ASTM D6570-04

D9-20

Standard Terminology Relating to Wood and Wood-Based Products

ANSI/AF&PA NDS

National Design Specification for Wood Construction

D198-22a

Standard Test Methods of Static Tests of Lumber in Structural Sizes (Includes all amendments and changes 10/14/2022).

D245-25

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

D143-25

Standard Test Methods for Small Clear Specimens of Timber

D4761-25

Standard Test Methods for Mechanical Properties of Lumber and Wood-Based Structural Materials

D4444-25

Standard Test Method for Laboratory Standardization and Calibration of Hand-Held Moisture Meters

D4442-20(2025)

Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials

D3737-18(2023)e1

Standard Practice for Establishing Allowable Properties for Structural Glued Laminated Timber (Glulam) (Includes all amendments and changes 11/9/2023).

D2915-25

Standard Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products

D2555-17a(2024)e1

Standard Practice for Establishing Clear Wood Strength Values (Includes all amendments and changes 2/23/2024).

D2395-17(2022)

Standard Test Methods for Density and Specific Gravity (Relative Density) of Wood and Wood-Based Materials

D1990-26a

Standard Practice for Establishing Allowable Properties for Visually-Graded Dimension Lumber from In-Grade Tests of Full-Size Specimens (Includes all amendments and changes 8/25/2026).

D1165-25

Standard Nomenclature of Commercial Hardwoods and Softwoods

CSA O141

Softwood Lumber

PS 20

Voluntary Product Standard, American Softwood Lumber Standard