ASTM D4761 – Mechanical properties of lumber and wood-based structural material
ASTM D4761 is the ASTM set of test methods for determining the mechanical properties of stress-graded lumber and other wood-based structural materials. To match this to your program, talk with our team.
What ASTM D4761 Covers
It covers tension, compression, bending, and shear tests on full-size lumber and engineered products such as LVL, PSL, and glulam, yielding modulus of elasticity, modulus of rupture, and strength values.
How the Test Is Run
Full-size structural members are loaded in the appropriate configuration for each property, and the mechanical properties are calculated from the failure load, span, and cross-section.
Why It Matters
These properties support structural grading and building design; consistent fixturing and specimen handling are needed for reliable, comparable results across products.
Reading the Designation
Cited as ASTM D4761 with its edition year. Confirm the version and specimen or fixture requirements before finalizing your setup.
TensileMill CNC products for ASTM D4761
Our specimen-preparation systems and testing equipment compatible with ASTM D4761.

Grips and Fixtures for Tensile, Shear, and Flexural Testing of Wood Specimens
Grips and fixtures for tensile, shear and flexural testing of wood
Set up ASTM D4761 testing with TensileMill CNC
Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.