Shutters are a fantastic window dressing with a range of benefits. They add a touch of style and elegance to your home whilst allowing you to seamlessly take control of the light and privacy.

However, when it comes to choosing the right shutters, it can be a little confusing, particularly when choosing the correct slat size for your shutters.

Window shutters have several panels (with the exception of (Solid Panel Shutters) and each panel features a rung of slats. Slats are also often referred to as louvres. They come in various sizes, so it can be puzzling to know which slat size is best for your window shutters.

Luckily for you, we are shutter experts. And we’re going to make it easy for you to choose the correct slat size for your shutters.

Factors To Consider When Choosing The Correct Size Slat For Your Shutters

When choosing the correct size slat for your shutters, there are a number of factors you need to take into consideration, including window size, window style, light and privacy control, tilt rods, home décor and personal preference.

Window Size

The size of your windows plays a big part in the size of your shutter slats. You should consider both the length of your windows and the depth. If your windows are not very deep, there may not be enough room for shutters with large slats to operate seamlessly.

If you have small windows, small slat sizes will work far better. For larger windows with deeper recesses, larger slat sizes will be ideal.

Home Décor

Shutters are so popular because they complement every type of home décor. Whether you are going for a contemporary and minimalistic theme, a rustic farmhouse theme or a Scandinavian chic theme, there will be shutters to suit your interior décor.

home decor should be considered when choosing the correct slat size for shutters

From our experience, customers with a modern home and contemporary décor often prefer larger slat sizes, whereas those going for a more traditional home décor usually prefer smaller slat sizes.

Larger slat sizes (76mm) tend to be our most popular slat size, possibly because they suit almost every home and blend beautifully with a variety of home decors.

However, the size of shutter slats you opt for is completely up to you and your personal taste!

Light And Privacy Control

The beauty of window shutters lies is the versatility they offer. Whether they are in the bedroom, lounge, dining room or kitchen, shutters enable you to effortlessly alter the light levels and privacy in your home.

All sizes of shutter slats offer complete privacy when closed and enable you to easily control privacy levels. However, larger slats tend to let in more light compared to smaller slats as they feature larger gaps between each slat. If you have a small room that requires a lot of natural daylight, you may want to opt for larger slat sizes.

Also, if you are going for a dark shutter, the dark shade will not reflect the light as well as a white shutter, so large slats letting in plenty of natural light will add a touch of balance.

Window Style

The style of shutter and size of shutter slat you opt for may also be influenced by the style of your windows. If your windows are “busy”, for example, if they feature lead, Georgian bars, stained glass, or frosting, you may prefer larger slats with bigger gaps. These will showcase your beautiful windows without preventing them from looking too busy.

To Rod Or Not To Rod

Window shutters are available with or without tilt rods. Our customers often find that shutters with smaller slats look even better when they feature a tilt rod.

You can also have a tilt rod with larger slats; however, many people prefer the simple, clean look that you get when you don’t have a rod.

smaller slat sizes are best for small windows

Slat Sizes At Shuttertec

Here at Shuttertec, we offer a variety of slat sizes to suit any window and home décor. Our three main slat sizes are 63mm, 76mm and 89mm, and we also have a smaller slat size at 47mm, which is ideal for a more traditional look.

If you are still unsure about which slat size to choose, why not speak to one of our experts?

Get In Touch

Here at Shuttertec, we supply beautiful bespoke shutters to Essex, London and Kent. If you are looking for shutters for your home, get in touch. You can contact us on 0800 023 5754 or email We are on the other end of the phone 6 days a week!

Or you can book an appointment online. We can discuss your shutter needs, measure your space, show you samples and answer any questions you may have.

We would love to hear from you. Alternatively, you can request our latest brochure here.