Reference

Definition

What the word means. This is not a work instruction.

Before You Drill

Before drilling, verify the deck type, anchor type, embedment, edge distance, hidden utilities, post-tension risk, rebar scan requirements, rated assembly, and approved layout. Stop if the structure or slab is uncertain.

Drilling feels routine until it hits something that was never supposed to be hit.

Tools, Fasteners & Hardware 1st Year REF
Red-zone topic

This term belongs to rated, life-safety, grease, or structural work. Knowing the word is fine. Doing the work is a red-lane call — get direction before you touch it.

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