What is a submittal in construction? (with a free template)

A plain-English guide for MEP, HVAC & electrical contractors · 6 min read

If you run mechanical, electrical or plumbing work on a commercial job, submittals are unavoidable — and they're where schedules quietly slip. Here's what a submittal actually is, what goes in one, and how to turn them around in hours instead of weeks.

What a submittal actually is

A submittal is the package a contractor sends to the architect or engineer to prove the products they intend to install match the project specification. Think product data sheets, shop drawings, samples and manufacturer cut sheets, organized by spec section (for example, 23 05 00 for common HVAC work). The design team reviews it and marks each item Approved, Approved as noted, Revise and resubmit, or Rejected — before anything gets ordered or installed.

Why submittals matter

Order the wrong equipment off an unapproved sheet and you eat the restocking fee, the delay, and sometimes the whole margin on the job. A clean submittal process is cheap insurance: it's the step that catches a mismatch on paper instead of on the roof.

What goes in a submittal package

• A cover sheet — project, spec section, contractor, date, revision.
• Product data / manufacturer cut sheets, marked to show the exact model you're providing.
• Shop drawings where the spec requires them.
• Samples or certifications when called for.
• A submittal log tracking the status of every item.

The typical process — and where it breaks

Assemble the package → send it to the GC or engineer → wait → get it back marked up → revise → resend. It breaks in email: nobody's sure which version is current, items sit in an inbox, and the field sometimes builds off an old sheet. The paperwork isn't hard — keeping it straight across people and revisions is.

How to do submittals faster

Two things fix most of the pain. First, keep the whole package in one place with live status per item, so you chase only what's actually stuck. Second, stop assembling packages by hand. With MEPSub's AI submittal builder you drop in the spec section and your cut sheets and it assembles the formatted package for you, matched to the spec, in minutes — then tracks every item's status automatically. It's free for up to 5 users, so you can run one on a real spec without spending a dollar.

The short version

A submittal proves your products match the spec before you install them. A good process keeps every item in one place with a clear status, so approvals move and nothing gets built off an old sheet. Do it by hand and it's an afternoon per package; let software assemble it and it's a few minutes.