Thanks for your post. You are able to set grid spacing according to your needs within your Settings menu. This Help Center article about the Lucidchart iOS 12 app shows how you can access this page. Additionally, the floor plan library does include a scale tool that allows you to set the default unit as meters or feet for your scale, and you can then set your scale to the appropriate proportions in those units. However, this is currently only available in the browser version of Lucidchart. I hope this helps!