← Geocellular Sub-base System

Complete-System Cost Worksheet

Compare two fully specified options for the same area, loading, drainage duty and service period. Enter totals in one currency and price basis; a blank field means missing information, while zero means you have deliberately excluded that cost.

Cost categoryOption A totalOption B total
Product supply
Freight and handling
Excavation and disposal
Supporting layers and protection
Drainage fittings and access
Installation and inspection
Maintenance over the selected period
Complete every field to compare totals.

How to use the result

  • This adds your entered amounts; it is not a market quotation or a product savings forecast.
  • For discounted lifecycle comparisons, calculate both options on the same basis before entering amounts.
  • Keep taxes, contingency and replacement allowances consistent and document what each category includes.

The example uses arbitrary cost units only. Method inputs informed by the STEP lifecycle-cost framework.

Discuss your project with AQUA Rain Water →

AQUA Rain Water · Inputs stay in this page. Nothing is submitted automatically.