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Sunday, April 26, 2020 | History

3 edition of American softwood lumber standard found in the catalog.

American softwood lumber standard

National Institute of Standards and Technology (U.S.)

American softwood lumber standard

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Published by U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, For sale by the Supt. of Docs., U.S. G.P.O. in Gaithersburg, MD, Washington, DC .
Written in English

    Subjects:
  • Softwood -- Standards -- United States,
  • Lumber -- Standards -- United States

  • Edition Notes

    SeriesVoluntary product standard -- PS 20-94, Voluntary product standard -- PS 94-20
    The Physical Object
    FormatMicroform
    Paginationvii, 35 p.
    Number of Pages35
    ID Numbers
    Open LibraryOL14962924M

    PS20 American Softwood Lumber. Date: industry-wide grade marking and inspection of softwood lumber. This Standard also provides a basis for the coordination of the grades of the various species of softwood lumber, the assignment of design values to lumber when called for, and the preparation of grading rules applicable to each species. Commerce preliminarily determined that exporters of softwood lumber from Canada received countervailable subsidies of percent to percent. In , imports of softwood lumber from Canada were valued at an estimated $ American Softwood Lumber Standard (PS ) Sizes. The American Wood Council (AWC) is the wood products division of the American Forest & Paper Association (AF&PA). AF&PA is the national trade association of the 4 Span Tables for Joists and Rafters American Wood Council DESIGN CRITERIA: Deflection - For 30 psf live Size: KB.


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American softwood lumber standard by National Institute of Standards and Technology (U.S.) Download PDF EPUB FB2

The American Softwood Lumber Standard PS 20, of the U.S. Department of Commerce, relates lumber size to moisture te size schedules for green and dry lumber assure that both products will approximate the same size in service.

All bills and invoices are required to show actual net sizes of lumber. [This Standard, which was initiated by the American Lumber Standard Committee, has been devel- oped under the Procedures for the Development of Voluntary Product Standards of the U.S. Depart- ment of Commerce to supersede PS “American Softwood Lumber Standard.”]File Size: KB.

The American Lumber Standard system is the result of this process. PS 20 is published by the National Institute for Standards and Technology (NIST) operating under the U.S. Department of Commerce. PS 20 is available as an Adobe pdf version on the NIST web site or can be obtained here.

American Softwood Lumber Standard PS having dimensions which conform to the American Softwood Lumber Standard, PS These sizes are as follows: Nominal Actual Surfaced Size Dry Size 2 x 4 /2 x /2 2 x 6 /2 x /2 2 x 8 /2 x /4 Span Tables for Joists and Rafters American Wood Council.

American Wood Council. conforming to the American Softwood Lumber Standard if the Board of Review determines that the dimension lumber rules therein fail to conform to the provisions of the National Grading Rule for dimension lumber" established in conformance with Section 11 of PS The National Grading Rule applies to all.

softwood lumber. It includes the organization and functions of the American Lumber Standard Committee, the Board of Review, and the National Grading Rule Committee.

Commercial names of the principal softwood species, definitions of terms used in describing standard grades of lumber and commonly used industry abbreviations are also provided. World-Renowned Softwood. America is recognized worldwide as a sustainable source of top quality softwood lumber.

Species such as Douglas Fir, Eastern White Pine, Southern Yellow Pine and Western Hemlock are renowned for their strength, flexibility, versatility and beauty, and have been exported for almost years.

Open Library is an open, editable library catalog, building towards a web page for every book ever published. American softwood lumber standard by National Institute of Standards and Technology (U.S.),U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, For sale by the Supt.

of Docs., U.S. G Pages: So, Dimension Lumber is primarily a size classification for a certain type softwood lumber product that is graded by a standard rule.

This lumber is intended for use as framing members such as joists, planks, rafters and studs for building wood framed structures. 2×4’s through 2×12’s and all 4×4’s are common examples of Dimension Lumber. The American Softwood Lumber Standard was developed by the American Lumber Standard Committee (ALSC) in accordance with the Procedures for the Development of Voluntary Product Standards of the U.S.

Department of Commerce. The ALSC membership is appointed by the Secretary of Commerce to constitute a proper balance among producers, distributors File Size: 1MB.

American red alder Grows exclusively in the Pacific Northwest between the vast stands of softwood timber, such as Douglas fir and pine, and is the. General This Voluntary Product Standard establishes and maintains, through a consensus process and in the public interest, standard sizes (both in metric1 and conventional units) and general requirements for developing grades of softwood lumber.

The fact that the softwood lumber dispute has taken so long to resolve-and the prospect that the agreement has the potential to be undone by continuing litigation and trade friction-raise important questions about international relations in a world that is Cited by: Upcoming Events Expo Camacol – Medelin, Colombia International fair of construction, architecture and design, AugustExpo CAPAC – Panama City, Panama International fair of construction and housing, SeptemberExpo Ferretera – Guadalajara, Mexico International fair of construction and housing, SeptemberFMC China, Shanghai.

Dimensional lumber is a term used for lumber that is finished - planed and cut - to a standardized width and depth specified in inches.

Commercial lumber dimensions - American Softwood Lumber Standards - nominal and actual sizes are indicated in the table below. General rule converting nominal to actual softwood dimensions. Get this from a library. American softwood lumber standard: a voluntary standard developed by the National Bureau of Standards in cooperation with producers, distributors, and users.

[United States. National Bureau of Standards.]. Get this from a library. Span tables for joists and rafters: American softwood lumber, standard sizes PS [National Forest Products Association.]. The Canada–U.S. softwood lumber dispute is one of the largest and most enduring trade disputes between both nations.

This conflict arose in and its effects are still seen today. British Columbia, the major Canadian exporter of softwood lumber to the United States, was most affected, reporting losses of 9, direct and indirect jobs between and The National Institute of Standards and Technology (NIST) is soliciting public comment on a proposed revision to Voluntary Product Standard (PS)American Softwood Lumber Standard.

This standard, prepared by the American Lumber Standard Committee, serves the procurement and regulatory needs. Lumber manufactured and measured according to the provsi oi ns of these rules may be regarded as American and/or Canadian Standard Lumber meeting the provisions of PS 20 and/or CSA and may be so designated.

(Commonly referred to as ALS and/or CLS Lumber.) 5. Original Grading The grade of lumber, as determined by the grader, appliesFile Size: KB. accredited by the American Lumber Standard Committee, Inc. (ALSC), under the U.S. Department of Commerce.

RIS, WCLIB and WWPA are accredited rules-writing agencies and represent three, of only six, agencies in the U.S. whose grading rules are certified as conforming to the American Softwood Lumber Standard PS This U.S.

product standard. grading rules for American hardwood lumber. They were established over years ago by the newly formed National Hardwood Lumber Association (NHLA).

Today the NHLA has over members worldwide, and the NHLA rules are still the national standard for the US hardwood industry and form the basis for grading of export Size: KB. Buying & Selling Softwood Lumber: A Guide to the Lumber Market of North America [Dave Leckey] on *FREE* shipping on qualifying offers.

Buying & Selling Softwood Lumber: A Guide to the Lumber Market of North America4/5(1). Sam. At the top of our softwood lumber manufacturing industry, in this case, we have the Department of Commerce.

The Department of Commerce publishes the Voluntary Product Standard for Softwood Lumber. These standards date back to at least ; however, the first one with any real teeth was introduced in and was known as the PS Finished lumber is supplied in standard sizes, mostly for the construction industry – primarily softwood, from coniferous species, including pine, fir and spruce (collectively spruce-pine-fir), cedar, and hemlock, but also some hardwood, for high-grade flooring.

It is more commonly made from softwood than hardwoods, and 80% of lumber comes. The Binational Softwood Lumber Council is a strategic investor in initiatives that generate significant and sustainable economic benefits for the North American softwood lumber industry.

American Softwood Lumber Standard (ALS) lumber, but such boards shall be marked to show the size and condition of seasoning at the time of dressing.

They shall also be distinguished from nominal 1-inch boards on invoices and certificates. 2 Variation resulting from resawing surfaced redwood lumber may be plus or minus 1/32 inch. Softwood Lumber as listed in Standard Grading Rules No.

17 The Quality Stamp. West Coast Lumber Inspection Bureau i NOTES ON STANDARD PATTERNS The standard patterns listed in this booklet are those listed in Paragraph of File Size: 1MB. FOR DIMENSION LUMBER NATIONAL GRADING RULE for DIMENSION LUMBER. INTRODUCTION.

Product Standard “American Softwood Lumber Standard” published by the U.S. Department of Commerce, stipulates that a National Grading Rule Committee com-posed of members competent in the field of lumber technol-File Size: KB.

agencies, work through the American Lumber Standard Committee (ALSC) to maintain a voluntary consensus softwood standard, called the American Softwood Lumber Standard (PS 20–94). The PS 20–94 Standard prescribes the ways in which stress-grading principles can be used to formulate grading rules designated as conforming to the American Lumber File Size: KB.

proved by the Board of Review of the American Lumber Standard Committee and certified for conformance with U.S. Department of Commerce Voluntary Product Stan-dard PS (American Softwood Lumber Standard). Reference design values for most species and grades of visually graded dimension lumber are based on provisions of ASTM Standard D The Association's Grading Rules for Western Lumber establishes standards of size and levels of quality in conformance with the American Softwood Lumber Standard PS WWPA is certified as a rules writing and inspection agency by the Board of Review, American Lumber Standard Committee and is approved to provide mill supervisory services under.

Softwood lumber in the United States is most commonly graded according to the guidelines of the American Softwood Lumber Standard PSestablished by the US Department of Commerce. In this article, you will learn about the grading system for softwoods, the most common type of wood used for : Networx Team.

guidelines of the American Softwood Lumber Standard PSestablished by the U. Department of Commerce. Canadian softwood lumber imported into the U. is graded by inspection agencies in Canada that also adhere to the American Softwood Lumber Standard.

For purposes of grading, softwood lumber may be categorized into two categories ofFile Size: 42KB. 2 The Origins of Grading Rules – Secretary of commerce responds to request from lumber industry for simplification, standardization, and QA – R 16 Lumber – American Lumber Standards for Softwood Lumber – DOC VPS PS File Size: KB.

General—This Product Standard covers the principal trade classifications and sizes of softwood lumber for yard, structural, and shop use. It provides a common basis of understanding for the classification, measurement, grading, and grade marking of rough and dressed sizes of various items of lumber, including finish, boards, dimension, and timbers.

Softwood lumber in the United States is most commonly graded according to the guidelines of the American Softwood Lumber Standard PSestablished by the U. Department of Commerce. Canadian softwood lumber imported into the U. is graded by inspection agencies in Canada that also adhere to the American Softwood Lumber Standard.

DOC PS “American Softwood Lumber Standard” was developed by the American Lumber Standard Committee, the Standing Committee responsible for maintaining the standard.

The revision was processed in accordance with provisions of Department of Commerce “Procedures for the Development of Voluntary Product Standards” (15 CFR part 10). The American Softwood Lumber Standard, PSlists specific shrinkage factors from green to percent moisture content that were used historically to set green lumber dimensions for most species ( percent for thickness and percent for width).

The standard does not provide a means of adjusting lumber dimensions to any other File Size: KB. Dimensional lumber is cut to a specific length, width, and depth. However, there is a difference between the nominal size (what the lumber is referred to) and the actual size.

The tables below provide both the nominal and actual sizes so many common North American lumber sizes. Article Contents. Softwood Lumber Dimensions. Softwood Lumber Lengths. Western Wood Products Association SW First Ave., STE Portland, OR Phone: Fax: Email: [email protected] American Softwood Lumber Standard Available from Standardization Documents Order Desk, Bldg.

4 Section D, Robbins Ave., Philadelphia, PAAttn: NPODS. ICS Code ICS Number Code (Walls.American Softwood Lumber Standard. National Institute of Standards and Technology Vol ASTM Standards. D9 Terminology Relating to Wood and Wood-Based Products. D Test Methods of Static Tests of Lumber in Structural Sizes.

D Practice for Establishing Structural Grades and Related Allowable Properties for Visually Graded Lumber.