Which slat size is right for my shutters?

When you’re designing your shutters, you will be presented with various slat size options at the checkout. Each size brings different benefits to your window, so let’s discuss the things to consider before making your final selection.

Note, we use the terms ‘slat sizes’ and ‘louver sizes’ interchangeably throughout this guide, both mean the same thing.

Can my window accommodate any louver size?
In short, no. Each louver size has a minimum depth requirement depending on the window frame you’re fitting your shutters to. Installing louvers that are too large for your window could result in the slats hitting against an obstruction (eg. Alarm sensor, window handle or the glass). Luckily our shutter measuring guide outlines the range of slat sizes available to you depending on your window, so you’ll find the perfect fit. If you find that you don’t have enough depth for the louver size you want, simply give our shutter experts a call. They will be more than happy to find a solution that is right for you.

How does the slat size affect privacy and light?
All our slats offer equal privacy when they’re closed (keep in mind they close flat in the upwards direction only). However, when the slats are opened, the larger the slat size the more light will enter the room. If acquiring maximizing light is important to you, larger slats is something you should consider.


Modern vs. Classic?
Wider louvers look modern, so if you are looking to complement a clean cut modern furnishing in a kitchen, living space, bedroom or bathroom going for a wide louver is the way to go. If you have an older home rich in architectural detail and classic furnishings, then a smaller slat for shutters is best. Smaller slats are a perfect complement to a more traditional classic décor.

What louver size goes best with a particular window size?
Tall Windows- The larger the window height, the larger the louver should be. Larger slat sizes will achieve a proportional clean-cut look. If you opt for smaller slats, your panels will house more slats resulting in a busier look. Although it’s completely up to you, going with larger slats is the best option for windows with large heights.

Small Windows- The smaller the window height, the smaller the slat size should be. What you want to avoid is selecting the largest slat size for a small window. This could result in 1-2 slats in the panel which is not aesthetically pleasing. Be sure to ask our shutter experts on what they feel would be the most appropriate slat size for your window. They are more than happy to help.

full height shutters

Which louver size goes best with a particular shutter style?
Whether Full Height, Café Style or Tier on Tier, any slat size will work in optimizing the look of your home.

Should my shutter color selection influence my slat size?
All our slat sizes look great whether they’re in a neutral or a bolder shade. But if you do want to make an impact with a vibrant color, we’d say wider slats will maximize the statement.

Should anything else influence my slat size choice?
Shutters are super simple to keep clean whether they have large or small slats, so there’s little in it, but larger slats are number one if every second counts when you’re cleaning

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