TinnerFlow
Use plain jobsite words like damper access blocked, flex sag, TDC not lining up, hanger rod too short, or before I cut. TinnerFlow gives you the closest route, the warning level, the next checks, and a clean foreman question.
TinnerFlow helps you slow down and ask better. It does not approve cutting, drilling, rigging, rated work, seismic/structural attachment, grease duct changes, or field modifications.
Foreman, approved drawings, specs, manufacturer instructions, employer policy, and AHJ/local code always win.
Field Rescue checks urgent routes first. If your search is more like a training question, it also pulls foundation basics and learning matches from Apprentice Q&A.
Open Apprentice Q&ASearch the field problem above, or tap one of the examples. Results will show as scannable field cards.
Open one of the common field lanes below.