Getting the size wrong on an AC cover is a common (and avoidable) mistake - too small and it won't fit over the unit, too large and it looks bulky and doesn't seal against wind-driven rain properly. That's why having a proper AC cover sizing guide is essential. In this article, we'll show you how to measure your outdoor unit correctly in under five minutes.
What to measure
To ensure the right fit, you need three key measurements: the width, depth, and height of your outdoor condenser unit. Make sure to include any brackets or piping that protrude from the main body of the unit. Measure the widest, deepest, and tallest points - not just the casing.
- Width: Measure the unit at its widest point, left to right.
- Depth: Measure from front to back, including any brackets or pipework.
- Height: Measure from the base to the highest point, including any raised vents or fan housing.
Now compare your measurements to the max recommended condenser size in the table below. It already allows about 100 mm of clearance around the unit, so there is nothing to add. That airspace is vital, because the unit needs room to breathe once it's covered and a tight fit can choke the airflow it needs to operate effectively.
Matching your measurements to our sizes
Compare your outdoor unit to the max recommended condenser size. The cover size is the outside size of the finished cover.
| Size | Cover size (W x D x H) | Max recommended condenser size (W x D x H) |
|---|---|---|
| Small | 900 Γ 650 Γ 700 mm | 800 Γ 550 Γ 600 mm |
| Medium | 1080 Γ 650 Γ 800 mm | 950 Γ 550 Γ 700 mm |
| Large | 1100 Γ 650 Γ 1000 mm | 1000 Γ 550 Γ 900 mm |
| Extra Large | 1300 Γ 650 Γ 1080 mm | 1200 Γ 550 Γ 1000 mm |
- Small: compact single-split units, commonly found on apartment balconies and townhouses.
- Medium: suitable for standard single or twin-split units on a typical family home.
- Large: accommodates bigger multi-fan condensers or larger single-split units.
- Extra Large: designed for commercial-grade condensers, ducted systems, and large multi-split setups.
Don't forget airflow clearance
Every Komposite cover uses an engineered vent design to ensure the outdoor unit can effectively draw and expel air when covered. That is why the max recommended condenser size for each cover leaves about 100 mm of clearance around the unit. If you are between two sizes, go with the larger one.
Installing your cover
Once your cover arrives, assembly takes about 20 minutes with a pop rivet gun and a drill. Watch our AC cover installation guide for the step by step animation and written steps, or read the full article: How to Install an Aircon Cover: Video and 9 Easy Steps.
Still not sure?
If you're still unsure which size to order, you can send us a photo of your unit along with a tape measure against it via WhatsApp at 067 987 1330. Our team will gladly help you determine the correct size to ensure a proper fit. Alternatively, you can browse our full AC cover range here.
