Head-to-head · Earthwork Estimating Software
Kubla Cubed vs 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 |
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| Cons |
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| 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 → |
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
- Kubla Cubed7.9/10 · Free plan · 14-day trial
Free, terrain-focused earthwork estimating with phased cut-and-fill modeling.
Visit Kubla CubedFull verdict → - SiteWorx/OS7.9/10 · 14-day trial
SiteWorx/OS covers detailed sitework takeoff, but requires a Windows workstation and paid license.
Visit SiteWorx/OSFull verdict →
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All earthwork estimating software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update





