Choosing the right size caravan awning comes down to taking a few key measurements from your van before you buy. Whether you're after a full awning or a porch awning, getting your measurements right first time will save you the hassle of returns and make sure you end up with a snug, weatherproof fit. This guide walks you through how to measure for both awning types.
How to Measure for a Full Caravan Awning
Full awnings for caravans are sold in numerical sizes, so the first step is finding your caravan's correct measurement, known as the A-measurement.
To find this, measure ground-to-ground around your caravan through points A-B-C, following the awning rail along the side of the van. This total measurement in centimetres is your A-measurement, and it will fall within a specific awning size band.
If you're not confident measuring this yourself, get in touch with your caravan's details and we can help match you to the correct awning size from our database.
How to Measure for a Porch Awning
Porch awnings are also measured in centimetres, but use a different method to full awnings since they only cover part of the side of your vehicle.
Length (A): Measure the length of the straight edge of your caravan or motorhome. This is the maximum size porch awning that will fit your vehicle — you can usually size down, but not up.
Height (B): Measure the height of your awning rail from the ground. Some porch awnings are designed for specific height ranges, so this measurement helps confirm you're choosing a compatible model.
Full Awning vs Porch Awning: Which Do You Need?
If you want maximum living space and plan to use your awning as an extension of your caravan for long stays, a full awning is usually the better choice, since it runs the entire length of your van. If you're looking for a lighter, quicker-to-pitch option, ideal for shorter trips or as extra porch/storage space, a porch awning is typically more practical and easier to handle solo.
Frequently Asked Questions
What is an A-measurement?
The A-measurement is the total ground-to-ground distance around your caravan, following the line of your awning rail. It's the key measurement used to determine which numerical awning size will fit your van.
Can I use a porch awning bigger than my measurement?
No — the length you measure along the straight edge of your vehicle is the maximum size porch awning that will fit. Sizing up isn't possible, but most ranges offer smaller sizes if you'd prefer more clearance.
What if I'm not confident measuring myself?
Get in touch with as much information about your vehicle as possible, and our team can help match you to the correct awning size using our database.
Still unsure which awning size is right for your caravan? Get in touch with our team with your vehicle's measurements and we'll recommend the best options for you.