BUILDATECH

Free tools for NSW builders

Quick calculators for the paperwork side of a building job. No sign-up. Everything runs in your browser, and nothing you enter is sent anywhere.

NSW working days calculator

Add working days to a start date, or count working days between two dates. Skips weekends, NSW public holidays for 2026–2028 and your Christmas shutdown. Saturdays optional. Use it for programs, notice periods and EOT claims.

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Progress payment calculator

Enter the contract price and stage percentages to see each payment incl. and excl. GST. Warns you if the deposit is over 10% or the stages don’t add up to 100%.

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NSW Builder Admin Pack

Eight Excel and Word templates: construction program Gantt, progress payments & variations, site diary & delay log, variation form, pre-contract checklist, SOP Act payment claim and a PC & defects checklist.

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These tools give general information only and are not legal or financial advice. Check your contract and get advice for your situation.

Construction Gantt app icon

Construction Gantt

iPhone, iPad and Mac · English and Simplified Chinese
View on the App Store

Plan the whole job on a Gantt chart that skips weekends and public holidays. Change one task and the tasks after it move too. Run the site diary with photos and weather, and keep the team on the same schedule.