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Atlantic white cedar
Atlantic white cedar (Chamaecyparis thyoides)

Family: Cupressaceae

Common names: Atlantic white cedar, Chilopsis, Desert willow, False cypress, Southern white cedar, Swamp cedar, White cedar

Distributed in: United States (North America)

Distribution overview: Atlantic white-cedar grows in a narrow belt along the Atlantic and Gulf coasts from southern Maine to northern Florida westward to southern Mississippi.It occurs no farther than 50 to 130 miles (80-210 km) inland.Vast stands occur in the Great Dismal Swamp of Virginia and eastern North Carolina.Small isolated stands are more typical in much of New Jersey, Georgia, and eastern Florida, but stands are infrequent in Delaware and Maryland.The species is uncommon in South Carolina but becomes more frequent in the Florida Panhandle and in southern Alabama.At the western edge of its range in southern Mississippi, Atlantic white-cedar grow in scattered relict stands. The tree prefers wet, peaty, acid soils and forms pure stands in swamp forests.

Common uses: Boards, Boat building, Boxes and crates, Canoes, Casks, Dressed boards, Exterior trim & siding, Exterior uses, Foundation posts, Lifeboats, Lumber, Packing cases, Poles, Posts, Rough boards/dimension stock, Shingles, Shipbuilding, Stakes, Utility poles

Environment profile: Widespread

Tree size: Tree height is 30-40 m

Colors: the heart isPurple, Redand the sapwood The narrow sapwood is whitish .The grain isStraight, the textureTypically fine and the lusterLow

Natural durability: Very high natural resistance, Very suitable for exterior applications

Odor: The wood has its own characteristic cedary odor and a slight bitter, spicy taste

Kiln Schedules: 12 - A4 (4/4) T11 - A3 (8/4) US

Drying Defects: Internal honeycombing and/or collapse may develop in thicker stock

Ease of Drying: Dries at a moderate rate with little degrade. Care is needed when drying thicker material to avoid defects

Comments: Logs mined from swamps are still suitable for lumber after being buried for decades. The wood has been a popular source of timber for log cabins, including floors and shingles, for the pioneers in America

Blunting Effect: Blunting effect on machining is slight

Boring: The material responds rather well to boring operations

Carving: Good carving qualities

Cutting Resistance: Easy to saw

Mortising: Good mortising properties

Moulding: Good moulding properties

Movement in Service: Good moulding properties

Nailing: Good nailing qualities

Planing: Planes well, to a good finish

Resistance to Impregnation: Heartwood is resistant

Response to hand tools: Easy to machine

Routing recessing: Good in both routing and recessing.

Sanding: Good sanding finish

Steam bending: Poor

Screwing: Good screw holding properties ; Turning: Good results

Painting: Good; Polishing: Good; Staining: Good staining properties ; Varnishing: Well defined ;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,27 0,28
Density kg/m3
Bending Strength 323 468 kg/cm2
Crushing Strength 16 28 kg/cm2
Hardness 155 kg
Impact Strength 45 32 cm
Shearing Strength 55 kg/cm2
Stiffness 51 64 1000 kg/cm2
Tangential Shrinkage 5 %
Radial Shrinkage 3 %
Weight kg/m3
Maximum Load 0,28 0,42 cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 4606 6664 psi
Crushing Strength 235 402 psi
Hardness 343 lbs
Impact Strength 18 13 inches
Maximum Crushing Strength 2342 4606 psi
Shearing Strength 784 psi
Stiffness 735 911 1000 psi
Work to Maximum Load 4 6 inch-lbs/in3
Specific Gravity 0.27 0.28
Radial Shrinkage 3 %
Tangential Shrinkage 5 %
Volumetric Shrinkage 9 %

Soft
Max. crushing strength = low
Bending strength (MOR) = low

Boone, R.S., C.J. Kozlik, P.J. Bois, E.M. Wengert. 1988. Dry Kiln Schedules for Commercial Hardwoods - Temperate and Tropical. USDA, Forest Service, General Technical Report FPL-GTR-57, Forest Products Laboratory, Madison, Wisconsin.Lincoln, W.A. 1986.World Woods in Color.Linden Publishing Co. Inc.,Fresno, California.Little, E.L.1980.The Audubon Society Field Guide to North American Trees - Eastern Region.Published by Arthur A. Knopf, New York.Panshin, A.J. and C. deZeeuw. Textbook of Wood Technology. McGraw-Hill Series in Forest Resources. McGraw-Hill Book Company, New York.USDA. 1987. Wood Handbook:Wood as an Engineering Material. Agriculture Handbook No. 72. United States Department of Agriculture, Forest Service, Madison, Wisconsin.USDA. 1988. Dry Kiln Operators Manual, Preliminary Copy. Forest Service, Forest Products Laboratory, Madison, Wisconsin.WCMC.1992.Conservation Status Listing - Trees and Timbers of the World.World Conservation Monitoring Center - Plants Programme, Cambridge, CB3 ODL, United Kingdom.
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