Wood

Question 1

What are some desirable qualities of wood?

Answer 1

Strong & Stiff
Fastened quickly & economically
Recyclable
Biodegradable
Light
Easily worked / shaped

Question 2

What are the undesirable qualities of wood?

Answer 2

Not perfectly straight
Size & shape affected by moisture
Growth defects
can split & warp
Combustible
Susceptible to pests

Question 3

List construction uses of wood

Answer 3

Structural framing
Subfloors and roof sheathing
Siding - Structural & exposed
Finish cabinetry

Question 4

Is wood useful in compressive or tensile strength?

Answer 4

both

Question 5

True or false: Strength of wood varies significantly with direction of grain, species, and presence of knots or other defects.

Answer 5

True

Question 6

Advantages of wood construction

Answer 6

Durable when protected from fire
High strength to weight ratio
renewable, reusable
low cost
simple construction

Question 7

What are the two main factors that affect the properties of wood?

Answer 7

Type of species
Amount of moisture content

Question 8

Softwoods are:

Answer 8

Fast-growing,
plentiful,
relatively inexpensive
Generally soft

Question 9

Hardwoods are:

Answer 9

Slower growing
more expensive
denser

Question 10

What are the most common 4 wood types?

Answer 10

Pine
Walnut
Spruce
Oak

Question 11

Definition of lumber:

Answer 11

Wood products directly derived from logs through sawing

Question 12

State the 4 steps of wood processing:

Answer 12

Saw
Season
Surface
Grade

Question 13

What are the two types of sawing?

Answer 13

Plainsawn
Quartersawn

Question 14

What are some plainsawn facts?

Answer 14

Broader grain pattern on wide face
greater distortion during drying
cheaper to saw

Question 15

What are some quartersawn facts?

Answer 15

More narrow spaced grain pattern on wide face
Less distortion during drying
More even surface erosion
More costly to saw