What Is a Snag List or Punch List in Construction?
A snag list (also called a punch list) records incomplete construction work and defects identified during inspections, with locations, photographs, assigned responsibility, current status and verification of closure.
When Is a Snag List Prepared?
Snagging is common as a building approaches handover or practical completion, but issues can be recorded during earlier inspections too. The contract and project quality procedures establish when inspections take place, who can accept rectification and what evidence is required. A snag list is a tracking record; it is not, by itself, a certificate of completion.
What Should Each Snag Record Contain?
- Reference and date: a unique snag identifier and date raised.
- Location: building, floor, room, grid or element reference.
- Description: a specific statement of the defect or incomplete work.
- Evidence: photographs and relevant drawings or specification references.
- Responsibility: the contractor or subcontractor assigned to rectify the item.
- Priority and due date: if used in the project workflow.
- Status and action history: contractor responses, challenges, repairs and inspections.
- Verification: the inspector's decision and closure record.
How Does the Snag List Workflow Work?
- Inspect: the inspector identifies an issue and records its precise location and a clear photograph.
- Assign: the snag is distributed to the responsible party.
- Respond: the contractor acknowledges, requests clarification or challenges the item with supporting evidence.
- Rectify: the contractor corrects the issue and records the completed work.
- Verify: the inspector revisits or reviews the evidence under the project inspection procedures.
- Close or return: the item is closed after authorized verification, or stays open with further comments.
A contractor's statement that a repair is complete is not necessarily the same as the inspector's confirmation that the snag is closed.
Example: A Defective Window Seal
During an inspection, a visible gap is found at a window perimeter seal. The snag identifies the room and window, describes the gap and attaches a photograph. The assigned façade subcontractor repairs the seal under the approved system requirements and submits completion evidence. The inspector then verifies the repair and either closes the snag or provides comments for further correction.
Snag List vs NCR, Observation and DLP Defect
Snag or punch-list items generally track incomplete work and defects found at inspection or near handover. A Nonconformance Report (NCR) formally manages a failure to meet a specified requirement. An observation may highlight an issue needing attention, while a defect discovered during the Defects Liability Period (DLP) may be governed by separate procedures. The applicable record depends on the contract and project rules. See Observation vs NCR vs Snag vs Defect for the detailed comparison.
Excel Snag Lists and Digital Snag Management
For a small project, a consistently maintained spreadsheet may be sufficient. Larger projects benefit from controlled assignments, a history of responses, photographs and clear verification status. SnagHere allows teams to record and follow up on snags and generate an Excel report containing photographs, color-coded states and individual QR codes that link back to the corresponding snag records for authorized users.
Example: Snag List Report with Photos, Status Colors and QR Codes
This real SnagHere-generated report illustrates how snag information can be presented in Excel. The colored blocks show each snag's recorded state, alongside its description, response history, photograph and QR code. The color scheme is specific to the report, not a universal industry standard.
View and download the sample snag list Excel report. To generate and track your own snag reports, visit SnagHere on Quollnet.
When Can a Snag Be Closed?
Closure should be recorded only after the responsible reviewer verifies that the required corrective work satisfies the agreed acceptance criteria. Outstanding items, contested findings and handover conditions should be managed according to the project contract and quality procedures.
