Math Formulas Flashcards
1
Q
Square Feet
A
L x W
2
Q
of Brick
A
SF x 7
3
Q
of Block
A
SF x 1.125
4
Q
Square Yards
A
(L x W) \ 9
5
Q
Cubic Yards
A
(L x W x H) \ 27
6
Q
Rebar Quantity
A
(Form - Cover) \ (On Center Spacing +1)
7
Q
Quantity of Studs
A
Length \ (On Center Spacing +1)
8
Q
Linear Feet
A
End to End Measurement
9
Q
Door Rough Opening
A
Door Size + 2-1/2”
10
Q
Header
A
Door size + 5-1/2”
11
Q
Run
A
Half of the Span
12
Q
Gable Height
A
Rise x Run \ 12
13
Q
Common Rafter
A
(Run + O.H.) x Factor
14
Q
Roof Area
A
(L + O.H.) x (W + O.H.) x Factor
