Quick, accurate numbers for the calculations that come up on every project — concrete volume, change order margin, retainage, and more. No sign-up, no spreadsheet, no guesswork.
Pick a calculator below. Each one runs right in your browser and works on your phone in the field or your desktop in the office.
Estimate volume, ready-mix cost, and bag count for slabs, footings, columns, and stairs. Link text: Calculate concrete
See how a change order shifts your blended project margin before you submit it for approval.
Work out retainage withheld and net payment due on your current pay application.
Convert between markup and margin so you know exactly what you're pricing a job at.
See what slow RFI turnaround is actually costing your projects in idle crew time and schedule slip.
These calculators solve the one-off numbers. Buildend tracks the real thing — budgets, commitments, change orders, and retainage — automatically, on every project, in real time.