Givens Fire & Forestry

Forestry Toolbox

Free calculators and a plant identifier for height, volume, cords, wildfire risk, and species ID — built for Montana landowners.

  • Free to use
  • No account needed
  • Field-tested formulas

Free Planning Tools

Four Tools, Zero Guesswork

Size up a tree, identify plants, estimate firewood yield, or screen wildfire risk at your address. Each tool stands alone — and your results are a useful starting point for removal quotes, defensible-space consulting, and mitigation work.

Height

Tree Height Calculator

Estimate tree height without climbing. Choose from five methods — angle, shadow, line-of-sight, clinometer, or triangulation — with metric and imperial units.

  • 5 measurement methods
  • Metric & imperial units
  • Print, email, and full how-to guide
Open Height Calculator

Volume

Tree Volume & Cords Calculator

Got a felled tree and want to know how much firewood you’ve got? Enter bottom diameter, top diameter, and height to get volume and cord estimates in real time.

  • Live volume + cord conversion
  • Frustum formula for tapered logs
  • What-is-a-cord reference guide
Open Cord Calculator

Wildfire risk

Wildfire Risk Calculator

Enter a property address for fuel, slope, weather, and a surface fire risk score — a practical first look before defensible-space consulting or fuel mitigation on your land.

  • Official US fuel-layer data at your pin
  • Live weather + 16-day outlook
  • Great prep for a defensible-space walkthrough
Open Risk Calculator

Species ID

Plant & Tree Identifier

Snap or upload a photo to identify plants and trees — then see Montana-specific fire-risk notes for species near your home or in your defensible space zones.

  • Photo ID from your phone or desktop
  • Top 3 species matches with confidence
  • Local fire-risk notes for common Montana species
Open Plant Identifier

Built for the field

Who these tools help

Free calculators for timber, firewood, and wildfire screening — useful on their own, and a solid head start before removal, defensible-space consulting, or fuel mitigation work.

  • Homesteaders & Firewood Sellers

    Turn felled timber into cord counts before you stack, split, or quote a delivery — no guesswork on volume.

  • Homes at the Forest Edge

    Screen wildfire risk at your address, then bring the results to a defensible-space consult — we’ll walk the property and build a real mitigation plan.

  • Tree Work & Field Planning

    Measure height for removal tiers, run quick volume checks in the field, and walk into a quote with numbers — not ballpark guesses.

Need more than a calculator?

We handle the work behind the numbers

Tree removal, defensible-space consulting, fuel mitigation, and cleanup across Southwest Montana. Bring your calculator results — we’ll take it from there.