FROM OUR EXPERIENCE
We manufacture both white and gray screens. This means we have no financial incentive to recommend one over the other — we’d rather sell you the right product and have you satisfied than sell you the wrong one and have you disappointed. What follows is our honest, technically grounded guidance on how to choose.
The choice between a white and gray impact screen is determined almost entirely by one variable: how much ambient light is present in your room during use. It is not primarily a budget decision, a performance tier decision, or a personal preference decision. It’s an environmental match decision.
TruSim Elite
High Contrast Elite
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The Physics of Why Screen Color Matters
A projector works by emitting a bright, patterned light (the course image) that hits the screen and reflects back to your eyes. The image you perceive is the ratio of projected light to ambient light at the screen surface. In a perfectly dark room, 100% of the light reaching your eyes from the screen is from the projector — maximum contrast, maximum vividness.
As ambient light increases — from a window, an overhead fixture, gaps around a garage door — it also reflects off the screen. Now the image you perceive is a mix of projected light and ambient light. The darker parts of the image (shadows, rough, trees) are most affected — they 'lift' toward gray rather than staying black. This is called contrast ratio degradation, and it's the core problem that gray screens address.
According to projector calibration standards published by the Society of Motion Picture and Television Engineers (SMPTE), a contrast ratio of at least 1000:1 is recommended for immersive video display. In a room with moderate ambient light, a white screen may drop below this threshold; a gray screen maintains it by selectively absorbing the lower-intensity ambient light while still reflecting the higher-intensity projector output.
White Screens: When They're the Right Choice
A white screen is correct when you have reliable, consistent control over your room's lighting. The specific conditions that suit a white screen: fully blacked-out basements with no windows, dedicated simulator rooms with light-sealing doors and no light gaps, commercial bays with complete enclosure and blackout curtaining, or any space where ambient light is consistently near zero during use.
TruSim's Elite Golf Simulator Impact Screen is engineered for these environments — it produces a bright, vivid image with wide viewing angles when ambient light is controlled.
Gray Screens: When They're the Right Choice
A gray screen is correct when ambient light is present and can't be fully eliminated. The specific conditions that suit a gray screen: garages with light infiltration around doors, rooms with windows that are impractical to fully black out, commercial spaces with shared lighting or open entrances, and any space where you want to use the simulator during daylight hours without full blackout treatment.
TruSim's High Contrast Elite Triple Layer Impact Screen uses a gray surface with controlled optical absorption characteristics developed through our manufacturing process. The gray formulation isn't a paint or post-production tint — it's an integral property of the front-layer material. In our comparative testing, the gray screen consistently outperforms a white screen in rooms with ambient light levels above 30 lux (roughly equivalent to a dimly lit office).
The Trade-Off: What Gray Gives Up
In a fully dark room, a gray screen produces a somewhat dimmer image than a white screen with the same projector — because the gray surface absorbs some projector output along with the ambient light. This means that in a perfectly controlled dark room, a white screen will outperform a gray screen on absolute brightness.
FROM OUR EXPERIENCE
We make this point clearly to every customer asking about screen color: these are not better and worse versions of each other. They are purpose-built for different environments. Choosing the gray screen because it sounds more technical or because it's associated with premium builds — but installing it in a dark basement where a white screen would serve better — is simply the wrong call. Choose based on your room.
How to Assess Your Room's Lighting
Stand in your planned simulator space at the time of day you're most likely to use it. Turn off all artificial lighting. Close all doors. If the room is dark enough that you struggle to read text on a phone without the phone being the light source, it qualifies as a dark room — go white. If you can clearly see your surroundings and identify objects across the room, ambient light is meaningful — go gray.
For a deeper look at how impact screens are constructed and what separates a quality screen from an entry-level one, see our companion guide on what makes a good golf simulator impact screen.
Frequently Asked Questions
What happens if I choose the wrong screen color for my room?
A white screen in an ambient-light room will show a washed-out, low-contrast image that degrades significantly when any light enters the room. A gray screen in a dark room will produce a functional but slightly dimmer image than you'd get with a white screen. The white-in-ambient-light scenario is more visually problematic than the gray-in-dark scenario.
Can I add blackout curtains to make a white screen work in a bright room?
Sometimes — if the curtains provide complete light blocking and you're consistent about using them. But light gaps around curtains, above rods, and under doors are persistent problems that make achieving true darkness harder than it appears. If you're uncertain about achieving reliable darkness, gray is the safer choice.
Does the projector brightness affect which screen color I should choose?
Projector brightness and screen color are related choices. Gray screens need more projector brightness to compensate for their lower gain. If you're choosing a gray screen for an ambient-light environment, select a projector in the 3,500–5,000 ANSI lumen range rather than the lower end of the spectrum.
By The TruSim Build Team | Backed by Canwil Textiles' manufacturing expertise | 30+ years in technical fabric production | Hundreds of simulator builds