How are projector screens measured

Projector screens can come in many sizes and shapes, but they all have in common that they are measured differently than regular size dimensions. This guide will explain how to measure your projector screen to make sure it fits appropriately in the room you want to use it in, so you’ll be able to watch movies and play video games on your home theatre set up without any annoying distractions or problems with the video not filling the whole screen up.

The Basics

The size of your projector screen is based on its width, height and diagonal length. The standard unit of measurement for all three is in inches. Each dimension must be divisible by 16 (since there are 16 picture elements, or pixels, in one inch). 

So if you’re purchasing a screen for use with a projector with an image resolution of 1280 x 720 pixels, your screen’s height should be no higher than 96 inches.

Diagonal Distance

The diagonal measurement of a projector screen refers to its width, which is measured in inches or centimetres. This measurement helps determine how much space it will take up in your room and gives you an idea of how big you can go when setting up your home theatre. 

It’s usually written as DIA (DIA: 120) or DIA (165cm). When shopping for a projector screen, keep in mind that its diagonal measurements may be larger than those on older TV sets.

The Height

The typical height for a projector screen is about five feet. To ensure that every seat in your classroom has an unobstructed view, you want to ensure that your projector and screen are roughly at eye level or slightly below eye level. 

Most teachers will set up their projectors in front of their desks. It should position your projector and screen slightly above eye level about four or five feet high and works well for many classrooms.

Choose a Screen Type

Whether you’re looking for professional projector screens or standard screen material, it’s essential to know precisely what screen you want. Since there are so many types, it’s best to consult with a specialist and determine which screen will work best for your business and venue. For example, if you plan on presenting outdoors, durable vinyl screens can be used in any weather.

Add Further Details About the Screen Type

There are two types of projector screens, fixed frame and motorized. Fixed frame screens come in both standard and high-gain varieties. You can typically tell them apart by appearance: specified frame screens do not have any height adjustment features, whereas motorized or roll-down versions do. 

High-gain screens offer more light control than standard models but are also larger and heavier. If you’re looking for something simple to fit into your home theatre setup without too much space, then a standard screen is probably best for you. If you want to darken your room as much as possible and if you don’t mind being able to adjust your screen from time to time then it might be worth spending extra on a high-gain model.

Measuring Tips

While most screens are measured in diagonal inches, it’s important to note that not all projectors are. For example, if you want a 120 screen but your projector has an aspect ratio of 1.3:1, you may need a 133 screen instead (12% larger) for optimal viewing from all seats. 

In other words, before ordering a screen, make sure you know how your projector measures. Otherwise, you might end up with something that doesn’t fit right or looks like it was cut down to size—not exactly ideal when investing in such an expensive piece of equipment!


If you are looking for a new projector screen and want to know what size you should buy, you might have heard “diagonal” about projector screens. What does diagonal mean? It’s a way of measuring the size of the screen about the distance from the projector to the screen. It is a good thing to know because it can help you get the best projector screen for your needs.


How big is an 84-inch projector screen?

The diagonal measurement for an 84-inch projector screen is 101.6 inches long by 61.1 inches wide. The aspect ratio is 16:9, with an estimated viewing area of 96 inches long by 56 inches wide.

How wide is a 130 inch screen?

Once you know your screen size, it’s easy to determine how wide it is. For example, if you own a 130 screen, it is 13 feet wide. Those who purchase giant screens for their home theatre systems often ask this question. When purchasing these giant screens, the critical thing is that they aren’t always compatible with your projector or TV; read your product manual carefully and measure out an area big enough for your new screen before buying one for yourself.

How close can you sit to a 120-inch screen?

The distance between your projector and screen is called the throw or throw ratio. For example, if you use a 100-inch screen and have a 1.5:1 throw ratio, you will sit 3 feet from your screen for every foot away from your projector. A 200-inch screen with that same 1.5:1 ratio would require you to sit 5 feet from your projector for every foot of distance between it and your screen. So what should you choose?

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