Name Sitka Spruce
Location Western North America
Texture/Grain Medium/N/A
Specific Gravity 0.40
Hardness Very Soft
Strength Medium
T/R Stability 7.5/4.3%

 

Guide

Woodworking
Know-How

Wood &
Woodworking
Materials

 Up     

Hardwoods
& Softwoods

(You are here.)

1. Wood Botany

2. Mechanical
Properties

3. Physical
Properties

4. Health Hazards

5. Comparing &
Choosing Woods

6. Hardwoods &
Softwoods Resources

        

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here are hundreds of wood species available from worldwide sources, each with unique characteristics that affect every aspect of your work. Wood varies not just in color and grain pattern, but also strength, weight, compatibility with adhesives and finishes, and the ease with which it can be worked with various types of tools. It you are a maker of Windsor chairs, there are some properties that make certain woods easier to bend than others. If you are a luthier – a maker of musical instruments –some species conduct sound or produce more pleasing tones. If you build boats, certain species will fair better when in constant contact with the water. To choose the best wood for a project, you must understand the attributes and properties of the available species.

Your most common choice is a botanical distinction. Commercial lumber is commonly divided up into two broad categories,  hardwoods and softwoods. This has little to do with their relative hardness, although as a group, hardwoods rank harder than softwoods. Rather, it denotes a difference between lumber sawn from trees with encased seeds and leaves versus those with cones and needles. 

For a woodworker in North America, there are actually three types of woods — domestic  hardwoods, domestic softwoods, and imported woods or “exotics.” Most imports are hardwoods, but we have come to think of them as a class by themselves. However you wish to divide them up, there are over 250 types of lumber commercially available in the United States and perhaps as many as 1,000 worldwide. Even if you work with just a few species that are available locally, it’s useful and exciting to know about the incredible variety of available globally.

Contents
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1.Wood Botany
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Angiosperms and Gymnosperms

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Microscopic Attributes

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Chemical Attributes

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2. Mechanical Properties
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Specific Gravity

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Strength

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Movement and Stability

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Working Characteristics

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Common Uses

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Mechanical Properties of North American Hardwoods (chart)

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Mechanical Properties of North American Softwoods (chart)

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Mechanical Properties of World Woods (chart)

 
This jewelry chest is not just an example of fine craftsmanship. It's also an eye-popping demonstration of how wood species can be combined to produce a stunning visual effect.

Specs: 21" high, 18" wide, 10" deep.
Materials: Curly Cherry, Walnut Burl, Lacewood.
Craftsman: Jim McCann, Clayton, Ohio.
 

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3. Physical Properties
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Wood Color

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Wood Texture

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Wood Grain

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Grain Pattern

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Wood Weight

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Physical Properties of North American Hardwoods (chart)

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Physical Properties of North American Softwoods (chart)

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Physical Properties of World Woods (chart)

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4. Health Hazards from Woods
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Wood-Related Ailments

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Irritants and Sensitizers

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Limiting Exposure

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Toxic Woods and How They Affect You (Chart)

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5. Choosing Woods

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6. Hardwoods & Softwoods Resources

 

 

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 "Abundant to all the needs of man, how poor the world would be without wood."
Eric Sloane in Reverence for Wood

 

Wood and Woodworking Materials/Hardwoods and Softwoods
part of the Workshop Companion,
essential information about wood, woodwork, and woodworking.
By Nick Engler.

Copyright © 2009 Bookworks, Inc.