FREE FIELD TOOLS · NO SIGNUP
The site engineer’s
digital field kit.
Practical calculators, printable records, and engineering references for the small jobs that should not need another spreadsheet—or another login.
THE COMPLETE KIT
Choose the job in front of you.
Every tool opens immediately and is designed to produce a useful result on site, in the office, or during a quick technical check.
Welder Continuity Tracker
Paste your welder roster and see who’s still qualified, expiring soon, or already lapsed — free PDF included.
Bolt Torque & Proof Load Reference
ISO 898-1 proof load and torque reference for metric bolts M6-M60, property classes 8.8/10.9/12.9.
Bolt Tightening Sequence
A numbered star/crisscross tightening diagram for any bolt count, plus a 30/60/100% pass breakdown.
Steel Weight Calculator
Get weight per meter and total weight for beams, channels, angles, plates, and pipe.
Daily Site Report Template
A free, fillable template for daily site reporting — see what Rangka.co automates for you.
Tolerance & Fit-Up Reference
Structural erection and piping fit-up tolerances, in one lookup.
Punch List / Snag List Template
Downloadable QC close-out checklists for structural, piping, and mechanical.
WHEN THE FIELD KIT BECOMES A WORKFLOW