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Pacific madronePacific madronePacific madronePacific madronePacific madronePacific madrone
Pacific madrone (Arbutus menziesii)

Family:

Common names: Arbuti tree, Coast madrone, Madrona, Madrone, Madrono, Pacific madrone

Distributed in: Canada, United States (North America)

Distribution overview: Pacific madrone occupies coastal lowlands from Vancouver Island, British Columbia, southward to the Coast Ranges of southern California and occurs in isolated groves as far south as Mexico.Pacific madrone is particularly common west of the Cascades in Washington and Oregon.Along the western slope of the Sierra Nevada, Pacific madrone has a scattered distribution, extending southward to central California.

Common uses: Core Stock, Decorative veneer, Flooring, Fuelwood, Furniture , Furniture components, Interior construction, Paneling , Plywood, Turnery, Veneer

Product sources: A few of the species in the genus are reported to produce timber of commercial value. Among them are three species which grow in India, and A. lanceifolius from the Malay-Peninsula which is the source of the timber marketed as Keledang.

Environment profile: Status has not been officially assessed

Tree size: Tree height is 20-30 m

Colors: the heart isReddish brown, Whiteand the sapwoodWhite, Whitish or cream colored with a pinkish cast .The grain isStraight, the textureUniform

Natural durability: Negligible natural resistance to decay , Perishable

Odor: No specific smell or taste

Drying Defects: Tension wood can cause uneven shrinkage , Warps and checks easily

Ease of Drying: Very difficult to dry due to tendency to collapse

Blunting Effect: Moderate blunting effect on cutting edges

Boring: Good boring qualitites

Cutting Resistance: Slow feeding rates recommended due to high density

Gluing: Glued joints hold well

Moulding: Material responds well to moulding operations

Movement in Service: Material responds well to moulding operations

Nailing: Fair to Good , Good nail holding properties

Planing: Worked surfaces are realtively clean

Resistance to Impregnation: Sapwood is treatable

Response to hand tools: Responds well to hand tools

Sanding: Produces smooth surfaces

Veneering qualities: Sliced into very decorative veneers that are suitable for paneling, cabinets and furniture , Suitable for slicing

Steam bending: Moderate steam bending characteristics

Screwing: Fair to Good Results, Holds screws well ; Turning: Surface scratching is an occasional problem

Polishing: Very Good to Excellent; Staining: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,57
Density 705 kg/m3
Bending Strength 716 kg/cm2
Crushing Strength 111 kg/cm2
Hardness 649 kg
Impact Strength 58 cm
Shearing Strength 124 kg/cm2
Stiffness 84 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 5 %
Weight 913 689 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 10192 psi
Crushing Strength 1588 psi
Density 44 lbs/ft3
Hardness 1431 lbs
Impact Strength 23 inches
Shearing Strength 1774 psi
Stiffness 1205 1000 psi
Specific Gravity 0.57
Weight 57 43 lbs/ft3
Radial Shrinkage 5 %
Tangential Shrinkage 12 %

Moderate stifness
Moderate shock resistance
Crushing strength = high
Bending strength (MOR) = high
Pacific madrone is described as a compact and tough timber The wood is one of the best sources of charcoal for gunpowder

Dost, W.A. and C. Maxey. 1964. Gluing Characteristics of Some California Hardwoods:Black oak, Chinkapin, Madrone and Tanoak. California Forestry and Forest Products, No. 36. California.Kline, M. 1984. Arbutus menziesii - Pacific madrone. In A Guide to Useful Woods of the World, Flynn Jr., J.H., Editor. King Philip Publishing Co., Portland, Maine. 1994. Page 48.Laidlaw, W.B.R.1960. Guide to British Hardwoods.Published by Leonard Hill [Books] Limited, 9 Eden Street, N.W.1, London.Lincoln, W.A. 1986. World Woods in Color. Linden Publishing Co. Inc., Fresno, California.Little, E.L. 1980. The Audobon Society Field Guide to North American Trees - Western Region. Published by Alfred A. Knopf, New York.Niemiec, S.S., G.A. Ahrens, S. Willits, and D.E. Hibbs. March, 1995. Hardwoods of the Pacific Northwest. Oregon State University, College of Forestry,Research Contribution 8, Forest Research Laboratory, Department of Forest Products, Corvallis, Oregon.Overholser, J.L. 1977. Oregon Hardwood Timber, Forest Research Laboratory, Research Bulletin No. 16, Oregon.
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