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How To Pick The Right Projector Screen Size

Updated on April 11, 2008

How To Pick The Right Projector Screen Size


Putting together a home theater? Maybe you are outfitting a boardroom or training room for work with a projector system. You may be asking yourself, What screen size do I need for my room? Here is a simple guide to follow that will work in most any situation giving you the optimal projection screen size:

When determining what size screen to put in any room you will want to answer a few questions first.

1) Projector Native Resolution lets you know which aspect ratio to select for your screen . What is the native resolution of the projector that you have?

2) Ceiling Height allows you to determine the screen height that will fit gracefully into a room. What is the ceiling height of the room that you are outfitting?

3) Distance from Screen to Audience. The people sitting farthest away from the screen determine the minimum screen width. A screen should be at least as wide as 1/6 of the distance between the screen and the viewer farthest from the screen. How far away will the viewer be sitting?

Find out the answers to these questions and you can use a few simple rule of thumb techniques to determine the appropriate screen size.

Projector screen with 16:9 HDTV Format and 4:3 Video Format
Projector screen with 16:9 HDTV Format and 4:3 Video Format

Projector Native Resolution


First, we want to look at the native resolution (aspect ratio) of the projector being used in the room. This will help you determine what screen format you should go with. Most all projectors nowadays will do both 4:3 and 16:9 aspect ratios. As shown above, a projector with a native 16:9 aspect ratio can letterbox to show a smaller image in 4:3 format. You will want to go by the native aspect ratio in order to get the biggest and best picture.

Ceiling Height

Second, we will want to look at the ceiling height in the room. A screen should be at least 1 ft. down from the ceiling and 3 ft. up from the floor. For example, in an 8 ft. room, a screen should be 4 ft. high at the most. If the room has a slanted ceiling, the screen should be placed at least 1 ft below the ceiling at the point where the screen is going to be installed. This rule of thumb gives you a screen that is gracefully proportionate to the wall and the room. This is especially true for classrooms, boardrooms, and conference rooms where people will be sitting in front of one another.

A home theater application can be a little more liberal with this rule of thumb, unless you have a tiered seating arrangement in a dedicated home theater environment, but I would still think it's a good idea to keep it 3 ft. off of the floor. You will be glad you did. If you are mounting your projector to the ceiling, you want the projector to be even with the top of the the screen. Now this rule of thumb is for a maximum screen size. It is OK to go smaller. People tend to focus on what they can see in the center of their field of vision. A person's gaze tends to travel from one portion of the screen to the next when the screen is too big (or the person is sitting too close) to see it all at once. You don't want your audience to get tennis neck.

Distance from Screen to Audience

Finally, we need to look at the distance the audience will be sitting from the screen. For auditoriums, conference, and boardrooms the width of the screen should be no less that 1/6 the distance of the farthest spectator in the audience. For example if the back row of an auditorium is 48 ft. away then the width of the screen should be at least 8 ft. wide. This rule of thumb is for minimum screen size. It is OK to go larger. The important thing is to get a screen that is large enough for the audience in the back row to view comfortably.

How To Apply the Screen Size Rules of Thumb

1) Projector Resolution. I will pretend I have an Infocus IN72 projector, 16:9 aspect ratio for playing Hi-Def movies in a home theater. That means I should use a 16:9 HDTV format screen to get the biggest and best picture.

2) Ceiling Height. My ceilings are 8 ft. high. So my screen should be 48 in. high at the most. That means the largest screen I can fit in my small home theater is 92 in. diagonal 16:9 HDTV format (45 in. H x 80 in W).

3) Distance from Screen to Audience. If I prefer a smaller screen, the rule of thumb that screen width is based on the distance between viewer and screen offers some guidance. For example, if I set up the couch 10 ft. or 120 in. away, then the screen should be at least 20 in. wide (1/6 of 120 in.). That means a screen that is anywhere between 20 in. and 80 in. wide with a 16:9 aspect ratio will fit in my home theater.

Remember to use these points merely as a guide. There is no substitution for good common sense. If you think the screen is going to be too big for your room, go and measure the space. Typically with home theater setups I would not go any bigger than 120" diagonal. Really the recommended size for your basic home theater is in the 100" diagonal range. This will typically give you your best viewing image.


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    • profile image

      mtariq pak adsense 

      9 years ago

      Lawn mower racing was cute, but those modded mowers didn't look like they were making 60 mph in the video! I'm glad they've got a stock class. I don't think I'd get the kick out of it I can from racing an rc motorcycle or boat, though. Of course, I'm obviously biased! It's great that husband and wife both enjoyed it so much.

    • profile image


      9 years ago

      My projector is ceiling mounted at 14 feet distance from the screen, As well as I want it to display 16 feet width and 7 fet length . Is it possible? Please need help its urgent.

      Or what shall be the distance of my projector to get this screen size 12.5 x 6 feet.

      Thanks in Advance

    • profile image


      9 years ago

      I think the 1foot/3feet rule is a little too much. I have my screen about 4 inches from the ceiling and 31 inches from the floor and I don't feel reflections from my flat black ceiling. My screen is 130" and my ceiling height is 8ft. I however can't imagine going down to 96" to satisfy that rule. I have one row in my theatre though. May be that is why it is okay!

    • profile image


      10 years ago

      I enjoyed your article

    • profile image

      M. HD projector 

      10 years ago

      Nice hub ,you really did your research

    • RichterScale profile imageAUTHOR


      11 years ago from Kansas

      Very nice of you to say so, Bonhams! You sound like someone with experience and good ideas on the subject. Keep those great home theater and video gaming articles coming!

      Your fan,


    • Bonhams profile image


      11 years ago

      Great insite in to picking out a screen

    • RichterScale profile imageAUTHOR


      11 years ago from Kansas

      Thank you for your kind observations Monitor. I'm planning to post more soon. I made a delicious batch of blueberry jelly last night. It looked like it wasn't going to jel. At the last moment, I was able to fix it by adding a little more lemon juice and boiling it until the ratio of water to sugar and pectin was correct.

      I enjoyed reading your posting on the inflatable boats!

      Your fan.


    • monitor profile image


      11 years ago from The world.

      Thank you very much for your effort here RichterScale I enjoyed your artcile and trust we will see more from you.

      Your fan. Mon.


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