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Shop our selection of Wood Decking Boards in the Lumber and Composites Every piece meets the highest grading standards for Every piece meets the highest grading
Lumber Grades YellaWood is available in multiple lumber grades to meet the needs of any job. You can find the grade noted on the ink stamp that is applied by the sawmill. Most building supply stores stock only a few grades of lumber, but a wider variety of grades can be special ordered.
Lumber grading can be strict in order to give consumers reliable ratings. People just like you who are planning to build something like a deck or any outdoor structure for that matter, benefit by a good grading system.
Grade Descriptions; Grading Methods *Mechanically Graded Lumber - Machine Evaluated Lumber MEL : 4" and less in thickness, 2" and wider Select Decking: An
Lumber Grade and Verifying the Load Capacity of Railing Posts. In Question and Answer in the May/June 2011 issue, Andy Engel wrote on the subject of wood species and posts and referenced "4x4s in number 2 and better grades of common deck-building wood species."
Lumber Grades And Uses There are over thirty different grades of redwood lumber including general purpose grades and specialized grades for a single use. There is a grade of redwood for almost any application suitable for wood. Redwood is graded by appearance and durability, with criteria defined by the Redwood Inspection Service.
It is available in nearly every lumber outlet in various grades and in common lumber dimensions plus 5/4 spoken five-quarter decking profiles. Tags stapled on the ends of lumber indicate the intended use, e.g., above-ground or ground contact.
The wood you choose should be structurally sound, suitable for the environment you live in, and aesthetically pleasing functional, durable, and beautiful. Lumber grading considers several wood characteristics. There are three primary grades of wood, 1, 2, and 3, and the lower the number the better the wood.
Lumber grading rules are a set of criteria used to decide how various characteristics, such as wane, knots, grain, texture or manufacturing defects affect the structural properties of dimension lumber or the aesthetic value of appearance grades. Lumber manufacturers are responsible for grading lumber products according to these rules, with
Above-grade use .25, sometimes .15 . Typically used for decking, fence and railing material. Ground-contact use .40 . Typically used for posts, beams, joists and, again, decking. Below-grade .60 . Typically used for support posts that are partially buried below grade and for permanent wood foundations and planters.
The grade of the lumber is ink-stamped on each piece at the sawmill; if you have been disappointed with the appearance of Standard grade decking or 2 grade lumber, consider stepping up to Seven Trust decking and 1 or C and Btr 2x6.