The Angle Is an Input, Not a Recommendation

This is the finding that should change how you approach the whole build.

We checked iRacing's support documentation, the official publisher support for Assetto Corsa Competizione, NVIDIA's Surround documentation and AMD's Eyefinity documentation. Not one of them publishes a recommended screen angle, a recommended viewing distance, or a recommended field-of-view value.

What iRacing publishes instead is a measurement procedure. Its configuration has a field named "Angle between center and side screens", and the instruction is to "enter the angle, in degrees, where your center monitor meets your side monitors." You measure your rig and tell the sim. The sim does not tell you.

The one geometric requirement iRacing does state is symmetry: "Adjust your monitors so the angle is identical where both side monitors meet your middle monitor."

How field of view is actually set

Also by measurement. iRacing's documented procedure is to enter three numbers and let the software do the rest:

The Checkbox That Decides Whether Angling Helps

This is the most under-reported fact in triple screen setup, and it is stated plainly in iRacing's own documentation.

Angling your screens only changes the rendering if three-projection rendering is switched on. Verbatim: "Note that if 'render scene using 3 projections' is not enabled, 'Angle between center and side screens' will not affect how the simulation is rendered."

iRacing describes what the option does: "Enabling this will cause the simulation to render each monitor using a separate camera, giving you more control over how the simulation renders across the three monitors and providing a more realistic view of the race track."

Not Every Sim Can Use a Screen Angle

If you race one title exclusively, this may be the most important section here.

Assetto Corsa Competizione does not support per-screen angle or bezel values at all. Its publisher states it directly: ACC "runs on triple screen setups as a single render scene, that is split over three displays." Instead of three projections it applies a distortion correction — "a special projection correction that reduces the lateral distortion that might affect ultrawide screens and triple monitor setups", which the publisher notes is called Pannini Projection.

On the feature itself, the publisher is explicit: "We appreciate that some users are requesting three separate renderings in order to tune bezel values and screen angles. Currently, Unreal Engine 4 doesn't support this feature."

What this means when you shop. If ACC is your main title, an angle-adjustable mount still changes what your eyes physically see — but the software will not account for it. If iRacing is your main title, angle adjustment is a feature the sim can genuinely use. Know which of those you are buying for.

We could not find official triple-screen documentation from the publishers of Automobilista 2 or rFactor 2 — only community forum threads, which we do not treat as authoritative. If you race those titles, check their current documentation directly rather than relying on this or any other guide.

What NVIDIA and AMD Actually Require

Before the sim ever sees your screens, your GPU has to combine them into one surface. Both vendors publish real constraints, and one of them corrects a widespread belief.

NVIDIA Surround — mixed monitors are allowed, at a cost

It is commonly said that triples must be identical. NVIDIA's own documentation says otherwise, and then explains the catch: "Nvidia Surround allows for combining displays which are not identical (eg in size or available resolutions or output protocol)… However, this synchronization requirement can lead to the driver disincluding certain resolutions and refresh rates."

The consequence, in NVIDIA's own example: "Combining a 4K 144 Hz display with a 1080p 60 Hz display will result in a Surround resolution with 1080p max height and 60 Hz max refresh rate." Your whole array drops to the highest common timing.

AMD Eyefinity — one group, one card

AMD's current documentation states that "A single Eyefinity group, with up to six displays, can be created per graphics card" and that the combined desktop is the sum of the displays — "Three 1920x1080 displays arranged in 3x1 AMD Eyefinity mode, will produce a horizontal desktop with a combined resolution of 5760x1080." An Eyefinity group cannot span multiple graphics cards, and extended mode must be enabled in Windows first.

AMD also notes that where displays have different resolutions "the desktop image may appear stretched or cropped", and offers Fill, Fit and Expand presets to manage it.

For G-SYNC users, iRacing adds a relevant note: "Nvidia does not officially support multi-monitor G-SYNC without using Nvidia surround."

Bezel Compensation Happens Twice

There are two independent layers of bezel correction and they can work against each other.

At the GPU: NVIDIA describes its Bezel Correction as adjusting "for display bezel gaps so that Surround displays are aligned with each other", with the effect that "part of the game view is hidden behind the display bezel so that the bezel appears to be part of the game… similar to looking through a cockpit window where the window frames block your view." AMD has an equivalent Adjust Bezel Compensation option.

At the sim: iRacing has its own bezel width field, and notes that GPU-level settings "should not need to be adjusted for most users" because iRacing applies its own correction.

Mounting: Weight Ratings and VESA Patterns

This is where triple screen builds actually fail, and it is entirely checkable in advance.

"VESA compatible" on its own means nothing

The VESA Flat Display Mounting Interface standard is banded by display size and weight, not defined as a single pattern. Its own overview sets out parts covering displays from 4" to 90" diagonal, with weight ceilings attached — for example a part covering 23" to 30.9" displays weighing up to 22.7 kg (50 lb) using a six-hole interface, and a part covering 31" to 90" displays weighing up to 113.6 kg (250 lb) using a multi-hole interface.

So a mount being "VESA compatible" tells you nothing useful. What matters is which specific pattern it accepts and what weight it is rated for — and those come from the mount manufacturer, per product.

In practice, sim racing mounts publish explicit pattern lists. Depending on the product these run from 75×75 and 100×100 up through 200×200, 400×400 and beyond, sometimes only via an included extension bracket. Read the list for the exact product you are buying, because they differ between models from the same manufacturer.

If you are still deciding how screens fit into the wider rig, the racing and flight simulator buyers guide covers the build order that makes mounting decisions easier.

The four numbers to have before you order

1. Your monitors' VESA pattern — the actual hole spacing, from the monitor's own specification.
2. Each monitor's weight without its desktop stand — that is the figure the mount rating refers to.
3. Each monitor's diagonal size — against the mount's stated maximum, which is often lower in triple configuration than single.
4. Rear housing clearance — curved backs, recessed mounting points and cable exits defeat plenty of otherwise-compatible mounts.

Triple Screen Mounting at ProSimHQ

Two different structures solve this problem, and which one you want depends on your screen size and your rig.

Freestanding: the screens carry their own weight

A freestanding stand is the right answer when your screens are large, when your cockpit is a third-party rig the cockpit mounts were never designed for, or when you want the display structure isolated from a direct-drive wheelbase rather than bolted to the same frame.

Next Level Racing Round Tube Freestanding Triple Monitor Stand is the freestanding option we stock. The manufacturer publishes the figures that matter:

The anti-sag adjusters are the specification to pay attention to. Three heavy panels cantilevered off a frame will droop at the outer edges long before the frame itself fails, and a droop of a few millimetres at the bezel is visible every time you look across the join. Per-point adjustment is how that gets corrected after assembly rather than tolerated.

🔴 One honest note. An earlier Next Level Racing freestanding triple stand, the NLR-A010, is discontinued. If you find that model referenced in an older review or forum thread, it is not the product above and we are not able to supply it.

Cockpit-mounted: the rig carries the screens

Next Level Racing F-GT Monitor Stand — Matte Black (NLR-A006) attaches directly to the cockpit and supports either a single display or three. The published specifications are unusually complete:

🔴 Two cautions we would rather state than have you discover. The 65-inch limit applies to single-screen use only — triple mode is rated to 27 inches per screen. And this stand is designed for the standard Next Level Racing F-GT Simulator Cockpit. It should not be assumed compatible with F-GT Elite, GTElite, GTLite, GTRacer, flight cockpits or third-party rigs. Confirm your exact cockpit model before ordering.

A further honest note: the distributor data we hold for this stand does not state a complete VESA range, so we are not publishing one. Send us your monitor model and we will check it against the current manufacturer mounting guide rather than guess.

Cockpits are in racing simulator cockpits, and mounting hardware in racing simulator accessories. If you are weighing triples against a headset, our comparison of triple monitors versus VR covers that decision, and the sim racing cost guide puts screens in context against the rest of the build.

Common Mistakes

• Chasing an angle number from the internet. No publisher or GPU vendor publishes one. Measure your rig and enter what you actually have.
• Angling screens with three-projection rendering off. iRacing states the angle field does nothing in that case.
• Buying an angle-adjustable mount for a sim that cannot use angles. ACC renders a single scene and has no angle or bezel input.
• Mixing one adapter into an otherwise-direct setup. NVIDIA documents this as a cause of Surround failing to form.
• Assuming mixed monitors are fine. They are supported, but the array drops to the highest common resolution and refresh rate.
• Applying bezel compensation at both the GPU and the sim. You will hide the same image twice.
• Reading "VESA compatible" as a fitment guarantee. Check the specific pattern and the weight rating — and treat a missing weight rating as a question, not a green light.
• Using the single-screen size limit for triple mode. They are usually different, and triple is lower.

Frequently Asked Questions

Sources and Further Reading

• iRacing — Setting Up Three Monitors — the screen angle field, the three-projection requirement, the field of view calculator and curved-monitor radius.
• 505 Games — Does Assetto Corsa Competizione offer triple monitor support? — the single render scene, Pannini Projection, and the absence of per-screen angle and bezel values.
• NVIDIA — Getting Started with NVIDIA Surround — mixed-display timing limits, the adapter requirement, and bezel correction.
• AMD — Configure Multiple Displays to Run in AMD Eyefinity Mode — one group per graphics card, combined resolution, and the presets that govern bezel compensation.

ProSimHQ Editorial Note

ProSimHQ is an independent retailer of simulation equipment from multiple manufacturers. Software behaviour, driver features and product specifications change — verify against current documentation before purchasing. Where no publisher or vendor documents a value, this guide says so rather than repeating a figure from community sources. Mount fitment must be confirmed for each specific monitor and mount combination and is never inferred; where a manufacturer does not publish a weight rating or a complete VESA range, we have said so rather than supplying one.