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Savings calculator
What ParitySense is worth to your business.
Built from published industry research, not guesswork. Every assumption is on the page — change any number to match your portfolio.
a year in time and rework
hours back · about full-time people
Before disputes, delays and liquidated damages — which we leave out.
How we calculate
Conservative by design.
Where research gives a range, we use the low end.
| Saving | How it's worked out | Basis |
|---|---|---|
| RFIs drafted | RFIs per $1M of construction × portfolio value × complexity. Half are raised from a document conflict the agents found; drafting one with the evidence attached saves 1.5 of the ~2 hours it takes by hand. | 17.2 RFIs per $1M on $5–50M projects, falling to 1.1 on $1–5B; ~8 hours per RFI across both parties [Navigant] |
| Rework avoided | Portfolio value × field rework rate × share of rework caused by poor data × the share the agents help prevent (you set it). | Rework 0.76% of contract value [Love 2026] — older studies put it at 2–12%; 52% of rework from poor data and miscommunication [FMI] |
| Revision checks | Sheets × issues a year × minutes saved: by hand every sheet is compared; with ParitySense the reviewer checks only the listed changes (a quarter of sheets, 3 minutes each). | Sheets per project scale with value and complexity (100 + 5 per $1M) |
| Drawing register | 2 minutes a sheet to key a title block by hand, versus a 10-minute spot-check of what the agents read. | Our assumption — change it with the sheet count |
| Tender reviews | One tender-to-contract review per project: about 40 hours side by side, versus 8 hours reviewing the agents' list. | Our assumption, scaled by complexity |
A full-time person is 1,720 hours a year. Figures are estimates for planning, not a guarantee.
Not counted
The biggest numbers aren't in the total.
Errors and omissions in contract documents were the leading cause of construction disputes in North America in 2024, where the average dispute was worth US$60.1M [Arcadis]. Large projects typically run 20% late and up to 80% over budget [McKinsey]. One avoided dispute can be worth more than everything above.
a week per person lost to searching for data, resolving conflicts and fixing mistakes [FMI]
RFIs on an average project, with a median reply time of 9.7 days [Navigant]
Sources
- Love — How much does field rework in construction actually cost? (ASCE, 2026), reporting his Journal of Construction Engineering and Management study.
- FMI and PlanGrid — Construction Disconnected (2018), survey of nearly 600 construction leaders.
- Arcadis — 2024 Construction Disputes Report.
- McKinsey — Imagining construction's digital future.
Check the numbers on your own project.
A pilot on one live project shows your real hours — not ours.