Getting a new RV awning replacement is no mean feat – especially when taking into account the factors you need to consider. The main thing is to check the dimensions of your current awning, as this will give you the most accurate measurements. If, however, your previous awning has already been thrown away, or you are looking for a new trailer awning, you can always check with the manufacturer. They will have a full list of compatibility and be able to give you the precise inches and feet required.