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Questions and Answers
What is one of the main advantages of using wood as a construction material?
What is one of the main advantages of using wood as a construction material?
Which type of wood comes from needle-leaved, cone-bearing trees?
Which type of wood comes from needle-leaved, cone-bearing trees?
What does 'S4S' stand for in lumber processing?
What does 'S4S' stand for in lumber processing?
Which of the following is NOT classified as a defect in wood?
Which of the following is NOT classified as a defect in wood?
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What is the definition of a 'board foot' in measuring wood?
What is the definition of a 'board foot' in measuring wood?
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Which type of lumber has at least one smooth side?
Which type of lumber has at least one smooth side?
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What property describes wood as having an artistic and natural beauty?
What property describes wood as having an artistic and natural beauty?
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Which classification of wood comes from deciduous or broad-leaf trees?
Which classification of wood comes from deciduous or broad-leaf trees?
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What is the total board foot of lumber for 40 pieces of 2 in. x 4 in. x 10 ft lumber?
What is the total board foot of lumber for 40 pieces of 2 in. x 4 in. x 10 ft lumber?
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What would be the cost of 1,841.06 bd-ft of lumber if the price per board foot is P30.00?
What would be the cost of 1,841.06 bd-ft of lumber if the price per board foot is P30.00?
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If each board foot of lumber is priced at P30.00, how many board feet would 120 pieces of 1 in. x 2 in. x 12 ft lumber yield?
If each board foot of lumber is priced at P30.00, how many board feet would 120 pieces of 1 in. x 2 in. x 12 ft lumber yield?
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How is the board foot calculated for 1 in. x 1 ft x 10 ft lumber?
How is the board foot calculated for 1 in. x 1 ft x 10 ft lumber?
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What is the final total board feet count combining pieces A, B, C, and D?
What is the final total board feet count combining pieces A, B, C, and D?
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What is the formula to compute the board feet for lumber given dimensions?
What is the formula to compute the board feet for lumber given dimensions?
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What is the total board foot representation for 500 pieces of 2 in. x 2 in. x 8 ft lumber?
What is the total board foot representation for 500 pieces of 2 in. x 2 in. x 8 ft lumber?
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If thickness of veneer and plywood varies from 1/8 in to 3/4 in, what is the highest thickness available?
If thickness of veneer and plywood varies from 1/8 in to 3/4 in, what is the highest thickness available?
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Study Notes
Introduction to Wood
- Wood is a common construction material
- Classifying, selecting, and using wood correctly is challenging due to variations in species and growth/seasoning defects
Advantages of Wood
- Strong in proportion to its weight
- Easily worked and shaped
- Excellent thermal insulator
- Abundant and renewable resource
- Does not degrade if properly handled
Wood Properties
- Strong and durable
- Lightweight
- Easy to work and fasten
- Aesthetically pleasing
Classifications of Wood
- Softwood: comes from cone-bearing needle-leaved trees
- Hardwood: comes from broad-leaved deciduous trees
Wood Structure
- Sapwood: the lighter colored outer layer of the wood
- Heartwood: the darker colored inner layer of the wood
- Bark: the protective outer covering of the tree
Wood Defects
- Compression wood
- Decay
- Pitch pocket
- Shake
- Mineral streaks
- Mold and staining fungi
- Knots
- Cross grain
Wood Processing
- The process of transforming raw logs into usable lumber
Wood Surfaces
- Face: the primary surface of a piece of lumber
- Edge: the side of a board
- End: the cut edge of a piece of lumber
Lumber
- Lumber: term for wood after sawing/slicing into boards, planks, sticks for commercial purposes
Some Definitions
- Surfaced/dressed lumber: planed lumber with at least one smooth side
- S2S (two-sided) surfaced lumber: has smooth surfaces on two sides
- S4S (four-sided) surfaced lumber: has smooth surfaces on all four sides
- Rough lumber: unplaned lumber
Lumber Dimensions
- Timber: pieces of lumber five inches or more in their smallest dimension
- Plank: wide pieces of lumber; 2-5 inches thick
- Board: pieces of lumber under 1.5 inches thick; at least 4 inches wide
- Flitch: thick pieces of lumber
- Slab: roughly cut lumber; surfaces tangent to wood rings of the log
Measuring Wood
- Board foot (bd-ft): a unit of measure representing one square foot of wood, one inch thick (144 cubic inches)
- Formula for calculating board feet: (Thickness in inches x Width in inches x Length in feet) / 12
Examples of Calculations
- Various example calculations demonstrating how to determine total cost of lumber, given different quantities, prices, and sizes of lumber.
Lumber & Related Products
- Veneer: thin sheets of wood
- Plywood: wood made up of layers of veneer
- Hardwood: a pressed wood manufactured from wood chips
Particle Board
- A manufactured wood product made from wood chips, etc. pressed into sheets.
Samples of Hardboard
- Images of various types of hardboard products
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Description
Explore the essential properties, classifications, and advantages of wood as a construction material. This quiz covers everything from wood's structure and defects to its processing. Perfect for those looking to deepen their understanding of wood in various applications.
