Search for  
 
 
top

Clicking any heading in the main data area (at right) will scroll the page back to this top position.

Use the following links to jump to the associated section in the main data.

Blunting Effect
Boring
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Distribution Overview
Drying Defects
Ease of Drying
Environmental Profile
Family Name
Gluing
Grain
Heartwood Color
Kiln Schedules
Mortising
Moulding
Movement in Service
Nailing
Natural Durability
Numerical Data
Odor
Planing
Product Sources
References
Regions of Distribution
Resistance to Abrasion
Resistance to Impregnation
Response to Hand Tools
Routing & Recessing
Sanding
Sapwood Color
Scientific Name
Screwing
Staining
Steam Bending
Strength Properties
Texture
Trade Name
Tree Size
Turning
Veneering Qualities

Scientific Name
Quercus michauxii

Trade Name
Swamp chestnut oak

Family Name
Fagaceae

Wood Image 1

Common Names
Cow oak, Cucharillo, Encino, Encino negro, Mamecillo, Oak, Roble, Roble amarillo, Roble colorado, Roble encino, Roblecito, Swamp chestnut oak, White oak

Regions of Distribution
North America

Countries of Distribution  [VIEW MAP]
United States

Common Uses
Cooperages, Core Stock, Crossties, Decorative veneer, Domestic flooring, Factory flooring, Figured veneer, Flooring, Foundation posts, Fuelwood, Mine timbers, Parquet flooring, Pile-driver cushions, Piling, Plain veneer, Poles, Posts, Railroad ties, Stakes, Sub-flooring, Utility poles, Veneer

Environmental Profile
Abundant/Secure
Rank of relative endangerment based on number of occurences globally.
May be rare in some parts of its range, especially at the periphery
Demonstrably widespread, abundant, and secure globally
Data source is Nature Conservancy


Distribution Overview
This species occurs in Alabama, Arkansas, Delaware, Florida, Georgia, Indiana, Kentucky, Louisiana, Maryland, Missouri, Mississippi, New Jersey, North Carolina, Illinois, Oklahoma, South Carolina, Tennessee, Texas, Virginia. The tree is usually found on moist sites including well-drained, sandy loam and silty clay flood plains along streams. It sometimes occurs in pure stands.

Heartwood Color
Brown
Grey
Pinkish tinge

Varies from light tan or pale yellow brown to pale or dark brown

Sapwood Color
Brown
White
Grey
Width varies
Whitish to light brown


Grain
Figure

Open


Crotches, swirls and burls are occasionally present and plainswan boards have plumed or flare-grained appearance. The grain pattern is tighter, and figuring is usually lower in riftsawn lumber. Quartersawn material often has a flake pattern which are sometimes referred to as tiger rays or butterflies
Rays are typically longer than red oak.

Texture
Coarse
Medium to coarse


Natural Durability
Very durable


Wood produced by members in the white oak group is highly regarded for its natural resistance against attack by decay fungi and other wood destroying organisms. Logs are highly vulnerable to attack by ambrosia beetles, and standing trees and logs are also readily attacked by forest longhorn or Butrespid beetles

Odor
Has an odor
No specific smell or taste


Kiln Schedules
US=Upland T4-C2/T3-C1
US=Lowland T2-C1


Drying Defects
Surface checks
Ring failure
Honeycombing possible
Gray sapwood stain
End checks
Defects include:uneven moisture, chemical stains, iron stains, and are attributable to wetwood (usually in old growth)
Collapse


Ease of Drying
Slowly
Thick Stock Requires Care
End-Coating
Difficult


Tree Size
Tree height is 10-20 m
Trunk diameter is 100-150 cm


Product Sources
Swamp chestnut oak is one of the members in the white oak group that are mixed and marketed together. White oak veneers are plentiful, and supplies of lumber are also abundant. Price of lumber is moderate, compared to other hardwoods.

Blunting Effect
Moderate dulling effect on cutting edges


Boring
Fairly difficult to very difficult
Very good results
Bored surfaces usually clean
Bored surfaces are smooth


Cutting Resistance
Fairly Difficult to Very Difficult to saw
Generally medium but is variable

Cross-Cutting and narrow-bandsawing are satisfactory

Gluing
Satisfactory gluing properties


Mortising
Fairly Difficult to Very Difficult


The material responds very well to mortising operations to produce clean surfaces

Moulding
Fairly Difficult to Very Difficult


Movement in Service
Moderate dimensional stability after seasoning
Medium


Nailing
Wood is heavy and hard
Pre-boring required


Planing
Fairly Difficult to Very Difficult
Good planing properties
A cutting angle of 20 degrees is recommended

Machining characteristics of white oak timbers are reported to vary with species and rate of growth. Softer timber from slow-growth trees are generally easier to work

Resistance to Abrasion
Highly resistant to wear
Good for flooring


Resistance to Impregnation
Resistant sapwood
Resistant heartwood
Sapwood is moderately resistant
Heartwood is very difficult to treat

High natural resistance to decay allows the heartwood to be used outdoors without chemical protection.

Response to Hand Tools
Softer wood produced by slow-growth white oak trees are reported to generally easier to work with hand tools

Routing & Recessing
Fairly Difficult to Very Difficult


Sanding
Yields clean surfaces
Responds very well to preservative treatment


Screwing
Generally good properties


Turning
Fairly Difficult to Very Difficult
Very good
Easy to turn


Veneering Qualities
Selected white oak logs are converted into veneers. When quartered, white oak veneers exhibit a flaked figure, while the very popular straight line figure is prominent in rift cut veneer

Steam Bending
Highly regarded for steam bending properties
Defect free material bends to very small radius of curvature

Proper precautions should be taken to prevent chemical staining of steamed wood in contact with iron or steel.

Staining
Liquid from some finishing products, especially those with high water content such as bleach and water-based stains, react with tannins in white oak to turn the wood green or brown.

Strength Properties
Low stiffness
Crushing strength = medium
Bending strength (MOR) = medium

Response to hand and machine tools in woodworking operations is reported to depend largely on the rate of growth of trees: slow grown trees are relatively easier to work. Wood from slow growing southern trees are comparably harder than the fast growing trees from the Appalachians.

Numerical Data
ItemGreenDryEnglish
Bending Strength955513622psi
Crushing Strength5591088psi
Hardness1215lbs
Impact Strength4940inches
Maximum Crushing Strength34697125psi
Shearing Strength1950psi
Stiffness149917351000 psi
Work to Maximum Load1213inch-lbs/in3
Specific Gravity0.590.64
Radial Shrinkage5%
Tangential Shrinkage11%
Volumetric Shrinkage16%
ItemGreenDryMetric
Bending Strength671957kg/cm2
Crushing Strength3976kg/cm2
Hardness551kg
Impact Strength124101cm
Maximum Crushing Strength243500kg/cm2
Shearing Strength137kg/cm2
Stiffness1051211000 kg/cm2
Work to Maximum Load0.840.91cm-kg/cm3
Specific Gravity0.590.64
Radial Shrinkage5%
Tangential Shrinkage11%

References
Boone, R.S., C.J. Kozlik, P.J. Bois and E.M. Wengert. 1988. Dry Kiln Schedules for Commercial Woods: Temperate and Tropical. United States Department of Agriculture, Forest Service, Forest Products Laboratory, General Technical Report FPL-GTR-57, Madison, Wisconsin.

HMSO, 1981. Handbook of Hardwoods, 2nd Edition. Revised by R.H. Farmer. Department of the Environment, Building Research Establishment, Princes Risborough Laboratory, Princes Risborough, Aylesbury, Buckinghamshire

Kaiser, J. 1994. Wood of the Month: Oaks Loom in Designs, Folklore and Symbolism. Wood and Wood Products, November, 1994. Page 52.

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. 1980. Textbook of Wood Technology, 4th Edition. 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.