Estimates for a brick job can be made by using factors that include the cost-per-square foot for the brick and the size of the structure or wall. Preparing your estimate will require you to calculate various costs such as labour and materials that will be needed. You can estimate the cost of a brick job by calculating the area of the job by hand.
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Things you need
Calculate the size of the wall or structure to find the square footage by multiplying the width by the height, with a calculator. Use 20 x 5 as an example, to get a total square footage of 100.
Calculate the rate factor for labour, such as the amount of square feet per hour. Divide the square footage by the amount of square feet per hour. The result is the amount of hours to charge for labour. Multiply this number by the rate of labour per hour.
Determine the material cost for the wall or structure. There are generally seven standard sized bricks in a square foot, depending on the size of the brick used. Multiply the amount of bricks needed, per square foot, by the total square footage. This will result in 700 bricks (7 x 100 = 700).
Multiply the result from Step 3 by the cost per brick, for a 2010 example, use 10p. Find the total amount of material cost. This will give you a total of £113 (700 x 0.25 = £113).
Determine the amount of mortar that will be needed for the job. Multiply the amount of brick needed per 100 square feet by the thickness of the joint, such as 3/8. This will give you the amount of mortar that is needed, in inches, for every 100 square feet of brick. Divide the number by 12 to convert the amount to feet.
Divide the square footage in Step 1 by 100. Multiply this number by the amount of mortar per 100 square feet in Step 5. Divide this number by the amount of coverage per bag of mortar mix, to find the number of bags of mortar mix that will be needed.
Tips and warnings
- Labour costs should include the removal of old brick, if necessary, and the installation of new brick.
- Eight bags of masonry mix are typically used for every 1000 standard sized bricks.
- The average price for mortar mix is about £3 per bag.
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