How to Measure Caravan Awnings
Think measuring Caravan Awnings is just “grab a tape and go”? Not quite. You’ll need the right tools, a steady hand, and a keen eye for curves, rails, and sneaky door hinges. Short answer: measure the awning rail length, height from ground, and check for obstructions. Keep reading—your future self will thank you.
Measuring for a Full Caravan Awning: The A-Measurement Explained
What is the 'A-Measurement' and Why is it so Important?
Getting the right fit is essential. Caravan awnings come in different sizes and styles to suit various layouts and preferences.
For full awnings, the A-measurement is the key figure that helps ensure your awning fits securely and stands up to the weather.

Understanding the A-Measurement for a Secure and Weatherproof Fit
The A-measurement refers to the distance from the ground, up and around your caravan’s awning rail, then back to the ground on the other side.
This creates a sealed connection that prevents wind and rain from getting in, while ensuring the awning sits properly.
Finding Your A-Measurement: Your Caravan's Handbook vs. Manual Measurement
You might find your A-measurement listed in your caravan’s handbook. If it’s not there, you’ll need to measure it yourself.
Using the right tools and method makes the process simple and accurate.
A Step-by-Step Guide to Measuring Your Caravan's A-Measurement
The Tools You'll Need: String, Tape Measure, and a Tent Peg
To get an accurate result, you’ll need a few items: a steel tape measure, ladder, and notepad. A flexible tape or piece of string helps when tracing curves.
A tent peg can be useful for anchoring your starting point.
The Measurement Process: From the Ground, Around the Rail, and Back Again
First, make sure your caravan is on a level surface. Start by tying the string to a tent peg at ground level beneath one end of the awning rail.
Carefully follow the rail’s path with the string, keeping it snug but not too tight. Then bring it down to the ground at the other end and measure the full length.
This is your A-measurement.

Common Mistakes to Avoid When Measuring
Many get caught out by curves and contours. Use a flexible tape or string instead of rigid tools for better accuracy.
Avoid letting the tape twist or sag. Always account for doors, windows, and external fixtures.
Lastly, double-check your result against the manufacturer’s guide.
Choosing the Right Full Awning with Your A-Measurement
Understanding Awning Size Ranges
Most manufacturers provide sizing charts that convert your A-measurement into an awning size. These ranges make choosing a compatible product much easier.
Always check the brand-specific chart to avoid errors.
What to Do if Your Measurement is Between Sizes
If you land between two sizes, go for the larger one. A slightly larger awning gives more flexibility and better coverage.
It also allows for minor height differences in uneven terrain.
Measuring for a Porch or Roll-Out Awning: A Different Approach
How to Measure for a Caravan Porch Awning
Key Measurements: Height and Straight Rail Length
Porch awnings are designed to cover only part of your caravan’s side, usually the door area. You’ll need to measure the straight section of the awning rail where the porch will attach.
Also measure the height from the ground to the rail for a good fit.
Important Considerations: Windows, Doors, and Vents
Obstructions like doors and windows can interfere with the fit. Make a note of these when measuring, and either avoid those areas or select a design that works around them.

How to Measure for a Roll-Out Caravan Awning
Measuring from Arm to Arm: The Correct Technique
When measuring for a roll-out awning, only measure from one arm to the other. That’s the correct method—nothing else.
Don't Measure the Vinyl: A Common Pitfall
One common mistake is measuring the fabric (vinyl) of the awning. This gives the wrong size.
Stick to the arm-to-arm method for a proper match with replacement parts or accessories.
Measuring for Awning Accessories
How to Measure for Anti-Flap Kits and Rafters
For anti-flap kits, measure the distance between your awning’s support arms. This ensures the kit can attach securely and reduce movement.
For rafters, refer to the width and ceiling height of your awning setup to select the right size.
Measuring for Privacy Screens and Annexes
Privacy screens require a height measurement from the awning edge to the ground. For annexes, measure the available width, depth, and height, while keeping obstructions in mind.
Check the product specs to confirm compatibility.
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