Published 1978 by Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station in Broomall, Pa .
Written in EnglishRead online
|Statement||by Leland F. Hanks and Robert L. Brisbin.|
|Series||Research paper NE -- 423.|
|Contributions||Brisbin, Robert L., Northeastern Forest Experiment Station (Radnor, Pa.), United States. Forest Service.|
|The Physical Object|
|Pagination||13 p. :|
|Number of Pages||13|
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Lumber grade yields for graded aspen logs and trees (Forest Service research paper NE) [Hanks, Leland F] on *FREE* shipping on qualifying offers.
Lumber grade yields for graded aspen logs and trees (Forest Service research paper NE)Author: Leland F Hanks. Green lumber grade yields for aspen were determined for use with the U.S.
Forest Service hardwood log and tree grades. The yields for logs are expressed in percent of total lumber tally volume, and those for trees are expressed in board feet.
Overruns for the International 1/4-inch and Scribner log rules along with lumber recovery factors are. Lumber grade yields for graded aspen logs and trees. Broomall, Pa.: Forest Service, U.S.
Dept. of Agriculture, Northeastern Forest Experiment Station, (OCoLC) Green lumber grade yields for aspen were determined for use with the U.S. Forest Service hardwood log and tree grades. The yields for logs are expressed in percent of total lumber tally volume, and those for trees are expressed in board feet.
Overruns for the International li4-inch and Scribner log rulesCited by: 1. Recommended Citation. Hanks, L.F. and Brisbin, R.L., "Lumber grade yields for graded aspen [Populus tremuloides] logs and trees" ().
Aspen : L.F. Hanks, R.L. Brisbin. For exmple, a select, c~tt log is usually topped by a grade 1 log, a grade i log by a grade 2, and a grade 2 butt log is usually topped by a grade 3 log, The consistency of this 1, 2, 3 order of log occurrence is demonstrated in table 2, for PO5 trees.
The particular value of this system is that by: 1. Hardwood Log Grades and Lumber Grade Yields for Factory Lumber Logs [Leland F Hanks, Glenn L Gammon, Robert L Brisbin, Everette D Rast] on *FREE* shipping on qualifying offers.
Forest Service Research Paper NE, Northeast Forest Experiment Station, Broomall, PA;92 pagesAuthor: Leland F Hanks, Glenn L Gammon, Robert L Brisbin.
Lumber grade yields for graded aspen [Populus tremuloides] logs and treesAuthor: L.F. Hanks and R.L. Brisbin. attracts to itself logs having similar standard lumber grade yields and values. Each of the three log grades--high, medium, and low--has corresponding lumber grade yields with high, medium, and low average Lumber grade yields for graded aspen logs and trees book.
The log grade specifications are correlated closely with the specifications for standard hard-wood lumber grades.
A board is graded on theFile Size: 2MB. ABOUT THE PRODUCTS. You can contact us for any specific information you need at or email [email protected] Mostly Colorado native woods are processed here; This page is Aspen. These are natural products. The checks and cracks found in wooden logs, posts, timbers and lumber are due to shrinkage as wood dries and occur along the grain.
all log diameters, while the Doyle Rule underestimates the true yield of lumber for smaller logs. The actual yield of lumber from a scaled log will vary with mill technology, wood species and other factors.
Log Diameter (inches) 10 15 20 25 30 Predicted Lumber Yield (percent) 40 50 60 70 80 90 D o y l e S c a l e International 1/4" Rule OverrunFile Size: 1MB. An Overview of Lumber Grades and Wood Quality. Lumber is graded based on the quality and appearance of the wood. These depend on various factors like the type of wood used and the number and types of defects, if any.
Before we get into the different grades of lumber, let’s take a look at the various defects you may find in a piece of lumber.
Common Lumber Defects. How to predict lumber-grade yields for graded trees. Upper Darby, Pa.: U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, (OCoLC) The National Grading Rule establishes the lumber classifica-tions and grade names for visually stress-graded dimension lumber (Table 6–2) and also provides for the grading of dimension lumber by a combination of machine and visual methods.
Visual requirements for this type of lumber are developed by the respective rules-writing agencies forFile Size: KB. After grade and thickness have been determined, special features, such as the amount of forty-five degree radial grain for classification as quarter sawn lumber and the amount of figure as specified for figured woods and some quartered woods, shall be considered.
The grade shall be determined from the poor side of the piece, except when. the difficulty of handling long logs and finding trees which will yield such lozs, the trend has been toward palisade type construction. Quality Aspen logs should 1)e reasonably, straicht, free from rot, surface scars, bird pecks and discoloration.
Sweep should not exceed two h1ches per eight foot Size: 2MB. Lumber Services. Audit Services; Visually Graded Lumber; Grademarks; Mechanically Graded Lumber; Glued Lumber; Heat Treated; Export-KD Certificates; Lumber Grading Rules. Explore the use of the common grades to achieve the most value considering lumber cost and yield.
For complete details the grading rule book can be purchased from the National Hardwood Lumber Association. While most woodworkers would like to have a large, clear, defect free board this may be a waste of a valuable resource. When selecting wood for a woodworking project, consider the size of.
MSR lumber is distinguished from visually stress graded lumber in that each piece is non-destructively tested. MSR lumber is also required to meet certain visual grading requirements.
The grade mark can include "1W" or "2W" if visually graded to the wane requirements for No.1 or No.2 dimension lumber.
What you need to know is that these grades correlate with the quality of the lumber that can be cut from a tree, and therefore the value of said lumber. Prime grade logs will produce mostly FAS lumber (the highest grade) that is well suited for furniture and cabinets. Truly exceptional logs. of lumber produced, will vary with the log grade.
The grades allow easy estimation of lumber volume yield by NHLA grade, based upon log size and USFS grade. With price information, value yields for different log sizes and USFS grades are easily computable. The USFS grades provide a. Aspen has no odor and imparts no taste to food-stuffs, so it's ideal for baskets, bowls, and containers.
Children's toys made from aspen remain splinter-free. Across the southern reaches of the nation, aspen lumber may be hard to find. Where sold, however, the boards will be high quality, but generally neither unusually wide nor thicker than 1".
specialty and appearance-grade products remain characterized by a variety of regionally oriented, species-specific grades maintained by accredited grading agencies. Member Grading Agencies This publication offers a represen-tative sampling of western soft-wood grades provided by the member agencies of the Softwood Export Council (SEC).
Cedar of all the foregoing grades and surface textures is manufactured by members of the Western Red Cedar Lumber Association (WRCLA). To ensure that the cedar you specify meets the appropriate grade, be certain to specify WRCLA member production.
Grading designation depends on the number of defects in a board. A lower grade can be perfectly acceptable, depending on placement and usage.
Hardwoods are graded by the National Hardwood Lumber Association. Here's a chart to help explain the grading system. Grades are listed from highest to lowest.
Many of the uses mentioned above are for larger trees. Small diameter logs will likely have many knots, so construction lumber is not possible. Plus, small trees tend to have compression wood. The warping of small logs with the juvenile wood is also a problem, so the uses such as siding, flower boxes, fence boards, and other items where.
Some aspen logs are cut into highly figured logs and sliced into decorative veneers. The wood can have fantastic crotches with a very attractive mottled figure and streaks of. How To Get Your Lumber Grade Stamped. By Dan Cassens, Professor of Wood Products at Purdue University.
Although local enforcement and rules differ in each part of the country regarding whether or not you need to have an official grade stamp on your lumber in order to use it for construction projects, we’ve found that many people don’t know how to go about doing it right in their area. The percentage yield of clear wood needs to be the same as other species in each grade, but the pieces can be much smaller.
A great example is in the FAS (First and Seconds) grade of lumber. Most building codes/span tables tend to treat it like SPF lumber. Keep in mind it is much easier to nail it green than seasoned. My best friend has built two log homes out of aspen - both of them have 1 1/2\" t&g aspen flooring.
Other than building lumber, aspen has many uses in both engineered wood products and pulp/paper. Lumber intended for ordinary construction and building purposes. Yard lumber is usually graded visually, meaning that an inspector looks at the lumber’s appearance to give it a grade.
Yard lumber is broken down into two further categories: common and select. Common Yard Lumber. Common lumber is suitable for construction and utility purposes. Lumber Products. 1 Inch Boards. 2 & 3 Inch Boards. 4, 5, & 6 Inch Beams. 8, 10 & 12 Inch Beams.
D-Logs. Log Siding. Color Pine. Accent Walls. Mantels. Poles and Logs. Decorative Aspen Poles/ Logs. Log Wraps/Post Covers. Firewood. Firewood to pick up. Firewood to. It goes like this: Cut: Trees are selected based on the mill’s specifications and requirements, then cut down at the base Clean: Trees are taken to the mill and run through a debarking machine to remove the outer layer of bark and the cambium Section: Logs are run through a saw that cuts them into 8’ sections (i.e.
a 32’ long log would produce four 8’ sections). lumber yield and provide you the most fiber per 1 common board. American Lumber’s Super Common Red Oak Available in 4/4” Full ” and wider 7’ and longer Provides 25% higher minimum yield over standard 1 Common lumber For more information contact us at or visit INCREASING YOUR YIELD.
bucking options, the resulting logs were graded using the Forest Service hardwood log grading system (Kenna, ) and lumber grade yields (Hanks et. al, ). The grade yields are given in percentages. Each log was scaled using the Doyle Rule and 20 percent was added for overrun.
The red oak lumber values used were fromFile Size: KB. The best and most expensive grade. Boards 5 1/2" and wider, 8' and longer. The FAS grade includes a range of boards which yield from 83 1/3% (1O/12ths) to % clear wood in cuttings at least 3" wide by 7' long or 4" wide by 5' long.
FAS is graded from the worst side of the board. The FAS grade will provide the user with long, wide, clear cuttings. lumber grades - 50%) 2S = No. 2 Sawmill Pine (Old growth logs suitable for the manufacture of D Select & Better lumber grades - 35%) 3S = No. 3 Sawmill Pine (Old growth logs suitable for the manufacture of No.
2 Shop & Better lumber grades - 50%) 4S = No. 4 Sawmill Pine (Logs suitable for the manufacture of No. 2 Common & Better lumberFile Size: KB. The time of year that the popple trees are harvested seems to have some impact on how much the lumber twists as it dries.
I have sawn popple using a chainsaw mill, and the logs that were harvested in the fall after all growth for the year was complete seem to yield wood lumber that doesn't twist as much as logs harvested in mid-June.
A wide variety of aspen lumber options are available to you, such as other timber. There are 92 suppliers who sells aspen lumber onmainly located in Europe. The top countries of suppliers are France, France, and Russian Federation, from which the percentage of aspen lumber supply is 18%, 18%, and 17% respectively.
HT: “Heat Treated” Heated to at least ° Fahrenheit for 30 minutes at the board’s core to kill any insects present in the wood. Planing. After it has been dried, most softwood lumber is run through a planer where it is smoothed and cut to uniform width and thickness.
Planed lumber is designated as S4S if it has been surfaced on all four sides or S2S if the edges are left rough.
Lumber (North American English) or timber (as used in other areas) is a type of wood that has been processed into beams and planks, a stage in the process of wood is mainly used for structural purposes but has many other uses as well.
There are two main types of lumber. It may be supplied either rough-sawn, or surfaced on one or more of its faces. Hardwood Pallet Logs MAXIMUM diameter on butt end 18″. Standard deductions taken for sweep, rot, etc.
Hardwood logs not meeting specs are paid at $80/m or culled; ASPEN/BASSWOOD: MINIMUM diameter 10″, maximum diameter on butt end “ We are now buying many species and grades of hardwood saw logs.
Prices are subject to change on short notice.Quaking aspen is the State Tree of Utah. Aspen wood is often used for mouldings, doors, furniture components and excelsior packing materials. MTE Wood is a leading supplier of sustainably-sourced aspen lumber, sawlogs, and byproducts.
Aspen Wood Characteristics. Aspen trees .