* Check the sticker: Look for a sticker on the driver's side doorjamb or inside the glove compartment. This sticker will list the GVWR along with other important weight information.
* Consult the owner's manual: The owner's manual for the vehicle will also specify the GVWR.
* Use a VIN decoder: You can use a VIN decoder (many are available online) to find specifications, including GVWR, for your specific vehicle using its Vehicle Identification Number (VIN).
Without knowing the specific year and model of the Ford Focus, I cannot provide the GVWR.