A materials board is a contract. Treat it like one.

The materials board is the first place a project either aligns or quietly diverges. Everyone signs off on an image; the divergence shows up at delivery.

We treat the board as a contract: every sample named, sourced, and matched to a specification and a lead time. No "similar to", no placeholder.

When the board is a contract, procurement orders what was approved, the developer gets what they saw, and the variation conversation never starts.