SOC T/O

Question 1

Formula for Board Feet

Answer 1

board thickness x width x Length ÷ 12 (for ft)

÷144 (for in)

Question 2

Formula for Board Measure

Answer 2

BF x 1.1 (2”+)
x1.2 (1”-)

*no waste factor for sheathing unless specified

Question 3

Formula for Nails, framing

Answer 3

(1.66)×(BM÷100)= POUNDS of nails

Question 4

Formula for Nails, sheathing

Answer 4

2 × (BM/100)= POUNDS of nails.

Question 5

Formula for Stairs (7.5/11)

Answer 5

HT ÷ 7.5 =X (round up/down)
HT ÷ X = Y (solve to /16th”)

X= number of treads 
Y= Rise

Question 6

Total Rafter Length Formula

Answer 6

halfspan+projection=new halfspan
(new halfspan x Run) ÷12 = Rise
halfspan^ + Rise^ = X Square root
solve to 16th”

Question 7

Rafter Length Formula

Answer 7

(halfspan x pitch) ÷12 = Rise
halfspan^ + rise^ = X Square root
solve to 16th”

Question 8

Number of Rafters formula

Answer 8

Building length ÷ 1.33= X (round up) + 1

Question 9

Number of Trusses formula

Answer 9

Building length ÷ 2 = X (round up) +1

Question 10

Roof Sheathing formula

Answer 10

Length+ (projection x2)= Total Building Length

[(Total Roof Length + TBL)÷ 32] x 2

Question 11

Gable Formula

Answer 11

(Base x Height) ÷ 2 =area of triangle

Question 12

Floor Sheathing formula

Answer 12

(Length x Width)÷32 =X (round up) ×2= pieces

*no waste factor for plywood

Question 13

Board Measure for Sheathing

Answer 13

of pieces × 32 (sqft) = BM

Question 14

What is the actual size of a 2x4

Answer 14

1.5 x 3.5

Question 15

What’s the nominal size of sheathing

Answer 15

1”

Question 16

What are the types of wood?

Answer 16

Hard, soft, bamboo, palm

Question 17

What grade of lumber is most common ?

Answer 17

2-4

Question 18

What is the design life for TO construction?

Answer 18

Temporary, up to 5 years

Question 19

Describe Temporary design life

Answer 19

minimum safety standards, houses “facilities”, bare essentials, simple design, local material, unskilled labor

Question 20

What are the types and time frames of Design life

Answer 20

permanent- 25 years +
semi-permanent- 5-25 years
Temporary- up to 5 years

Question 21

What is platform framing?

Answer 21

studs go up 1 story at a time, each floor is supported by the one below