Submittals are the formal documentation by which the contractor proves what they're installing matches the contract documents. Here's how the types differ, what they're for, and which ones require designer action.
CSI/CMAA divides submittals into Action Submittals (designer reviews and responds) and Informational Submittals (designer files for reference). Action Submittals are shop drawings, product data, and samples. Informational Submittals are test reports, certifications, manufacturer instructions, and maintenance data. Both belong in Section 01 33 00 of the specifications.
The designer's stamp on an Action Submittal means "reviewed for general conformance with design intent," not "approved as the final installation." Understanding this distinction avoids costly disputes about means and methods responsibility.
Shop drawings are prepared by the contractor, fabricator, supplier, or subcontractor to show specific information about a product or system. They include dimensions, fabrication details, field measurements, and coordination with adjacent work.
Typical examples: structural steel shop drawings, curtainwall shops, casework shops, millwork, reinforcing placement drawings, pre-cast panel shops, mechanical equipment installation drawings.
Shop drawings are NOT a substitute for the contract drawings, if the shop drawing conflicts with the contract drawings, the contract drawings govern unless the designer explicitly approves the deviation.
Product data consists of manufacturer-supplied technical information on a product, cut sheets, performance data, installation instructions, and certifications. Typical format: standard manufacturer catalog pages with options highlighted to show the specific product being furnished.
Review focus: does the product meet the specification? Are optional features correctly selected? Are warranty terms included?
Samples are physical specimens of a product, typically submitted for appearance, color, and texture approval. Common for masonry, tile, stone, carpet, paint, and specialty finishes. Full-size samples are often required for brick ranges, stone, and specialty metal panels.
Designer stamps the approved sample, the approved sample is retained on site, and installation must match the approved sample.
Mockups are full-size assemblies of multiple components, typically exterior wall assemblies, bathroom mockups, or typical room fit-outs. Used to verify quality, coordination, and appearance before production work begins. Covered in detail in our construction mockup guide.
Informational submittals are submitted for record, the designer files them without formal review action:
Standard designer response options:
For the broader document flow, see our submittal log guide.
Related references for submittals, specifications, and closeout.
How to maintain a submittal log and schedule.
Mockup planning, approval, and disposition.
Prescriptive, performance, and proprietary specs.
The MasterFormat divisions 00-49.
Closeout documentation submittal.
Parallel shop drawings during design.