Estimating in Building Construction

(Kalthiya AryanmXZGQq) #1
Masonry 127

EXAMPLE 11-2 FACE BRICK


Using the west wall that was quantified in the previous example,
most of the dimensions can be reused. The gross area will be
slightly different, as the exterior face dimensions will be used rather
than the face dimensions of the concrete block.


Assuming modular brick, there are 675 bricks per 100 sf of
wall (refer to Figure 11.6).


The labor hours and labor costs can be determined using the pro-
ductivity rates found in Figure 11.14.


Waste@ 5 percentUse 6,131 bricks

Number of bricks5,839 bricks

Number of bricks 8. 65 hundred sf of wall 675

Net wall area970 sf105 sf865 sf

Area of openings105 sf (from Example 11-1)

Gross wall area 16 ¿ 2 –  60 ¿ 970 sf

FIGURE 11.14.Labor Hours Required to Lay 1,000
Standard Size Bricks. 

Type of Bond Mason Laborer
Common 10.0 to 15.0 11.0 to 15.5
Running 8.0 to 12.0 9.0 to 13.0
Stack 12.0 to 18.0 10.0 to 15.0
Flemish 11.0 to 16.0 12.0 to 16.0
English 11.0 to 16.0 12.0 to 16.0

Note:


  1. The more corners and openings in the wall, the more
    labor hours it will require.

  2. Add for the following brick types:
    Norman Brick +30%
    Roman Brick +25%
    Jumbo Brick +25%
    Modular Brick Same as Standard
    Jumbo Utility Brick +30%
    Spartan Brick +25%


FIGURE 11.13.Bricks Required per Square Foot of Wall Surface.
Free download pdf