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CLASSIFIRE

Calculators

Thickness from the tables.Quantities you can defend.

Schedule-based calculators work out protection thickness and material quantities for structural steel, ductwork and firestopping from published manufacturer assessment data.

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Structural steel I-beam with fire protection

Five calculators

One schedule each, published data behind every line

Each calculator reads thickness from the manufacturer's assessment tables and pools the materials you need to order.

  1. 01

    Steel (spray)

    Spray thickness and bags

  2. 02

    Steel (board)

    Board thickness and sheets

  3. 03

    Steel (intumescent)

    Dry film thickness and kits

  4. 04

    Ductwork

    Thickness or wrap layers

  5. 05

    Firestopping

    Collars, wraps and mastic

Next published value

Selection steps up to the next higher published factor or period. Blank table cells stay unavailable.

Pooled before rounding

Whole bags, sheets and kits come from the pooled total, not from rounding every line.

Fails closed

If assessment evidence is missing or out of range, the result is withheld with a status, not guessed.

Built to be checked

Conservative by design

The calculators were built from proven estimating workbooks and checked against Microsoft Excel, then made stricter where the workbooks were not.

3,471
Schedule cases checked against Excel
1,000
Rows per schedule
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Every product, its own assessment

  • Structural steel I-beam with fire protection

    Steel (spray)

    Six spray products

    CAFCO 300, MANDOLITE CP2, FENDOLITE MII, PERLIFOC HP ECO+, MONOKOTE MK-6 HY and MONOKOTE Z106.

  • Steel (board)

    Board and sheets

    PROMATECT 100, 250 and XS, and Trafalgar COREX, from 30 to 180 minutes.

  • Steel frame with intumescent coating samples

    Steel (intumescent)

    Dry film thickness

    Nullifire SC902, FIRETEX FX5090 and FIRETEX FX6010, in microns.

  • Ductwork

    Rectangular ducts

    CAFCO, MONOKOTE and FyreWrap, across five FRLs from 60/60/60 to 240/240/180.

  • Service penetration through a fire-rated wall

    Firestopping

    Penetrations

    Pipes, bundles, cable trays, substrates and bulkheads, with editable task hours and waste.

  • FACTOR CALCS

    Section factors

    Enter A/V, Hp/A or ESA/M, with helpers for idealised hollow sections.

How a schedule works

Schedule, recalculate, issue

  1. 1

    Fill the SCHEDULE

    Type rows in, or use Export Template, fill it in Excel and Import Schedule (up to 5 MB).

  2. 2

    Adjust SETTINGS

    Yields, waste and other numeric settings are editable. Assessment data stays read-only.

  3. 3

    Recalculate

    Review the SUMMARY: thickness, areas and pooled quantities.

  4. 4

    Download

    The schedule as PDF and XLSX, and the Product Summary PDF.

Steel frame protected with board

Questions & answers

How the numbers are worked out

The thickness and quantities are withheld and the row shows a status, so nothing is guessed.

Use Export Template, fill it in and Import Schedule (up to 5 MB). Other layouts are not mapped.

They are pooled across the schedule, then rounded, instead of rounding each line.

Yes. Numeric settings are editable. The manufacturer assessment data is read-only.

No. Calculator schedules and the priced quote are kept separate, so nothing moves without you.

More of the platform

Everything else in CLASSIFIRE

Run your next schedule in CLASSIFIRE.

Thickness from the tables. Quantities you can defend.

View plans Request a demo