Engineering Disclaimer

Last updated: October 4, 2026

Our tools help you work faster. They do not replace the judgment of a licensed engineer.

Engineering aids only

The calculators, apps, reports, and Ask RLN answers on rlncenterline.com are technical aids. They are not engineering advice, and they are not certified, signed, or sealed documents.

Verify before you rely on results

A licensed professional engineer must review and verify all results before they are used for design, construction, assessment, permits, or submittals. You are responsible for checking inputs, assumptions, loads, soil and site conditions, and the governing code requirements for your project.

Code references

Our tools may implement selected provisions of standards such as ACI, AISC, NSCP 2015, and the Australian NCC. A tool may not cover every provision, and codes are revised over time. Confirm the edition and the provisions that apply to your project, and check them against the official code documents.

Early access

Tools are offered free during early access. They may contain errors, change without notice, or be unavailable at times. Please report problems to info@rlncenterline.com.

Ask RLN

Ask RLN uses AI. Its answers can be incomplete or wrong. Do not treat them as professional advice, and check them before acting on them.

No warranty and limit of liability

The site and tools are provided "as is" and "as available," without warranties of any kind. To the fullest extent allowed by law, RLN Centerline Engineering is not liable for any loss, damage, cost, or claim arising from use of, or reliance on, the site, the tools, their results, or Ask RLN.