# How to measure openings ? {% hint style="success" %} **Equipment required :** a simple tape measure **Accuracy required :** 0.3 inch {% endhint %} {% embed url="" %} {% hint style="danger" %} **Measurements taken at ground level and at about 31.5 '' / 80 cm height** If your opening is not perfectly parallel, please indicate the widest measurement. {% endhint %} ### How to get a quote ? You can enter your information and the measurements of your openings in [this online form](https://www.flowstop.co/en/quote). You will then receive a personalized quote within 48 hours. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.flowstop.fr/general-information/how-to-measure-openings.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.