Review it before you build it.
Plumb systematically reviews drawing packages across 14 categories of common design, documentation, and fabrication-related issues before release.
Every sheet receives a consistent review pass, giving your team another chance to identify missing information, inconsistencies, fabrication concerns, and other potential problems while they are still easy to fix. Reviews as low as $1.50 per sheet.
Build with confidence.
One more review pass before drawings reach production.
Upload your drawing package.
Submit a PDF drawing package directly to Plumb. No CAD integration. No file conversion. No new design software for your team to learn.
Plumb reviews every sheet.
Plumb checks the complete package for common design, documentation, fabrication, and engineering-related issues. Missing dimensions. Conflicting details. Weld and connection issues. Finish discrepancies. Incomplete information. Items that need professional review.
Get the review back.
Receive a marked-up PDF and Excel findings log within 24 hours. Your team reviews the findings, makes the necessary decisions, and moves the package forward.
Plumb does not replace your QA process. It makes your QA process harder to beat.
Plumb is a systematic documentation review pass. It is not a replacement for engineering, and not exhaustive. No review process identifies every issue; final responsibility rests with your team and your Engineer of Record.
Upload a PDF. Get two files back.
Plumb fits into the review process you already have. No new CAD platform. No complicated implementation. Your team gets practical review files that drop directly into the workflow you already use — and an online viewer when you want to walk the findings sheet by sheet.
Marked-Up PDF
Your original drawing package is returned with findings clearly identified where they occur.
- • Bubble comments at every finding, color-coded by severity
- • PE-Review-Required findings marked with a [PE] badge
- • Sheet-specific references
- • Review summary and finding details included with the package
Excel Comment Log
Real rows from the published sample review.
Every finding is organized into a file your team can sort, filter, assign, and track.
- • One finding per row
- • Sheet reference
- • Severity
- • Recommended action
- • Finding description
- • Sortable and filterable output
The kind of thing a review returns
Representative examples of the number and severity of issues a package can return, with the sort of issue Plumb flags. These are illustrative, not customer results — for an actual review, published with the fabricator’s permission, see the sample review.
“Weld size missing on B/8. Would have stopped the welder at fit-up.”
“Wall panel dimensions conflicted between plan and elevation, creating a 1 1/2-inch fit discrepancy at installation.”
14 categories. Every sheet. Every package.
Plumb checks every sheet against common design, documentation, and fabrication-related issues. The review is built around the kinds of things an experienced reviewer looks for with a red pen, applied systematically across the entire package.
Dimensions
Are parts fully dimensioned? Do dimension chains close? Are required tolerances provided?
Welds & Joints
Are weld size, type, length, finish, and joint requirements clearly defined?
Materials & Finishes
Are material grade, thickness, alloy, coatings, colors, and finish requirements complete and consistent?
Cross-Sheet Consistency
Do general notes, details, schedules, plans, and elevations agree with one another?
Connections
Are bolt types, grades, hole patterns, edge distances, fasteners, and connection requirements clearly documented?
Fabrication & Assembly
Are subassemblies, fabrication relationships, bill of materials, and sequence requirements clear enough to build from?
Shipping & Field Installation
Are splice locations, handling requirements, installation conditions, anchors, and field interfaces coordinated?
Scope & Professional Review
Are by-others items and scope boundaries clear? Are conditions requiring engineering judgment identified for licensed professional review?
Built for teams that review drawings before production.
Fabrication Shops
Add a systematic review pass before shop drawings leave the building and issues reach fabrication.
Engineering & Contractor Teams
Identify missing dimensions, conflicts, incomplete details, and documentation issues before senior reviewers spend time on them.
Design-Build Teams
Add another layer of review across drawing packages before they move from design into procurement, fabrication, or field execution.
The cheapest place to fix a drawing is on paper.
Your team knows what to look for. The challenge is checking for everything, on every sheet, every time.
When something gets missed, the cost depends on when it gets caught. A drawing issue that takes minutes to correct during review can lead to lost labor, RFIs, rework, scrapped components, and schedule impact once production begins.
Missed dimension
RFI, coordination, interrupted production
Wrong material or finish
Replacement material, rework, refinishing
Connection issue found in the field
Re-fabrication, field labor, equipment, shipping, schedule impact
Illustrative estimates — typical ranges, not Plumb data.
Priced per sheet, not per problem.
Plans start with a single package. No subscription required.
View Pricing →More than 50 years of experience across design, fabrication, and construction.
We have seen what happens when incomplete or conflicting information moves through design, into fabrication, and eventually into the field.
A small issue on a drawing can become a much larger problem once material is ordered, labor begins, schedules are committed, and work reaches installation.
That experience shaped a simple belief: a careful review is most valuable before production begins.
Common questions.
01Does Plumb replace our existing drawing review?+
02Does Plumb provide engineering?+
03What do I need to upload?+
04How quickly do reviews come back?+
Build with confidence.
Ready to see what we’d find in your drawings?
Add one more systematic review pass before production and see what your existing process may have missed.
Start with a single package. No subscription required.