By trade
Fire protection calculators
Passive fire protection is quantified by a rating rather than by a room. The question is never how big the wall is — it is what the wall has to achieve for how long, which decides the layers, the thickness and every penetration's treatment separately.
- 13Calculators
- 2Parts of the site
How fire protection is measured
Volume for sealants and collars per penetration, thickness at a section factor for coatings to steel, and counts of layers or boards for a rated construction. Detection is spacing-based: a coverage radius per device against a ceiling's geometry.
Electrical2
Materials & Quantities11
- Cavity Barrier Run and Crossing Count Calculator
- CMU Equivalent Thickness Calculator
- Fire Extinguisher Count and Travel Distance Calculator
- Fire-Rated Glazing Typical Edge Clearance Reference
- Firestop Joint Movement and Sealant Volume Calculator
- Intumescent Fireproof Coating Volume Calculator
- Mass Timber Char Depth & Residual Section Calculator
- Multi-Layer Fire-Rated (Type X) Gypsum Sheet Calculator
- Occupant Load and Escape Route Width Calculator
- Penetration Firestop Caulk Volume Calculator
- Single-Sided Fire-Rated Gypsum Board Calculator
What gets left off a fire protection order
- Penetrations. Every pipe, cable and duct through a rated element is its own detail, its own product and its own certificate.
- Cavity barriers at every compartment line and around every opening in a cavity — linear work that appears on no elevation.
- The section factor for steel. Two members of the same weight take different thicknesses of coating depending on their shape and exposure.
- Junctions: where a rated wall meets a floor, a roof or another wall is where most failures are found.
Job takeoffs4
Where passive-fire installers meet the rest of the job: each runs one of these calculators, with every other trade in the same job beside it.
Comparisons2
Two ways of doing the same work, weighed against each other.