AI-Assisted Document Reading & Estimating

AI reads construction drawings, extracts bar marks and estimates tonnage with confidence scoring.

Interactive Demo
merexa.com.au/app/reo-calculator — AI Extraction
B1
B7
B12
T3
T8
PF1

AI-located bar marks on plan

EXTRACTION SUMMARY

Tags Found

142

Matched

128

Unmatched

14

Confidence

94%

TONNAGE ESTIMATE

Footings8.2 t
PT Slab12.5 t
Mesh2.1 t
Total22.8 t
from Drawings + Schedules

What It Does

Merexa's AI engine reads construction drawings and reinforcement schedules, extracts bar marks, identifies structural elements (footings, slabs, beams, columns, walls) and estimates total tonnage — with confidence scoring, validation checks and a detailed confidence breakdown by factor. Historical project benchmarks compare your estimate against similar completed projects with similarity scoring and variance analysis. The AI learns from every confirmed or corrected extraction via the self-learning Knowledge Base, continuously improving accuracy. Multi-page PDFs are handled with automated chunking and parallel page-by-page extraction, and every run is saved with a full snapshot for comparison and rollback.

How It Works

1

Upload Drawings & Schedules

Upload structural drawings and reinforcement schedules — multi-page PDFs are chunked automatically.

2

AI Identifies Documents

AI detects drawing types, scales, grid systems, revision history and cross-references.

3

Extract Bar Marks

AI extracts bar marks from schedules and locates them on the plan with text-layer verification.

4

Estimate Tonnage

AI calculates tonnage by element category with confidence scores and validation checks.

5

Benchmark & Review

Historical benchmarks compare your estimate against similar projects — review, adjust and accept the BOQ.

Key Benefits

Site Team

  • Accurate material ordering
  • Bar marks pre-extracted for marking plans
  • Reduced manual take-off time

Office Team

  • Estimates in hours, not days
  • Confidence scoring shows where to focus review
  • Historical benchmarking validates estimates

See AI-Assisted Document Reading & Estimating in action

Request a personalised demo of this feature and the full Merexa platform.