Wood Construction 1 Flashcards
If we cut a cross section through a tee trunk, we will see a number of rings. The most appropriate term for these rings is?
growth rings
The terms spwood and heartwood refer to
two different parts fo the same tree
The difference between softwoods and hardwoods is based on the?
density of wood
Which of the following species of wood is not a softwood?
Oak
In a 2x6 stud, the wood grain is parallel to the
vertical direction
Wood is
stronger along the grain than across the grain
Flat-sawn lumber is dimensionally more stable than quarter-sawn lumber.
False
The weight of a piece of lumber is 2lb. The weight of the same piece after it is fully dries is 1.8 lb. What was the original moisture content in the wood?
11%
Fungal decay in wood occurs when the moisture content in wood is
greater than or equal to 20%
The moisture content in a piece of lumber has been measured to be 15%. According to the wood industry, this piece of lumber will be classified as
dry
The term S-dry implies that the lumber has been
surfaced when its moisture content was 19%
A retailter of building materials purchased 1,000 pieced of 2x12 lumber, each 10ft long. How many board feet did the retailer purchase?
20,000BD ft
Which of the following is not a lumber grade?
No. 4
Lumber used for structual framing members, such as studs, floor joists, and rafters, is graded using?
only machine grading
A termite shield is generally made of?
galvanized sheet steel