Submittal
Product data, shop drawings, samples, or other documentation a contractor sends to the architect or engineer for review and approval before ordering or installing a material or system, confirming it actually matches what the design calls for.
Why it matters
Building from the wrong material or the wrong size because nobody checked first is expensive to undo. The submittal process is the checkpoint that catches a mismatch on paper, before it's ever poured, framed, or installed.
On a real project
A steel fabricator submits detailed shop drawings for a structural beam showing exact dimensions and connections. The structural engineer reviews them and returns them "approved as noted," with a few dimension corrections, before the fabricator cuts any steel.
Who this matters most to
A Project Engineer typically owns the submittal log day to day, tracking dozens of items through review and chasing down approvals that are taking too long. A Superintendent feels it from the field side: work can't safely start on an unapproved item without risking a costly redo.
Where this goes wrong
A contractor gets impatient waiting on a slow architect and installs a batch of windows before their submittal comes back approved. The approval finally arrives two weeks later with a rejection, because the wrong glazing was ordered, and the already-installed windows have to come back out, at the contractor's own cost, since installing ahead of approval was their choice.
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