 lbs./bag)

Sand

• 1 Ton of mortar sand per 250 block
• 1 Ton of mortar sand per 1000 brick

 Mortar

• 1-part mortar (1-70 lb. bag) to 2 ½ parts sand (16 shovels or 320 lbs. of sand)
• 3 bags of mortar per 100 block
• 7 bags of mortar per 1000 brick

Wall Ties

• 1 per every 10 brick (50 per cube)

Vermiculite

• One 4 cubic foot bag fills 16 – 8” block or 9 – 12” block

Filling Hollow Block with Grout

• 12” block 1.44 cubic yards per 100 block
• 10” block 1.22 cubic yards per 100 block
• 8” block 0.93 cubic yards per 100 block
• 6” block 0.63 cubic yards per 100 block

Anchor Bolts

• 1 every 4 feet