What is a Unit Price Analysis in Construction? Complete Guide 2026 + Examples

The Complete Guide to Unit Price Analyses (APU)

Unit price analyses are the building blocks of every construction budget. Whether you call them APU (Colombia), PU (Mexico), or Unit Cost Analysis (Chile/Peru), the concept is the same: a detailed breakdown of what it costs to complete one unit of construction work.

Components of an APU

1. Materials

All materials needed per unit, including waste factors:

Main materials (concrete, steel, brick)

Auxiliary materials (nails, wire, adhesives)

Consumables (water, fuel)

2. Labor

Worker costs per unit based on productivity:

Skilled labor (masons, electricians)

Unskilled labor (helpers)

Social benefits and charges

3. Equipment

Tools and machinery costs per unit:

Heavy equipment (cranes, excavators)

Light equipment (mixers, vibrators)

Hand tools (typically 3-5% of labor)

4. Indirect Costs

Overhead applied as a percentage:

Administration

Insurance and bonds

Profit margin

Common Mistakes in APU Calculation

Forgetting waste factors — always add 3-15% depending on material

Using outdated prices — update regularly

Wrong productivity rates — verify with real project data

Missing auxiliary materials — nails, adhesives, wire add up

Incorrect unit conversion — double-check m², m³, kg

OneEstimate's APU Database

With 10,700+ pre-calculated unit price analyses, OneEstimate is the most comprehensive APU database in Latin America. Each APU is verified and regularly updated.

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