Added a link to TradeTools — the one-app version of this calculator and 61 more, for HVAC, electrical, plumbing, fire protection, solar and carpentry. Nothing else changed.
Only the current version so far — new entries appear as the app ships updates.
Sprinkler Hanger Spacing NFPA is a tools app by Rizvan Adzhoyan with 10+ downloads (about 13 estimated). +1 installs in the last 7 days. Released Sep 9, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “NFPA 13 max spans for steel, copper and CPVC, hanger count and bracing.”
