Finding area in square feet

How do we find the model complete area in square feet of model and is there any query to pull the models with more in Area.

Your forum profile says you are using SketchUp 8 and a SketchUp for Web (Free) license.
This cannot be correct. (The first is a desktop edition, the latter a “cloud” edition.

Are you using the browser-based SketchUp for Web, or one of the desktop editions ?

It does help if your profile says what version of the operating system you are running SketchUp on.

With regard to your grpahics subsystem, you must have one. See …