Grizzly G0689 owner manual Wood Types

Wood Types

The species of wood, as well as its condition, has a dramatic effect on the depth-of-cut the planer can effectively take with each pass. A greater shear strength indicates a harder wood. A shal- lower cut should be used with harder woods.

Commonly used hardwoods and their associated shear strengths are illustrated in Figure 19.

	Type	Shear (PSI)
	Black Locust		2,480
	Sugar Maple		2,330
Increasing Difficulty	Pecan Hickory		2,080
	American Elm		1,510
	White Oak		2,000
	White Ash		1,950
	Black Cherry		1,700
	Black Walnut		1,370
	Red Alder		1,080
	Basswood		980
	Cottonwood		930

Figure 19. Common hardwood shear strengths.

Similarly, common softwood shear strengths are displayed in Figure 20.

	Type	Shear (PSI)
	Western Larch		1,410
	Tamarack		1,280
Increasing Difficulty	Douglas Fir		1,160
	Cypress		1,000
	Alaska Cedar		1,130
	Sitka Spruce		1,150
	Sugar Pine		1,050
	Redwood (OG)		940
	Red Cedar		860
	White Pine		850
	Balsam Fir		710

Figure 20. Common softwood shear strengths.

-20- G0689 13" Planer