Term
|
Definition
| shrinkage distortion of a plane surface, includes---bow, crook, cup and twist. |
|
|
Term
|
Definition
| (manufacturing)lack of wood on the edge or corner. |
|
|
Term
|
Definition
| (manufacturing)lengthwise separation of wood extending from one face to another. |
|
|
Term
|
Definition
| (manufacturing) lengthwise grain separation caused by seasoning. |
|
|
Term
|
Definition
| (natural) opening between growth rings and containing resin. |
|
|
Term
|
Definition
| (natural) pitted area sometimes found in cedar and cypress. |
|
|
Term
|
Definition
| (natural) branch embedded in a tree and cut through manufacturing. |
|
|
Term
| Characteristics of plain-sawed lumber include: |
|
Definition
Distinct grain pattern,
May twist, cup, or wear unevenly,
Tends to have a raised grain,
Shrinks and swells more in width, less in thickness,
Less waste in cutting, and therefore less expensive |
|
|
Term
| Characteristics of Quarter-sawed lumber include: |
|
Definition
Relatively even grain pattern,
Wears evenly with less warpage,
Shrinks and swells more in thickness, less in width,
More waste in cutting and therefore more costly. |
|
|
Term
| Lumber is classified as _____if the grain is 45 degrees to 90 degrees to the wide face and ____ if the grain is 0 degrees to 45 degrees to the wide face. |
|
Definition
| quarter-sawed, plain-sawed |
|
|
Term
|
Definition
| 1) reduces the lumber’s weight, 2) increases its resistance to fungi attack and decay, 3) increases its strength. |
|
|
Term
| To be grademarked “kiln-dry,” its moisture content cannot exceed ___% . |
|
Definition
|
|
Term
| For wood to be considered dry lumber, its moisture content cannot exceed __% . |
|
Definition
|
|
Term
| Wood is generally stronger in ___than ______. Unlike other materials, the strength of wood is not the same in every direction: for tension and compression. |
|
Definition
|
|
Term
|
Definition
| such as maple, oak, and sycamore, come from broad-leaved deciduous trees, which shed their leaves annually. |
|
|
Term
|
Definition
| such as pine, fir, and spruce, come from needle-leaved conifers, which are evergreen |
|
|
Term
|
Definition
| is the hard fibrous substance lying beneath the bark of trees. |
|
|
Term
|
Definition
| is wood that has been sawn into construction members. |
|
|
Term
|
Definition
| is lumber that is five inches or larger in its least dimension. |
|
|
Term
|
Definition
| Natural, renewable and plentiful material Relatively low in cost Easy to shape and assemble Good thermal insulating qualities |
|
|
Term
|
Definition
| is an important variable because it affects the amount of shrinkage, weight and strength of the lumber, as well as the withdrawal resistance of nails. |
|
|
Term
| Plywood is classified as _____ or ______depending on the type of adhesive used. |
|
Definition
|
|
Term
| Plywood used for interior millwork or cabinetry is usually ____. |
|
Definition
|
|
Term
| Plywood used in construction is primarily ___. |
|
Definition
|
|
Term
| ____ slicing is the most economical. method |
|
Definition
|
|
Term
| ___ slicing creates the most uniform grain pattern |
|
Definition
|
|
Term
|
Definition
| (beveled at 45-degrees) to eliminate the thin corners of wood that catches fire most easily, but codes no longer require this |
|
|
Term
| Heavy timber construction attains _______ through the use of large members |
|
Definition
|
|
Term
|
Definition
Used for wood to steel connections and
wood to wood connections. |
|
|
Term
|
Definition
| Typically used for wood to wood lapped joints. The ring helps to develop shear and slippage resistance in the connection. Circular grooves are cut into the wood members to be joined and half of the steel ring is embedded into each groove. The members are held together with a bolt. |
|
|
Term
| What is the typical moisture content for hardwoods? |
|
Definition
|
|
Term
| Who is a major purchaser of their material? |
|
Definition
|
|
Term
| What is used as an alternate source/product for drying? |
|
Definition
| WOOD CHIPS (+Burner +Steam = Lumber) |
|
|
Term
| the typical floor framing |
|
Definition
|
|
Term
| When diagramming floor plans; Add ____ _____and _____ around stairs, chimneys/fireplaces, and other floor openings. |
|
Definition
| double headers , trimmers |
|
|
