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Head-to-head · Earthwork Estimating Software

Kubla Cubed vs SiteWorx/OS

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Kubla Cubed #3 in Earthwork Estimating Software 7.9/10 Free plan · 14-day trial Free planFree trial✓ 1 of 3 features Visit Kubla Cubed
SiteWorx/OS #5 in Earthwork Estimating Software 7.9/10 14-day trial Free trial✓ 0 of 3 features Visit SiteWorx/OS

Kubla Cubed leads on 1 check, SiteWorx/OS on 0, and 2 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Free planonly Kubla Cubed
  • Free trialboth
  • Most featuresKubla Cubed · 1 of 3

Kubla Cubed and SiteWorx/OS score identically on our rubric (7.9 out of 10) for earthwork estimating software; Kubla Cubed sits at #3 and SiteWorx/OS at #5 in our editorial ranking, so the choice comes down to fit.

Kubla Cubed offers free plan; SiteWorx/OS doesn't.

Kubla Cubed is the better fit for small teams seeking free terrain and volume modeling. SiteWorx/OS is the better fit for small contractors estimating complete sitework quantities.

  • Kubla Cubed fits best

    Small teams seeking free terrain and volume modeling

  • SiteWorx/OS fits best

    Small contractors estimating complete sitework quantities

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Side by side

Feature Kubla Cubed 7.9/10 Visit ↗ SiteWorx/OS 7.9/10 Visit ↗
At a glance
Editor score 7.9 7.9
Ranking #3 in Earthwork Estimating Software #5 in Earthwork Estimating Software
Best for Small teams seeking free terrain and volume modeling Small contractors estimating complete sitework quantities
Pricing model Free plan + paid Paid
Starting price — $199/yr
Free plan ✓ (best) —
Free trial 14 days 14 days
Free trial length 14 days 14 days · no card needed
Deployment Desktop Desktop
Platforms Windows Windows
Support Community, Email Email, Phone, Docs
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market
Features Kubla Cubed 1/3 · SiteWorx/OS 0/3
Cut-fill analysis ✓ (best) Not checked yet
Material cost database — Not checked yet
Bid templates Not checked yet Not checked yet
Specs
Takeoff method Both Not checked yet
Plan input formats Mixed Not checked yet
Included projects Not checked yet Not checked yet
Our review
Pros
  • Free plan never expires and supports basic terrain and cut-and-fill work
  • TIN-based phased modeling handles swell, compaction and formation adjustments
  • Imports PDF, DWG/DXF, LandXML and survey data; exports reports and CAD
  • Calculates cut, fill, sub-grade, trench, and topsoil quantities
  • Creates existing and proposed 3D surfaces from drawings
  • Exports results in Excel, Word, PDF, DWG, and CSV
Cons
  • Windows-only desktop deployment limits cross-platform access
  • Free edition has limited features and works as a project reader
  • No material cost database for cost-based estimating
  • Runs on Windows workstations only
  • Annual rental starts at $1,499 per year
  • The perpetual license costs $2,999 upfront
Our verdict

Kubla Cubed is Windows desktop software for earthwork contractors, estimators, quantity surveyors and civil engineers. It imports site information from PDF and CAD drawings, LandXML, survey points and other data, then creates existing and…

Read the review →

SiteWorx/OS is desktop takeoff and estimating software from Vertigraph, Inc. for excavation, grading, site development, and underground utility contractors. It is aimed at small and mid-market teams estimating complete sitework quantities,…

Read the review →
  1. Kubla CubedEarthwork Estimating Software 7.9Free plan · 14-day trial
  2. SiteWorx/OSEarthwork Estimating Software 7.914-day trial

Strengths and trade-offs

  • Kubla Cubed — where it wins

    • Free plan never expires and supports basic terrain and cut-and-fill work
    • TIN-based phased modeling handles swell, compaction and formation adjustments
    • Imports PDF, DWG/DXF, LandXML and survey data; exports reports and CAD

    Where it doesn't

    • Windows-only desktop deployment limits cross-platform access
    • Free edition has limited features and works as a project reader
    • No material cost database for cost-based estimating
  • SiteWorx/OS — where it wins

    • Calculates cut, fill, sub-grade, trench, and topsoil quantities
    • Creates existing and proposed 3D surfaces from drawings
    • Exports results in Excel, Word, PDF, DWG, and CSV

    Where it doesn't

    • Runs on Windows workstations only
    • Annual rental starts at $1,499 per year
    • The perpetual license costs $2,999 upfront

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update