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Flashcards in Construction Deck (58)
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1

T/F: Platform construction is the most common

True

2

T/F: First floor joists are completely covered with subflooring

True

3

What are the categories of Lumber

Hardwood Softwood Bamboo Palm

4

What are the grades of lumber

Yard Structural Factory/Shop

5

How is lumber dried

air or kiln drying

6

What are the 3 categories of yard lumber

Finished (Graded A-D) Common Boards (Graded 1-5) Common dimensions (graded 1-3)

7

Structural lumber is graded on what?

Density, strength, stiffness

8

What are the size ranges of plywood

1/8" - 1"

9

What are the standard dimensions of plywood

4'x8'

10

Board Feet of Lumber (BF) = ?

Thickness X Width x Length x Number of pieces / 12 or 144 *Use 12 when Length is in feet *Use 144 when Length is in inches

11

Board Measurement (BM) = ?

BF x 1.1 for 2" or thicker thickness wood BF x 1.2 for 1" or less thickness wood

12

Framing in a word problem means you are using 2" thickness wood (for BM)

This is true, just a fact for you to remember

13

Number of sheets of plywood = ?

Area to be covered in square feet divided by 32 square feet

14

What size nail do you use for framing

16 penny

15

What size nail do you use for sheathing

8 penny

16

What spacing must you have between nails in sheathing

4-6"

17

What size nail do you use on gusset

6 penny

18

What term refers to nail size

penny (or d)

19

What are two ways to connect wood

joints and splice

20

What are two types of joints

Butt Lap

21

What is a splice

a connection of two or more boards that continue in a straight line

22

What are the four types of nails

Common Wire Finishing Scaffolding Roofing

23

What are the size ranges of nails

2d thru 60d

24

How deep should nails penetrate

penetrate at least 2/3 into the second board

25

What is the nail formula

● Framing or 10d to 60d -Pounds(p) = (d/6)*(BM/100) ● Sheathing use 2d to 8d(or material up to 1”) -Pounds(p) = (d/4)*(BM/100)

26

What is design life

how long the building is intended to stand without major repairs done to it

27

What are the three ranges of design life

Permanent (25+yrs) Semi- Permanent (5-25yrs) Temporary (0-5yrs)

28

What are the components of the substructure

Footer, girder, joist, subfloor

29

What is the maximum distance wood footers would be placed apart

10'

30

How are girders made

Three laminated pieces lumber running the length of the building