Pressure Treated Wood: Types, Grading Standards & More
Jul 16, 2007 · Pressure treated wood is lumber impregnated with a variety of preservative chemicals to prevent rot and insect infestation in exterior applications like decks and fences. Several species of wood can be treated, but a regionally available species usually predominates in any particular locale.
Treated Lumber Classifications: What You Need to Know
Jul 15, 2020 · In the AWPA Use Category system, all types of treated wood can be sorted into categories based on how well it holds up in different applications. Only a select few categories describe wood treatments that are suitable for marine use. See our chart below to learn what types of treated lumber we carry at Decks & Docks.
Pressure Treated Lumber Grades, Types, and Uses Explained
Pressure Treated Wood Grades. Since 1960, lumber in North America has been graded at lumber mills by trained inspectors for structural strength and quality control. The lumber is inspected for knots, splits, and other defects that can weaken the wood’s structural strength.
Grade Descriptions - SFPA - Southern Pine
Learn how to read grade stamps and end tags. SFPA provides guidance on nearly 95 Southern Pine lumber grade descriptions to show characteristics and typical uses.
The Pressure-Treated Wood Grade Guide
When it comes to choosing the right wood for a project, understanding the grades of pressure-treated wood is essential. Whether it is for a deck, a fence, an outdoor structure, or for interior applications, the category of pressure-treated lumber selected will determine the appearance, durability, and long-term performance of the project.
1 Above Ground components that may be required to be preserved for ground contact include joists and beams that are difficult to replace and critical to the structure or components that may be exposed to ground contact type hazards due to …
Pressure-Treated Grades and Retention Levels Explained
Nov 13, 2021 · Pressure-treated lumber comes in 5 different grades: Premium, Select, and Number 1, 2, and 3. The higher the grade, the fewer the knots, splits, and general defects. For constructing a backyard deck, Number 2 or higher grade boards are required by code and are preferred by experienced carpenters.