ProjectQty is an independent set of construction quantity tools built for U.S. DIY homeowners first and small contractors second. The goal is simple: make the number between a tape measure and a supplier conversation easier to inspect.
Who ProjectQty serves
ProjectQty is designed for U.S. DIY homeowners planning a purchase and small contractors preparing an early quantity check. Imperial measurements are the default, metric input is supported, and every result is intended to start a supplier or professional conversation—not replace one.
Editorial standards
Every calculator must expose its formula, editable assumptions, worked example, ordering rule, and limits. ProjectQty keeps quantity separate from price, starts uncertain defaults blank or editable, and does not let merchant availability, commissions, or advertising change a calculation.
Source governance
External facts are accepted only for a declared claim and scope. Standards bodies support conversions, qualified manufacturer documents support only the named product and version, and a fallback cannot silently broaden a product-specific fact into a universal rule. The public source register records authority, effective date, review date, next review, and evidence status.
What ProjectQty is not
It is not a contractor marketplace, professional estimator, structural design service, building-code authority, supplier, or live nationwide pricing feed. It does not collect project addresses or sell quotes.
For independent reviewers
Reviewers can reproduce the published examples, inspect the assumptions behind each result, and follow the source trail without creating an account. The calculation validation page is first-party evidence, not an independent review. ProjectQty does not claim an endorsement, rating, or independent review until one is publicly verifiable.
- Open the independent review brief
- Read the methodology
- Review calculation validation
- Inspect the source register
- Browse all calculators
Launch scope
The first release is U.S. English, uses imperial measurements by default, supports metric input, and includes 41 focused calculators. Expansion depends on index quality and actual user value—not page count.