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.

Caravan awning with arched windows and curtains, set up beside a white caravan on a grassy field with cloudy skies.

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.

Awning with open panels, attached to a caravan in a sunlit park area surrounded by tall green trees.

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.

Awning with annex attached to a caravan, positioned on grass with dense trees and forest foliage in the background.

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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