Determine the amount of brick, mortar, accessories, and any other related items required the Real Estate Office in Appendix E. Using the labor rates from Problem 7-31 and the crew rate for the masonry crew from Problem 7-32 determine the cost of the masonry.

Question

What will be an ideal response?

Answer 1

The following quantities can be extracted from the model. The brick is found by doing a material takeoff of the walls and filtering out brick.





All of the 24?? × 48?? windows are in the exterior walls. Only 2 of the 36?? × 72?? windows are in the exterior walls. The 20 each 36?? × 84?? doors are in the interior walls. The other doors are in the exterior walls.



Area of wall = (70? + 50? + 70? + 50?) × 9?1?? = 2,180 sf



Area of openings = 34 × 2? × 4? + 2 × 3? × 6? + 3? × 7? + 6? × 7? = 371 sf



Area of brick = 2,180 sf – 371 sf = 1,809 sf = 18.09 sq



From Figure 12.6, there are 675 bricks per square.



Number of brick = 18.09 sq × 675 bricks per sq = 12,211 bricks



Add waste.



Number of bricks = 12,211 bricks × 1.05 = 12,822 bricks



From Figure 12.6, 7.2 cubic feet of mortar is required per square.



Mortar = 18.09 sq × 7.2 cf per sq = 130 cf



Using one tie for every 2.66 square feet, we get:



Ties = 1,809 sf / 2.66 sf per tie = 680 ties



Extend the steel lintels 4 inches on each side. The following lintels will be needed:



34 each @ 32?? for the 24?? × 48?? windows



2 each @ 44?? for the 36?? × 72?? windows



1 each @ 44?? for the 36?? × 84?? door



1 each @ 80?? for the 72?? × 84?? door