Growth
Milling
Shrinkage
Grading
Joints
100
One of the most common building materials used in construction, this material is strong, flexible, lightweight and easily shaped.
What is wood?
100
This process uses multiple blades to cut timber into lumber in one pass.
What is gang sawing?
100
There is an accepted maximum moisture content for framing lumber.
What is 19%
100
S-P-F
What is the abbreviation for Spruce-Pine-Fir
100
Considered the ultimate in woodworking joints.
What is a dovetail joint?
200
The soft tissue around which the first growth of wood takes place.
What is the central pith?
200
This method of cutting lumber is also known as the plain-sawn or slash-cut method.
What is the flat-sawn method?
200
This is in the cell cavities.
What is freewater?
200
Splits, checks, cupping and twisting are examples of a type of flaw which affects the grading of lumber
What is a seasoning flaw?
200
Recommended for internal-corner baseboard joints to minimize effects of shrinkage on appearance.
What is a coped joint?
300
This layer adds growth to circumference of the tree each year.
What is the cambium layer?
300
The appearance of lumber sawn in this manner is known as vertical grain or edge grain.
What is quarter sawing?
300
When the cell walls are saturated but there is no water left in the cell cavities.
What is the fibre saturation point?
300
Lengthwise separation of wood along the annual rings that develops in the standing tree.
What is shake?
300
These oval shaped joints have nearly replaced the use of dadoes.
What is a biscuit joint?
400
These cells radiate outward from the pith, storing and transporting food throughout the tree.
What is a medullary ray?
400
In addition to rough and surfaced lumber there is a third milling classification.
What is worked lumber?
400
This might form along the length of a tree if shrinkage or swelling happens rapidly.
What is a check?
400
Depressions at the end or middle of a board caused by misalignment of the infeed and outfeed tables on the thickness planer.
What is machine bite?
400
End cuts that provide more gluing area to join the ends of two lengths of moulding to form one continuous piece.
What is a scarf joint?
500
Wood cells are cemented together with this material.
What is lignin?
500
Besides shiplapped lumber and patterned lumber there is a third example of worked lumber.
What is matched lumber?
500
This type of shrinkage is across the annual rings?
What is radial shrinkage?
500
Lumber that is 4 1/2" in its smallest dimension.
What is timber?
500
Splits, checks, cupping and twisting.
What is seasoning flaws caused by drying.
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