I5 - LT #4 Flashcards
What type of sawing produces lumber that produces the least shrinkage across the face of the board?
Rift saw & Edge Grain.
What is the appearance of the annular growth rings on the face of a board with flat grain?
Mountains & Cathedrals
What is the minimum width of a board to be considered for the select grade?
4”
How are very large moldings made?
Flat boards
What type of exterior casing molding is used around doors & windows?
Brick mould
What is the purpose of a base shoe?
Covers joint between base & flooring
Where should plaster-cast moldings be stored at the job site?
Where there’s no traffic.
Why should materials be lifted instead of solid from one place to another?
Sliding materials across surfaces cause scratches.
What type of blade is used to cut materials prone to chipping?
Negative hook
Moisture content of finish lumber should be what humidity?
Ambient humidity of the building
Dry hardwoods to a moisture content of less than:
10%
Edge grain board -
Angle between the annular growth rings and the face of board is greater than 45 degrees
Flat grain -
The grain pattern on the face of the board appears as irregular lines that form mountains or cathedrals.
Flat grain lumber will shrink more across:
Width
Flat or plain sawn lumber:
Simplest way to cut log into boards is to cut boards through the full width of the log.
Most of the boards produced by plain-sawing:
Flat grain
Cutting the log into quarters first and then cutting each quarter into boards that are all edge grain:
quarter-Sawn
Rift-sawn lumber:
Boards are cut to produce grain perpendicular to the face.
Requires boards to be cut with their width radial to the log.
Rift-sawn is rare and expensive to produce because of:
Amount of waste
Moldings are used to cover the gap left:
By joining in between the wall, ceiling, and floor surfaces.
Crown moldings may be as small as:
1/2 x 1/2 to as wide as 8”
Ogee shape consists of:
Two circular curves connected together.
What is the traditional material for crown molding?
Hemlock due to its uniform color.
Thin wood paneling is best cut using:
Fine-toothed carbide-tipped blade.
How are raised panels installed?
Fitted into stiles & rails made from solid wood.
