Our latest ASTM C 170 tests show that the Compressive Strength for Lyons Sandstone average psi perpendicular to the rift is 32,402 psi. (For comparison, ASTM minimum standards are as follows: Marble 7500 psi, Limestone 1800-8000 psi, Granite 19000 psi, Quartzitic Sandstone 4000 psi.)
You can download our latest ATSM test results for further technical details: 2015 ASTM results (PDF).
Please also take a look at our photo gallery for example projects using our stone. We are more than happy to answer any questions you may have.