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AACE 18R-97

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Cover labeled Construction budget, with Class 5, Class 3, 50-200, and 80-130, beside a blank pad and a closed folder.

Costs & Planning October 18, 2026 5 min read

Construction Budget Guide: Class the Estimate First

A construction budget fails when a screening figure is treated as authorization. On a base of 100, the wider Class 5 ends are 50 and 200. The wider Class 3 ends are 80 and 130.

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