Podcast
Questions and Answers
What is the term used to describe splits near the centre of a trunk that may indicate decay?
What is the term used to describe splits near the centre of a trunk that may indicate decay?
- Warping
- Fissures
- Heart Shakes (correct)
- Sloping grain
Which defect is characterized by insufficient wood at a corner or along an edge of a plank or board?
Which defect is characterized by insufficient wood at a corner or along an edge of a plank or board?
- Knots
- Resin or bark pockets
- Intergrown Knots
- Wane (correct)
In timber, when does warping (distortion) occur?
In timber, when does warping (distortion) occur?
- When resin pockets are present
- When intergrown knots form
- Due to insufficient density in early wood growth
- During seasoning process (correct)
What do Live Knots represent in timber?
What do Live Knots represent in timber?
What is the term for long, narrow openings or lines of breakage made by cracking or splitting in timber?
What is the term for long, narrow openings or lines of breakage made by cracking or splitting in timber?
In softwood, what are defects that consist of openings in the grain containing pitch or resin?
In softwood, what are defects that consist of openings in the grain containing pitch or resin?
What type of defect in timber is characterized by splits near the centre of the trunk, potentially indicating decay?
What type of defect in timber is characterized by splits near the centre of the trunk, potentially indicating decay?
When branches grow and are enclosed within the trunk, what type of knots are formed in timber that are firmly connected to the surrounding wood and difficult to drop?
When branches grow and are enclosed within the trunk, what type of knots are formed in timber that are firmly connected to the surrounding wood and difficult to drop?
Which type of defect in softwood consists of openings in the grain that contain pitch or resin?
Which type of defect in softwood consists of openings in the grain that contain pitch or resin?
What characteristic of timber indicates insufficient wood at a corner or along an edge of a plank or board?
What characteristic of timber indicates insufficient wood at a corner or along an edge of a plank or board?
When timber shrinks along the growth line, what type of distortion defect occurs?
When timber shrinks along the growth line, what type of distortion defect occurs?
What type of knots are formed in timber when a branch drops off and is overgrown by new wood, making them easy to drop?
What type of knots are formed in timber when a branch drops off and is overgrown by new wood, making them easy to drop?
Flashcards
Heart Shakes
Heart Shakes
Splits near the center of a tree trunk, often indicating decay.
Wane
Wane
Insufficient wood at a corner or edge of a plank or board.
Warping
Warping
Distortion in timber during drying (seasoning).
Live Knots
Live Knots
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Fissures
Fissures
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Resin Pockets
Resin Pockets
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Resin/bark pockets
Resin/bark pockets
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Dead Knots
Dead Knots
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Live knot characteristics
Live knot characteristics
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Timber Defects
Timber Defects
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Seasoning Defects
Seasoning Defects
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Timber Quality
Timber Quality
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Study Notes
Heart Shakes
- Splits near the centre of a trunk
- May indicate decay
Wane
- Insufficient wood at a corner or along an edge of a plank or board
Warping
- Occurs when timber shrinks along the growth line, and there is a difference in shrinkage between the centre of the wood and the edges
Live Knots
- Live knots represent branches that grew and are enclosed within the trunk
- Firmly connected to surrounding wood
- Difficult to drop
Checks
- Long, narrow openings
- Lines of breakage made by cracking or splitting in timber
Pitch Pockets
- Openings in the grain of softwood, containing pitch or resin
Heart Shakes
- Splits near the centre of a trunk
- May indicate decay
Live Knots
- Branches grow and are enclosed within the trunk
- Firmly connected to the surrounding wood
- Difficult to drop
Pitch Pockets
- Openings in the grain of softwood, containing pitch or resin
Wane
- Insufficient wood at a corner or along an edge of a plank or board
Cup
- Timber shrinks along the growth line, and there is a difference in shrinkage between the centre of the wood and the edges
Dead Knots
- Branches drop off and are overgrown by new wood
- Easy to drop
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Description
Test your knowledge on identifying common wood defects such as sloping grain, heart shakes, wane, fissures, resin pockets, and more. Learn to recognize these issues to better assess wood quality and usability.
