ASTM D3966

Full Name

ASTM D3966 – Standard Test Methods for Deep Foundations Under Lateral Load


The test methods described in this standard measure the lateral deflection of a vertical or inclined deep foundation when subjected to lateral loading.

These methods apply to all deep foundations, referred to herein as “pile(s)”, that function in a manner similar to driven piles or cast in place piles, regardless of their method of installation, and may be used for testing single piles or pile groups.

The test results may not represent the long-term performance of a deep foundation.


field testing; jack; lateral static pile capacity; load cell; loading procedure; reference beam

ASTM D3966 Accredited Laboratory

Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM D3966 standard.

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