Construction estimating company for contractors, owners and designers
KNR Constructions is a construction estimating company that turns your drawings into quantity takeoffs, bid estimates and budgets for projects anywhere in the United States. Every line shows its unit, its measurement rule and the public data behind its price.
- Takeoffs and estimates by trade or for the whole building
- Labor priced from BLS wage data plus burden and productivity
- Excel workbook, PDF summary and marked-up drawings
- A fixed fee quoted before any work starts
What does a construction estimating company do?
A construction estimating company measures the quantities on your drawings, prices the material, labor and equipment for each item, and adds overhead, profit and contingency to reach a number you can bid or budget. KNR delivers that estimate as a working Excel file with the takeoff marked on your sheets.
Why contractors outsource estimating to KNR
Most bids are lost or won in the takeoff. A missed wall type, a wrong unit or an old material price moves the number more than any markup decision. An outside construction estimating company gives you a second set of eyes that measures every sheet, follows one set of rules and has no stake in the result.
KNR prices work the same way on every project. Quantities come first, measured by trade with the unit and rule written beside each line. Labor is built from published U.S. wage data, a stated burden and a productivity rate, so you can change any assumption and the estimate updates. Material lines are compared with the latest Producer Price Index before they go into a bid.
You can order a single trade such as concrete or drywall, a quantity takeoff without pricing, a bid estimate for a hard-bid package, or a budget estimate while the design is still moving.
From drawings to a number you can bid
The same five steps on every KNR estimate. Public U.S. data feeds the pricing step.
- Drawings and specsSheets, addenda, bid form
- Quantity takeoffUnit and rule on every line
- PricingMaterial, labor and equipment
- Estimator checkScope gaps, units, arithmetic
- Bid-ready estimateWorkbook, PDF, marked-up sheets
Construction estimating and takeoff services
137 services in six groups. Choose the scope you are bidding, or send the whole set and we will split it by trade and specification division.
Estimates and takeoffs
Whole-project estimates, quantity takeoffs, bid packages and estimating staff at every design stage.
Trade packages
Priced takeoffs for each trade, laid out the way the specification is written.
Building types
Homes, multifamily, commercial interiors, industrial buildings and public work.
Clients
Estimating built around how general contractors, trade contractors, owners and designers buy work.
Scheduling
CPM schedules in Primavera P6 and MS Project, resource loading and delay analysis.
Software
Takeoffs and estimates delivered inside the platform your team already runs.
What is inside every line of a KNR estimate
An estimate is only as good as its lines. Each line in a KNR workbook carries five things: the item, the quantity, the unit, the measurement rule and the unit cost split into material, labor and equipment. The example on the right shows how a single wall-board line is built.
Labor is usually the part that moves most between estimators, so we show it in full: hours per unit, the base wage, the burden and the loaded rate. If your crews run faster or slower, change the productivity figure and the line recalculates. Our labor cost estimating services apply the same build-up to every trade.
Quantities follow written rules: openings over a stated size are deducted, waste is added as a percentage per material, and every count can be traced to a sheet. That is what makes an estimate checkable during bid leveling instead of a number you have to trust.
Anatomy of one estimate line
Illustrative line: 5/8" gypsum board on walls, 2,520 SF
| Part | Build-up | Amount |
|---|---|---|
| Material | 2,520 SF × $0.62/SF | $1,562 |
| Labor | 2,520 SF × 0.017 hr/SF × $38.25/hr | $1,638 |
| Equipment | 2,520 SF × $0.03/SF | $76 |
| Line total | $3,276 |
The cost data behind our pricing
Two public U.S. Bureau of Labor Statistics data sets anchor every KNR estimate. They are refreshed when BLS releases new figures, and both are shown on the service pages for the trades they affect.
Material prices: change over 12 months
Producer Price Index, 12 months to September 2026. Brass = rose, green = fell.
Show as table
| Material | BLS series | 12-month change |
|---|---|---|
| No. 2 diesel fuel | WPU057303 | +115.2% |
| Copper wire and cable | WPU102502 | +30.0% |
| Steel mill products | WPU1017 | +27.6% |
| Aluminum mill shapes | WPU1025 | +24.1% |
| Lumber and wood products | WPU081 | +8.7% |
| Plastic construction products | WPU0721 | +4.6% |
| Flat glass | WPU1311 | +3.1% |
| Ready-mix concrete | WPU1333 | +2.3% |
| Gypsum products | WPU137 | +1.4% |
The Producer Price Index tracks what producers charge for materials such as lumber, ready-mix concrete, steel and copper wire. When a material has moved sharply, a price from an older job or supplier quote can be far from today’s market, so we flag those lines and check them before they go into a bid.
Hourly wages by trade
Bar = middle half of U.S. wages (25th to 75th percentile), dot = median. Latest BLS release.
Show as table
| Trade | 25th | Median | 75th |
|---|---|---|---|
| First-line supervisors, construction trades | $30.48 | $38.42 | $48.78 |
| Telecommunications line installers and repairers | $26.11 | $35.73 | $46.08 |
| Plumbers, pipefitters and steamfitters | $24.13 | $30.67 | $40.92 |
| Electricians | $23.76 | $30.38 | $40.36 |
| Structural iron and steel workers | $23.98 | $30.18 | $39.74 |
| Brickmasons and blockmasons | $24.57 | $29.87 | $38.15 |
| Sheet metal workers | $22.99 | $29.71 | $39.24 |
| HVAC mechanics and installers | $23.25 | $29.33 | $37.05 |
| Carpenters | $23.32 | $29.12 | $36.94 |
| Security and fire alarm systems installers | $22.99 | $28.88 | $35.43 |
Occupational Employment and Wage Statistics give the wage spread for each trade. We start from these figures, apply burden for taxes, insurance and benefits, and adjust for local and prevailing-wage requirements on the project.
Match the estimate to your design stage
The right estimate depends on how far the drawings have come. Early on, a square-foot or systems estimate tells you whether a project is worth pursuing. With construction documents, a line-item estimate supports a hard bid. Asking for the wrong kind wastes money in one direction and adds risk in the other.
- Class 5, concept screening: conceptual estimate guide
- Class 4, feasibility: cost planning and feasibility studies
- Class 3, budget authorization: budget estimating services
- Class 2, control or bid: bid estimating services
- Class 1, check estimate or bid: estimate review and second opinion
Not sure which you need? Send what you have. We will tell you what class of estimate the drawings can support before quoting.
How accurate is an estimate at each design stage?
Typical accuracy range by AACE estimate class. Solid = narrow end, pale = wide end. Green = final cost below the estimate, brass = above.
Show as table
| Class | Used for | Design maturity | Low side | High side |
|---|---|---|---|---|
| Class 5 | Concept screening | 0–2% | -20% to -50% | +30% to +100% |
| Class 4 | Feasibility | 1–15% | -15% to -30% | +20% to +50% |
| Class 3 | Budget authorization | 10–40% | -10% to -20% | +10% to +30% |
| Class 2 | Control or bid | 30–75% | -5% to -15% | +5% to +20% |
| Class 1 | Check estimate or bid | 65–100% | -3% to -10% | +3% to +15% |
Who works with our construction estimating company
The same estimate structure, set up around how each client buys work.
General contractors
Cover more bids without adding staff. Get every division priced to the same rules so subcontractor quotes can be leveled against it.
Trade contractors
Price your own scope from the full set, with labor hours and crew assumptions you can check against your field experience.
Owners and developers
Test a project before you commit: square-foot budgets early, then a detailed estimate as drawings develop.
Architects and designers
Keep the design inside the client’s budget with cost checks at each design milestone and priced alternates.
Home builders
Price plans and options before they go to buyers, with framing, envelope and finish quantities taken from your drawings.
Small contractors
Get a professional takeoff for the jobs that matter, without a full-time estimator on payroll.
How to order an estimate
Four steps from your first message to a finished workbook.
- Send the setUpload drawings, specifications and addenda, or share a plan-room link, with the bid date and the trades you need.
- Get a fixed feeAn estimator reviews the set, confirms scope and replies with a fee and a delivery date.
- We measure and priceTakeoff by trade, pricing with BLS-based labor and checked material lines, then a second-estimator review.
- You receive the filesWorkbook, PDF summary and marked-up sheets. Addenda are priced as revisions with the changed lines flagged.
Free estimating tools
Calculators and templates you can use on your own job.
Estimating guides
Methods, worked examples and the math behind them.
From the blog
Bids, budgets and estimate types explained.
Questions about working with a construction estimating company
What does a construction estimating company do?
A construction estimating company turns drawings and specifications into quantities and costs. It measures each item, prices material, labor and equipment, adds the markups a contractor or owner needs, and delivers an estimate that supports a bid, a budget or a design decision.
Who hires a construction estimating company?
General contractors use one to cover bid volume, trade contractors use one for divisions they bid often, and owners, developers and architects use one for budgets before design is finished. Home builders use estimates to price plans before they are released to buyers.
What do I need to send for an estimate?
Send the drawing set (PDF, DWG or DXF), the specifications, every addendum, the bid form if there is one, the bid date and the trades you want priced. A plan-room link works too. Missing sheets are listed as clarifications in the estimate.
How is KNR’s pricing built?
Labor starts from U.S. Bureau of Labor Statistics wage data for each trade, plus burden for payroll taxes, insurance and benefits, divided by a productivity rate. Material lines are checked against the BLS Producer Price Index so older prices are not carried into a current bid. An estimator reviews every line.
What is the difference between a quantity takeoff and an estimate?
A quantity takeoff lists how much of each item the drawings show, with units and measurement rules. An estimate adds unit costs, labor hours, equipment, markups and contingency to those quantities to reach a price.
How accurate is a construction estimate?
Accuracy depends on how complete the design is. A concept-stage estimate can land far from the final cost, while an estimate from complete construction documents is much tighter. The estimate-class chart on this page shows typical ranges for each stage.
What will I receive?
An Excel workbook with quantities, unit costs and extensions, a PDF summary with clarifications and exclusions, and marked-up drawing pages that show what was measured.
How much does a construction estimate cost?
The fee depends on the number of sheets, the trades included and how many alternates or addenda must be priced. KNR quotes a fixed fee for each project after reviewing the plans, before any work starts.
Send your drawings and get a fixed fee
Upload the set and tell us the bid date. An estimator reviews it and replies with a price and delivery date before any work starts.