Intro: Ballistic performance gets most of the attention, but a training structure also has to just be a sound structure - able to bear its own weight, support multi-story configurations, and hold up under normal structural loads, not just gunfire.

What Compressive Strength Actually Measures

It's a measure of how much load a material can bear before it fails structurally - the foundational engineering question behind any concrete structure, ballistic-rated or not.

Why This Is Tested Separately from Ballistic Performance

A material can be excellent at stopping rounds and still be a poor structural choice if it can't reliably bear real-world loads - especially relevant for Amidon's multi-story capability, where upper floors depend on the compressive strength of what's beneath them.

Independently Verified, Not Self-Reported

BlueLine Consulting's testing covers this specifically, alongside ballistic penetration - two related but distinct engineering questions, both verified by the same independent lab rather than taken on faith.