Bar Diameter Estimation
Estimate bar diameter without coring — useful when drawings are missing or out of date.
Measure the cover before the fixing goes in.
Without drawings, ferro scanning is the fastest non-destructive route to a bar-diameter estimate. We use the calibrated diameter feature on professional equipment and cross-check with coring on a representative sample where required.
Where it helps
- When cover depth must be verified for compliance
- Before drilling small-diameter fixings
- When GPR resolution is insufficient at shallow depth
- When a structural engineer needs reinforcement detail
- During defect investigation on a reinforced element
- For pre-condition surveys on heritage structures
What you receive
- Bar position plan with measured depths
- Estimated bar diameter table
- Cover-depth statistics versus design
- Annotated PDF report with photographs
- Digital plan in DXF / DWG
A note on interpretation. Ferro scanning measures cover depth and bar spacing; bar diameter is estimated where conditions allow. Readings are indicative of the reinforcement detected and should be verified against design before any compliance decision.
Often surveyed together.
GPR Concrete Scanning
Ground penetrating radar finds rebar, post-tension cables, conduits, and voids hidden inside concrete — before they become a problem.
Learn moreConcrete Testing
On-site non-destructive and intrusive testing methods, including rebound hammer testing, pull-out testing, core extraction, and laboratory compressive strength testing.
Learn moreMore from Ferro Scanning.
- Ferro ScanningCover Depth
Measure cover depth to design and code requirements with calibrated electromagnetic equipment.
- Ferro ScanningRebar Spacing
Verify reinforcement spacing across slabs and walls for design conformance.
- Ferro ScanningReinforcement Mapping
Map reinforcement layout across walls, slabs, and beams.
Need cover depths you can trust?
Send drawings, photos or proposed fixing locations and we'll advise the right survey approach.