Forest inventory & timber cruising, all in one spot.
SilvaCruise lets you design a cruise, run it in the field, and generate reports — all in one place. Now with unit-shape import, plot-grid generation across multiple strata, and navigate-to-plot on offline maps.
Free to download · no account required · works completely offline.
The workflow
Design it, run it, report it.
The whole cruise in one app — set up your strata and products, collect data in the field one-handed with gloves on, and walk out with stand tables, per-species summaries, and statistics already done.
Four cruise methods
Variable-radius (prism/point), fixed-area, tree tally, and 100% measure — plus a quick BA cruise for recon and inspection plots.
Multi-product strata
Multiple strata and products in a single cruise, with nested biomass plots tracked separately from sawtimber volume.
Published volumes
Wensel & Olsen for western conifers, the Clark stem profile model for 49 southern species, FC78 fallback. Not generic table guesses.
Real statistics
CV, sampling error, confidence intervals, SDI and relative density — per-species sample-tree stats checked against the R5 cruiser manual.
Reports you can use
Stand tables, stock tables, per-species summaries, stratified results by product. Export to CSV or formatted Excel workbooks.
Works offline
Every calculation runs on-device. No signal, no WiFi, no problem. Run recon, check variability, then design the production cruise.
New
Maps & instant plot grids.
Your whole sale on a map, and grids you don't have to drop by hand.
- Units, boundaries, and plots on satellite, topo, hybrid, or street tiles
- Import unit shapes from GeoJSON or Shapefile
- Generate an even or random grid across each stratum — by spacing, plot count, or acres per plot
- Serpentine numbering for a sane walking path
- GPS position, true-north compass, navigate-to-plot — offline in the field
Pricing
Free where it counts.
The cruising tool is free. Pro adds the field extras for people who live in the unit.
Always free
No account required. Works entirely offline.
- All cruise methods & volume equations
- Unlimited cruises
- Quick BA cruise for recon
- Reference library & forestry formulas
- CSV data export
- Plot map viewer
SilvaCruise Pro
For the full map-and-export workflow.
- Shapefile & GeoJSON unit import
- Plot grid generation
- Full map navigation — GPS follow, compass, navigate-to-plot
- Formatted Excel (XLSX) workbooks
A few bucks a month. First two weeks free, cancel anytime.
And the rest of the vest
The whole reference library, too.
Every reference tool a forester carries — the laminated cards, the volume booklets, the conversion charts — all in the same app, all offline.
Log rules & volume tables
Interactive Scribner Decimal C, International ¼″, and Doyle lookups. Enter DBH and log count, get board feet.
Unit converter
Chains to feet, acres to hectares, MBF to cords, slope % to degrees — with the formula shown for each.
Species reference
80+ timber species with codes, ID notes, and cruising guidance for western and southern US regions.
Cruising formulas
BAF, TPA expansion, SDI, QMD, volume per acre, plot spacing — every formula with a clear explanation.
Wind risk (HDR)
Height-to-diameter ratio with species-specific wind stability ratings. Useful for leave-tree selection.
Growth & yield tables
Normal yield tables, site index curves, and CMAI for key western and southern species.
The math
Species-specific accuracy.
Published, peer-reviewed volume equations — the same models used across federal, state, and private forestry. The sources are named right in the app.
Scribner Decimal C, International ¼″, and Doyle log rules supported.
Give it a cruise.
Download it free, swing some BA plots, design a cruise, or check a reference, and see how far it gets you. Built for foresters, forestry technicians, and landowners.