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Shrinkage / Swelling Table

Painting / Finishing Table

Standard Lumber Abbreviations

Moisture Content Table

Painting / Finishing Table

Machining Table

Characteristics of woods for painting and finishing (omissions in the table indicate inadequate data for classification)

SOFTWOODS

 

Weathering

Appearance

Wood

Ease of keeping well painted; I-easiest, V-most exacting *

Resistance to cupping; 1-best, 4-worst

Conspicuous ness of checking: 1-least, 2-most

Color of heartwood (sapwood is always light)

Degree of figure on flat-grained surface

Cedar, Alaska

I

1

1

Yellow

Faint

Cedar, California incense

I

   

Brown

Do.

Cedar, Port-Orford

I

 

1

Cream

Do.

Cedar, Western redcedar

I

1

1

Brown

Distinct

Cedar, White

I

1

 

Light brown

Do.

Cypress

I

1

1

do

Strong

Redwood

I

1

1

Dark brown

Distinct

Products ** overlaid with resin treated paper

I

 

1

   

Pine, Eastern White

II

2

2

Cream

Faint

Pine, Sugar

II

2

2

do

Do.

Pine, Western white

II

2

2

do

Do.

Pine, Ponderosa

III

2

2

do

Distinct

Fir, commercial white

III

2

2

White

Faint

Hemlock

III

2

2

Pale brown

Do.

Spruce

III

2

2

White

Do.

Douglas-fir (lumber and plywood)

IV

2

2

Pale red

Strong

Larch

IV

2

2

Brown

Do.

Lauan (plywood)

IV

2

2

do

Faint

Pine, Norway

IV

2

2

Light brown

Distinct

Pine, Southern (lumber and plywood)

IV

2

2

do

Strong

Tamarack

IV

2

2

Brown

Do.

HARDWOODS

 

Weathering

Appearance

Wood

Ease of keeping well painted; I-easiest, V-most exacting *

Resistance to cupping; 1-best, 4-worst

Conspicuous ness of checking: 1-least, 2-most

Color of heartwood (sapwood is always light)

Degree of figure on flat-grained surface

Alder

III

   

Pale brown

Faint

Aspen

III

2

1

do

Do.

Basswood

III

2

2

Cream

Do.

Cottonwood

III

4

2

White

Do.

Magnolia

III

2

 

Pale brown

Do.

Yellow-poplar

III

2

1

do

Do.

Beech

IV

4

2

do

Do.

Birch

IV

4

2

Light brown

Do.

Gum

IV

4

2

Brown

Do.

Maple

IV

4

2

Light brown

Do.

Sycamore

IV

   

Pale brown

Do.

Ash

V or III

4

2

Light brown

Distinct

Butternut

V or III

   

do

Faint

Cherry

V or III

   

Brown

Do.

Chestnut

V or III

3

2

Light brown

Distinct

Walnut

V or III

3

2

Dark brown

Do.

Elm

V or IV

4

2

Brown

Do.

Hickory

V or IV

4

2

Light brown

Do.

Oak, white

V or IV

4

2

Brown

Do.

Oak, Red

V or IV

4

2

do

Do.

* Woods ranked in group V for ease of keeping well painted are hardwoods with large pores that need filling with wood filler for durable painting.  When so filled before painting, the second classification recorded in the table applies.

** Plywood, lumber, and fiberboard with overlay or low density surface.

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