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| Title | Publication | Publish Year |
|---|---|---|
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Juvenile Wood as a Cause of Seasonal Arching in Trusses
Seasonal arching of roof trusses has become increasingly prevalent in recent years. Recent research projects have suggested that this phenomenon is caused by moisture differences between upper and lower chords […]
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Forest Products Journal | 1985 |
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Kerf Width and Lumber Yield
Different kerf width sizes usually give different volumes of lumber at certain cant widths. Kerf widths of 9/32 inch and 12/32 inch were used to saw cants of 4, 6, […]
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Forest Products Journal | 1964 |
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Kerfing to Prevent Decay of Douglas-Fir Poles: An Update
The ability of kerfing to limit the development of deep checks and minimize fungal decay was evaluated on pressure-treated Douglas-fir electric transmission poles. After 18 to 19 years of service, […]
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Forest Products Journal | 1986 |
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Kiln brown stain in radiata pine: a short review on cause and methods for prevention
Kiln-drying of radiata pine (Pinus radiata D. Don) sapwood causes the development of a chocolate-brown discoloration, commonly called kiln brown stain. Kiln brown stain develops just under the surface, but […]
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Forest Products Journal | 1999 |
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Kiln Temperature Effect on Tensile Strength of Douglas-Fir and Western Hemlock Lumber
Effect of drying temperatures on tensile strength tension parallel to the grain was studied on 2- by 6-inch Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) and western hemlock (Tsuga heterophylla (Raf.) Sarg.) […]
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Forest Products Journal | 1976 |
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Kiln Time and Temperature Affect Shrinkage, Warp and Mechanical Properties of Southern Pine Lumber
Four hundred and eighty No. 2 Dense southern pine 2 by 6’s, 95 inches long, were kiln-dried in 4-foot-wide loads with a 3,000-pound top load restraint. The kiln-drying regimes consisted […]
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Forest Products Journal | 1980 |
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Kiln-Drying Douglas-Fir Pole Sections: Effects on Strength and Checking
To assess the effect of drying conditions on checking and strength properties, nine unseasoned Douglas-fir transmission poles were cut into 8-foot sections, divided into three diameter classes, and kiln-dried at […]
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Forest Products Journal | 1982 |
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Kiln-Drying of Western Juniper
Kiln schedules have not been available for western juniper (Juniperus occidentalis Hook.) lumber, which is not considered a commercial timber species. However, recently western juniper has been utilized for 5/8-inch […]
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Forest Products Journal | 1976 |
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Kiln-Stick Thickness Effect on Drying 2-Inch Western Hemlock Lumber
Increased kiln capacity in lumber dry kilns may be achieved by separating lumber courses with sticks thinner than is customary. Thin sticks may be made by impregnating multilayers of kraft […]
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Forest Products Journal | 1976 |
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Klemgard Park Footbridge–A Glued Wood Truss Structure
A simple pedestrian bridge of 80-foot span and 4-foot deck width was constructed using 1/4-inch glued finger joints in all shop made truss connections and using field glued and bolted […]
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Forest Products Journal | 1976 |
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Knifing Technique and Test Method When Used in the Evaluation of Hardboard to Fir Glue Lines
A conventional test of shear strength of glue bonds did not reliably evaluate glue bonds between plywood veneer and hardboard faces. A proposed “knife” test actually tested the hardboard-to-veneer bond […]
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Forest Products Journal | 1954 |
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Kraft Pulping of Earlywood and Latewood from Loblolly Pine
Kraft pulp yields from the earlywood and latewood of three loblolly pines (Pinus taeda L.) were determined without segregating these wood fractions prior to pulping. Latewood fractions yielded 2 to […]
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Forest Products Journal | 1970 |
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Laboratory Evaluation of Selected Fungicides for Control of Sapstain and Mold on Southern Pine Lumber
A number of fungicides and fungicidal mixtures were screened in, the laboratory to determine their efficacy in control of stain and mold on green southern yellow pine lumber. The fungicides […]
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Forest Products Journal | 1983 |
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Laboratory Evaluations of Nitric Acid Pulping of Bagasse and Softwoods
Chips, shavings, and bagasse were pulped by concentrated and dilute nitric acid, nitrogen dioxide, and solvents containing nitric acid. Weak pulps, high costs, loss of solvents, and skimpy by-products led […]
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Forest Products Journal | 1960 |
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Laboratory-Scale Development of a Structural Exterior Flakeboard from Hardwoods Growing on Southern Pine Sites
Reports a series of experiments designed to develop a 1/2-inch-thick, structural, exterior, mixed-species flakeboard functionally competitive with sheathing grades of plywood. The board design settled on was comprised of equal […]
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Forest Products Journal | 1975 |
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Laminated Crossarms
Studies were made to evaluate physical properties of various designs of laminated crossarms with a view to the preparation of a single specification covering all types of crossarms in order […]
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Forest Products Journal | 1955 |
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Laminated Veneer Lumber Made from Plantation-Grown Conifers
Research was undertaken to determine the feasibility of upgrading the products of small, low quality plantation-grown timber in New York State by demonstrating that laminated veneer lumber (LVL) could yield […]
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Forest Products Journal | 1981 |
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Laminating Small Timbers and Dimension Lumber from Southern Yellow Pine
Production of laminated 2 by 4 studs, 4 by 6 crossarms, 4 by 4 porch columns and other products by the Southern Pine Lumber Company of Diboll, Texas is described. […]
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Forest Products Journal | 1953 |
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Laser incising of Canadian softwood to improve treatability
Laser-incised black spruce and Douglas-fir lumber was successfully treated with chromated copper arsenate (CCA) type C preservative. However, the high number of incisions required, together with the relatively slow speed […]
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Forest Products Journal | 1991 |
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Lateral and Withdrawal Resistance of Tapping Screws in Three Densities of Wood
The ability of type-A tapping screws to withstand withdrawal and lateral loads in red oak, Douglas-fir, and redwood was investigated. Lateral load varied linearly with the wood’s specific gravity and […]
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Forest Products Journal | 1970 |
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Lateral Bearing Strength of Douglas-Fir Lumber-Plywood Joints Treated with Fire Retardants
More than 4,700 lumber-plywood joints were fabricated from different combinations of untreated and fire-retardant treated (FRT) Douglas-fir dimension lumber and 3/8-inch plywood. Five types of nails and 3 staples (6d […]
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Forest Products Journal | 1975 |
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Lateral Resistance of Nailed Joints–A Test Method
The strength and stiffness of light-frame building components depend on the lateral resistance of the nailed joints between the connected members. Use of the Standard ASTM test to determine lateral […]
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Forest Products Journal | 1984 |
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Lateral Tests of Wood Roof Sections Sheathed with Decking
Several roof sections, 20 by 60 feet and sheathed with nominal 3-inch. laminated decking, have been tested with lateral loading as diaphragms in recent years. Objectives of the tests were […]
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Forest Products Journal | 1972 |
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Lateral Tests of Wood Roof Sections Sheathed with Lodgepole Pine Decking
Four roof sections, 20 by 60 feet and sheathed with nominal 2-inch decking panels that were fabricated commercially from small pieces of lodgepole pine, were tested in lateral loading. In […]
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Forest Products Journal | 1979 |
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Lathe Check Formation in Douglas-Fir Veneer
High-speed motion pictures of veneer cutting with a roller-bar production lathe were analyzed to determine the effect of production variables, such as nosebar pressure and cutting, speed, on veneer smoothness […]
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Forest Products Journal | 1960 |