Terms of Use

Last updated: September 25, 2026.

Use of the tools

Toolbox provides general-purpose calculators, converters, checklists and guides for convenience and planning. Outputs are based on the information entered and the assumptions described on each page.

As-is service

The resources are provided on an “as is” and “as available” basis. No guarantee is made that a result is complete, error-free, suitable for a particular project or compliant with a contract, code, lender requirement, regulation or professional standard.

User validation

You remain responsible for checking numerical values, formulas, units, inputs, generated files, technical assumptions and downstream decisions before relying on an output. Financial, legal, medical, safety-critical, engineering and regulatory decisions require appropriate independent review.

Availability and changes

Tools may be improved, replaced or discontinued. Features and third-party dependencies can change over time.

Related policies

See the Privacy Policy and Cookie Policy for information about browser processing, analytics, advertising and cookies.