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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
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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 |
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| Rank of relative endangerment based on number of occurences globally. |
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| May be rare in some parts of its range, especially at the periphery |
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| Demonstrably widespread, abundant, and secure globally |
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| Data source is Nature Conservancy |
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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
Varies from light tan or pale yellow brown to pale or dark brown
Sapwood Color
| Brown |
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| White |
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| Grey |
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| Width varies |
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| Whitish to light brown |
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Grain
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
Natural Durability
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 |
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| No specific smell or taste |
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Kiln Schedules
| US=Upland T4-C2/T3-C1 |
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| US=Lowland T2-C1 |
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Drying Defects
| Surface checks |
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| Ring failure |
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| Honeycombing possible |
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| Gray sapwood stain |
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| End checks |
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| Defects include:uneven moisture, chemical stains, iron stains, and are attributable to wetwood (usually in old growth) |
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| Collapse |
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Ease of Drying
| Slowly |
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| Thick Stock Requires Care |
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| End-Coating |
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| Difficult |
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Tree Size
| Tree height is 10-20 m |
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| Trunk diameter is 100-150 cm |
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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 |
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Boring
| Fairly difficult to very difficult |
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| Very good results |
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| Bored surfaces usually clean |
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| Bored surfaces are smooth |
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Cutting Resistance
| Fairly Difficult to Very Difficult to saw |
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| Generally medium but is variable |
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Cross-Cutting and narrow-bandsawing are satisfactory
Gluing
| Satisfactory gluing properties |
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Mortising
| Fairly Difficult to Very Difficult |
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The material responds very well to mortising operations to produce clean surfaces
Moulding
| Fairly Difficult to Very Difficult |
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Movement in Service
| Moderate dimensional stability after seasoning |
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| Medium |
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Nailing
| Wood is heavy and hard |
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| Pre-boring required |
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Planing
| Fairly Difficult to Very Difficult |
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| Good planing properties |
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| A cutting angle of 20 degrees is recommended |
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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 |
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| Good for flooring |
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Resistance to Impregnation
| Resistant sapwood |
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| Resistant heartwood |
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| Sapwood is moderately resistant |
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| Heartwood is very difficult to treat |
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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 |
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Sanding
| Yields clean surfaces |
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| Responds very well to preservative treatment |
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Screwing
| Generally good properties |
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Turning
| Fairly Difficult to Very Difficult |
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| Very good |
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| Easy to turn |
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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 |
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| Defect free material bends to very small radius of curvature |
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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 |
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| Crushing strength = medium |
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| Bending strength (MOR) = medium |
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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
| Item | Green | Dry | English |
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| Bending Strength | 9555 | 13622 | psi |
| Crushing Strength | 559 | 1088 | psi |
| Hardness | | 1215 | lbs |
| Impact Strength | 49 | 40 | inches |
| Maximum Crushing Strength | 3469 | 7125 | psi |
| Shearing Strength | | 1950 | psi |
| Stiffness | 1499 | 1735 | 1000 psi |
| Work to Maximum Load | 12 | 13 | inch-lbs/in3 |
| Specific Gravity | 0.59 | 0.64 | |
| Radial Shrinkage | 5 | | % |
| Tangential Shrinkage | 11 | | % |
| Volumetric Shrinkage | 16 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 671 | 957 | kg/cm2 |
| Crushing Strength | 39 | 76 | kg/cm2 |
| Hardness | | 551 | kg |
| Impact Strength | 124 | 101 | cm |
| Maximum Crushing Strength | 243 | 500 | kg/cm2 |
| Shearing Strength | | 137 | kg/cm2 |
| Stiffness | 105 | 121 | 1000 kg/cm2 |
| Work to Maximum Load | 0.84 | 0.91 | cm-kg/cm3 |
| Specific Gravity | 0.59 | 0.64 | |
| Radial Shrinkage | 5 | | % |
| Tangential Shrinkage | 11 | | % |
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.
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