PROFESSIONAL AS-BUILT QA

As-built Tolerance Reporter

Compare design coordinates with measured construction, apply traceable tolerances and issue a clear, client-ready compliance report.

✓ Design vs as-built✓ Element-specific tolerances✓ PASS / WARNING / FAIL✓ PDF & CSV evidence

REPORT CONTROL

Project and acceptance criteria

Project Client Contractor Survey company Prepared by Checked by Report reference Revision Report date Coordinate system Default horizontal tolerance (mm) Default vertical tolerance (mm) Warning threshold Drawing / specification Survey instrument Survey date

Important: tolerances must come from the approved drawings, specifications, ITP or formal agreement. Example profiles are convenient starting points, not contractual acceptance criteria.

MEASURED ELEMENTS

Design and as-built observations

Apply tolerance profile

Point / element	Category	Description / location	Design E	Design N	Design RL	As-built E	As-built N	As-built RL	H tol. mm	V tol. mm	Evidence / photo ref.	Comment / corrective action

COMPLIANCE SUMMARY

As-built quality status

Total elements0

PASS0

WARNING0

FAIL0

Incomplete0

Compliance0%

SearchStatusCategory

Element	Category	ΔE	ΔN	Horizontal	ΔRL	3D deviation	Tolerances H / V	Status	Comment / action

ISSUE DELIVERABLE

Export and certify the comparison

Overall engineering conclusion Limitations and survey notes

I confirm that the entered values have been checked against the stated design information and that any exceptions are identified in this report.

WORKFLOW

How to prepare a defensible as-built tolerance report

Control the design information. Record the approved drawing, model, revision and coordinate system used for comparison.
Confirm acceptance criteria. Obtain written horizontal and vertical tolerances for each construction element.
Use verified survey control. Complete suitable checks before measuring the as-built work and retain raw observations.
Match identical features. Ensure each measured point represents the same physical location and design definition.
Review exceptions. Investigate failed or borderline items, record evidence and assign corrective action or formal concession.
Independent check and issue. Have a competent checker review the comparison before the PDF is transmitted or used for acceptance.

How is horizontal deviation calculated?

The reporter calculates ΔE and ΔN in millimetres, then uses the vector length √(ΔE² + ΔN²). Vertical deviation is assessed separately using the absolute ΔRL.

What is WARNING?

WARNING means the observation is still within tolerance but has reached the selected percentage of either the horizontal or vertical limit. It provides an early review band; it is not a contractual classification unless agreed.

Does PASS prove the construction is acceptable?

No. PASS applies only to the coordinates, tolerances and records entered. Dimensions, completeness, survey uncertainty, workmanship, design intent and other requirements may also govern acceptance.

Where is project data stored?

The current register is saved locally in the browser and is not uploaded by this tool. Export controlled project copies because browser storage may be cleared.