Commercial construction estimating
Commercial cost estimates, built trade by trade from your plans.
Move beyond a generic calculator. Korus accepts a floor plan or a full commercial plan set and separates documented details from assumptions before preliminary pricing.
- Floor plans or full sets
- 3 free packages
- Documented vs assumed
Finishes
MEP
Partitions
Existing conditions
Commercial scope
See the scope by trade, not a single unexplained total
Every commercial project type leans on different trades. Korus organizes preliminary scope and pricing so the result is easy to review.
Pick a project type
Scope mix by trade: Office
Illustrative- Demolition & prep10%
- Framing & drywall18%
- Finishes & flooring24%
- Millwork & casework8%
- HVAC16%
- Electrical & data20%
- Plumbing4%
What shifts: Ceilings, lighting and data cabling usually weigh heavily, while plumbing stays light. Mixes shown are for illustration. Your plans decide the real one.
Calculator vs plan-aware
Why a generic calculator is not a commercial estimate
A calculator multiplies area by an average rate. A plan-aware estimate shows its reasoning, line by line.
Korus · from your plans
- Demolition & prepSheet A1.0Documented
- Framing & drywallWall types on A2.1Documented
- Finishes & flooringNo finish scheduleAssumed
- MEP rough-inCarried by areaAllowance
- Roof & exteriorNot in uploadMissing
A range with reasons, not one unexplained total
Generic calculator
$ ———
One number. No drawings read, no scope, no assumptions shown.
Drag the handle, or use the arrow keys, to compare.
Plan-aware workflow
Add a drawing and watch assumptions turn into documented lines
Floor plans and full construction sets follow different estimating paths based on the information actually available. Toggle documents to see how each result is grounded.
Documents you upload
Scope ledger
1 / 8 lines documented
- Layout and areasDocumented
- Flooring and paintAssumed
- Doors and hardwareAssumed
- Framing and partitionsAssumed
- HVACAllowance
- Electrical and dataAllowance
- PlumbingAllowance
- Roof and site workExcluded
Sample project for illustration. Tags update as more drawings are included.
How it works
Three steps from drawings to a reviewable estimate
Upload what you have
A floor plan or a full commercial plan set, as PDFs or images. Related files count as one package.
Review scope by trade
Korus organizes a preliminary scope and price range by trade, tagged by how well your drawings support each line.
Compare finish concepts
Finish assumptions or documented schedules shape each concept and its preliminary price.
Questions
Commercial construction cost estimator questions
What the estimator does, what it costs, and where its limits are.
01How does a commercial construction cost estimator work?
You upload the plans you have, either a floor plan or a full commercial plan set. Korus reads them, organizes a preliminary scope by trade, and prices that scope as a range. Each line is labelled as documented, assumed, an allowance, excluded, or missing, so you can see what the number rests on.
02Can I estimate a commercial project from a floor plan alone?
Yes. With a floor plan, Korus reads rooms, areas and layout and fills the gaps with stated assumptions instead of false precision. You also get three layout and finish concepts to compare. A full plan set lets schedules and details drive the scope instead.
03What commercial plan files can I upload?
PDFs and plan images. Related files uploaded together, such as several sheets of the same project, count as one plan package.
04Is the commercial cost estimate final?
No. Results are preliminary and meant for budgeting, scoping and early conversations. They are shown as ranges and should be reviewed by a person before you rely on them for bidding or contracts.
05Is it free to try?
Yes. Verify your email with a six-digit code and you can submit three plan packages free, without needing a full Korus account.
06How is this different from a commercial cost calculator?
A calculator multiplies an area by a generic rate and returns one number. Korus works from your actual drawings, breaks the result into trades, and shows which parts are documented and which are assumed.
Free · 3 plan packages
Put your commercial plans through the estimator.
Verify your email and upload up to three plan packages. See scope by trade, preliminary ranges and finish concepts from your own drawings.