Mix Tables

Number of 80 lb. Gravel Mix Bags Required
Diameter of Tube Bags per Foot of Tube
6" 1/3 Bag
8" 1/2 Bag
10" 1 Bag
12" 1-1/4 Bag


Number of 80 lb. Bags of Gravel Mix Required
Slab Thickness /
Area in Sq Ft
2 3 7 15 20 45
2" 1/2 3/4 1-3/4 3-3/4 5 11-1/4
3" 3/4 1-1/4 2-3/4 5-3/4 7-3/4 17
4" 1 1-1/2 3-1/2 7-1/2 10 22-1/2
5" 1-1/4 2 4-1/2 9-1/2 12-3/4 28-1/4
6" 1-1/2 2-1/4 5-1/4 11-1/4 15 33-3/4


Number of 80 lb. Bags of Mortar Required
To lay bricks 8" x 2" x 4" with 3/8" joints
Number of Bricks 50 100 200 500
80 lb. Bags 3/4 1-1/2 3 7-1/2
In building a wall, approximately 6-1/2 bricks 8" x 2" x 4" laid with 3/8" joints are required per square foot. In paving a walk or floor, approximately 4-1/3 bricks 8" x 2" x 4" with 3/8" joints are required per square foot.

To lay bricks 8" x 16" x 8" with 3/8" joints
Number of Bricks 20 27 100 500
80 lb. Bags 3/4 1 3-3/4 18-1/2
In building a wall, approximately 1 block 8" x 16" x 8" laid with with 3/8" joints is required per square foot.