BOQ Builder | Project Mode, Quantities & Cost Totals

Project Mode & Bill of Quantities

Project Mode & Combined BOQ

Create a project, add calculations and items into sections, and produce a combined bill of quantities with costs, contingency and optional VAT.

1 Project

Current project

New project name

2 Project details

Project name

Client name (optional)

Location (optional)

Notes

3 Add an item

Section

Item description

Unit

Quantity

Waste %

Material unit rate

Labor unit rate

Combined Bill of Quantities

Visible columns

Contingency %

VAT %

Apply VAT

Result type: Approximate Cost Estimate

Formulas & Assumptions

Formulas used

Qty_with_waste = Qty × (1 + Waste%)Quantity including waste per item
Material cost = Qty_with_waste × Material rateMaterial cost
Labor cost = Qty_with_waste × Labor rateLabor cost
Row total = Material + Labor + EquipmentItem total
Subtotal = Σ Row totalsProject subtotal
Contingency = Subtotal × Contingency%Contingency
VAT = (Subtotal + Contingency) × VAT% — only if enabledVAT is applied only when enabled

Assumptions & reference values

Editable assumptionRates come from your own Price Book; no market prices are loaded automatically.
Editable assumptionVAT is never applied unless you explicitly enable it.
Default valueDefault contingency is 0% — adjust it to suit the project stage.

Notices: This result is intended for quantity estimation. Verify quantities against approved drawings and project specifications before procurement or construction.

This calculator provides quantity and preliminary cost estimation. Structural design, material specifications and final quantities must be verified against project drawings, specifications and applicable engineering standards.