Unit Price Estimate Template
Download a unit price estimate template to calculate construction costs by quantity, rate, labour, materials, equipment, overhead, profit, and tax.
Price Construction Work by Measured Quantity
A unit price estimate calculates the expected cost of construction work by multiplying a measured quantity by an agreed rate. Contractors commonly use unit pricing for work measured by length, area, volume, weight, time, or individual item.
This template helps subcontractors and specialty contractors build consistent unit rates for labour, materials, equipment, subcontractors, overhead, and profit. It can be used for bidding, change-order pricing, schedule-of-rates work, and projects where final quantities will be confirmed during construction.
What Is a Unit Price Estimate?
A unit price estimate assigns a price to each measurable unit of work. The estimated amount is calculated by multiplying the expected quantity by the unit price. For example, a concrete contractor may price slab placement per square metre, an excavation contractor may price spoil removal per cubic metre, and an electrical contractor may price device installation per item.
The final contract amount may increase or decrease when actual measured quantities differ from the estimate. The estimate should therefore define the measurement method, unit of measure, inclusions, exclusions, and treatment of quantity changes.
When to Use a Unit Price Estimate
- Final quantities cannot be confirmed before work begins.
- Work can be measured using clear, repeatable units.
- The project includes multiple similar installation items.
- A schedule of rates is required for tendering or ongoing maintenance work.
- Change-order work will be priced using agreed unit rates.
- The customer wants transparent pricing for quantity increases or reductions.
- Progress billing will be based on measured completed quantities.
Who Should Use This Template?
The template is intended for subcontractors, specialty contractors, estimators, project managers, quantity surveyors, operations managers, and business owners who price work by measurable units.
It can be adapted for concrete, excavation, grading, paving, roofing, painting, flooring, drywall, electrical, plumbing, HVAC, landscaping, fencing, masonry, fire-protection, demolition, and other specialty trades.
What the Estimate Should Include
| Section | Purpose |
|---|---|
| Contractor and Customer Details | Identifies the parties, project, site, contacts, and estimate reference. |
| Scope and Measurement Basis | Explains how quantities will be measured and which drawings or specifications apply. |
| Unit Price Schedule | Lists each work item, quantity, unit of measure, unit rate, and estimated amount. |
| Labour Build-Up | Calculates crew hours, labour classifications, productivity, and labour cost per unit. |
| Material Build-Up | Records material quantities, waste factors, purchase costs, and material cost per unit. |
| Equipment and Subcontractor Costs | Allocates plant, tools, rentals, and specialist costs to each unit of work. |
| Overhead and Profit | Adds indirect costs and the contractor's target return to each unit rate. |
| Allowances and Minimum Charges | Identifies small-quantity, mobilisation, setup, or minimum-order pricing. |
| Estimate Summary | Totals the expected quantities, unit prices, tax, alternates, and estimated contract value. |
| Terms and Acceptance | Documents rate validity, quantity adjustments, exclusions, payment terms, and approval. |
How to Use the Template
- Enter the contractor, customer, project, and estimate information.
- Define the work items and select the correct unit of measure for each item.
- Estimate the expected quantity from drawings, site measurements, or tender documents.
- Calculate labour hours and crew cost required to complete one unit.
- Add materials, waste, delivery, equipment, subcontractor, and other direct costs per unit.
- Apply overhead, contingency where appropriate, and target profit.
- Multiply the unit rate by the estimated quantity to calculate each line-item amount.
- State how actual quantities will be measured and approved.
- Review minimum charges, exclusions, assumptions, and rate validity before issuing the estimate.
An excavation contractor prices trench excavation by cubic metre. The unit-rate build-up includes operator labour, excavator time, banksman labour, fuel, spoil loading, disposal fees, mobilisation allocation, overhead, and profit. The estimated quantity is 180 cubic metres, but final billing is based on jointly verified site measurements.
Best Practices for Unit Price Estimating
- Use a unit of measure that can be verified consistently in the field.
- Define whether measurements are based on drawings, installed quantities, delivery records, or site surveys.
- Build unit rates from current labour, material, and equipment costs.
- Use realistic productivity rates for the crew, site conditions, and work sequence.
- Include waste, cutting, laps, breakage, testing, and cleanup where applicable.
- Account for mobilisation, setup, supervision, access, and minimum-order charges.
- Separate unusually difficult work from standard unit rates.
- State how quantity overruns, underruns, and remeasurement will be handled.
- Record the assumptions used to calculate each rate.
- Compare estimated productivity with actual production after the job.
Common Unit Pricing Mistakes
- Using a unit that cannot be measured consistently
- Failing to define what the unit rate includes
- Using labour productivity from a different type of project
- Leaving waste, delivery, testing, or disposal out of the rate
- Spreading mobilisation over an unrealistic quantity
- Failing to include minimum charges for small quantities
- Applying overhead and profit inconsistently
- Using outdated supplier or equipment rates
- Ignoring difficult access, phasing, congestion, or restricted working hours
- Billing estimated quantities without confirming actual completed work
Frequently Asked Questions
How is a unit price calculated?
A unit price is calculated by adding the labour, material, equipment, subcontractor, and other costs required to complete one unit of work, then applying overhead and profit according to the contractor's pricing method.
What units of measure can be used?
Common units include each, linear metre, square metre, cubic metre, kilogram, tonne, litre, hour, day, and lump-sum item. The selected unit should match how the work will be measured and verified.
What happens if the actual quantity changes?
The final amount is usually calculated using the agreed unit rate and the approved actual quantity. The estimate or contract should explain how quantities will be measured and whether rates can be adjusted for major quantity changes.
Should mobilisation be included in the unit price?
Mobilisation can be included in the unit rate, priced as a separate item, or recovered through a minimum charge. The chosen method should be clearly stated so the cost is not missed when quantities change.
Can unit prices be used for change orders?
Yes. Pre-agreed unit rates can simplify change-order pricing when additional or reduced work can be measured using the same scope and conditions. Adjustments may still be required when access, sequence, or working conditions differ.
Should internal unit-rate calculations be shown to the customer?
Usually, the customer-facing estimate shows the work description, estimated quantity, unit, unit price, and total. Detailed labour, material, equipment, overhead, and profit calculations can remain in an internal worksheet.
Use Consistent Rates and Verifiable Quantities
A reliable unit price estimate combines a clear measurement method with a complete cost build-up. Each rate should account for the resources, conditions, and commercial requirements needed to complete one measurable unit of work.
A spreadsheet provides a practical way to develop and review unit rates. As estimating activity grows, SimplySub can help subcontractors organise estimates with customer records, jobs, change orders, invoices, expenses, and job-cost information.