The following information in reproduced exactly as it is printed in the book “NLGA (National Lumber Grades Authority) Standard Grading Rules for Canadian. lumber grading rules. The NLGA rule is approved and enforced by the Canadian Lumber. Standards Accreditation Board (CLSAB) and by the American Lumber. 1 Jan The NLGA Interpretations incorporate the National Grading Rule entirety. For other than the NGR portions of the NLGA Rules, NLGA.
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Canadian Council of Independent Laboratories. International Organization for Standardization. National Electrical Graading Association. Some pieces may exhibit a few minor characteristics which do not detract from their high appearance and quality. American Wood Protection Association. Hamilton Hydro-Electric System Specifications. Nlga grading rules Water Works Association. Ready Mixed Concrete Association of Ontario. Underwriters’ Laboratories of Canada.
Publications for Download – National Lumber Grades Authority (NLGA)
National Council Highway Research Program. Western Red Cedar Bevel Siding is produced by resawing kiln dried surfaced lumber on a bevel to produce two pieces thicker on one edge than the other and is most commonly used as exterior siding, giving a horizontal shadow line effect. Factory Primed Bevel Siding Factory primed products shall be identified with a stamp or label by the producer.
All nlga grading rules in the bundle conform to the corresponding length of the bundle. Traffic Engineering Council Committee. American Society of Safety Engineers. Many pieces have a fine appearance on one side, the reverse side showing larger or more numerous characteristics. Glued-Up Bevel Siding End-glued, edge-glued or a combination of end and edge-glued Bevel Siding is intended to be interchangeable in use value with one-piece stock of a comparable grade.
Ministry of Transportation, Ontario. Infraguide of Best Practices. British Board nlga grading rules Agrement. International Slurry Surfacing Association.
National Concrete Masonry Association. Lengths are random with percentages as specified by the shipper. Geosynthetic Nlga grading rules Test Methods and Standards. This grade may include stock too thin to dress in standard sizes.
End-glued, edge-glued or a combination of end and edge-glued Bevel Siding nlga grading rules intended to be interchangeable in lnga value with one-piece stock of a comparable grade.
The thick edge may contain light torn or raised grain. Pieces of Panelling, Drop Siding nlga grading rules Ceiling run to pattern may be partially surfaced or hollow or scratched back.
Additional requirements for which the producer is responsible are:.
The thick edge permits minor characteristics that do not detract from the appearance of the piece in use. National Asphalt Pavement Association. Strategic Highway Research Program.
California Department of Transportation. This portion nlga grading rules the thin edge may contain characteristics that will be covered when laid and will provide a suitable backing. Organisation for Economic Co-operation and Development.
NLGA Grading Rules
tules National Fire Protection Association. Standards of accredited organizations or other agencies. United Kingdom Highways Agency. Otherwise mixed grain M. Characteristics and limiting provisions are: Some pieces may contain: American Society for Testing and Materials. Additional requirements for which the producer is responsible are: Insulating Cable Engineers Association. Material supplied with this finish shall in all nlga grading rules adhere to the grades, sizes and patterns as specified, except that it shall nlga grading rules graded from the textured face.
Except for siding intended for rough side use, bevel siding is graded on the surfaced side with characteristics and limiting provisions nlga grading rules in the grades applying to the exposed width. National Institute of Standards and Technology.
Ministere des transports du Quebec MTQ.
Standard Grading Rules for Canadian Lumber
International Concrete Repair Institute. Pieces are graded from the resawn side. Corp of Engineers Specifications. International Municipal Signal Association.