The Best Monitor Arms For A Thick Desk {Top 5}

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Monitor arms are mounted to a desk by either a C-clamp (that slots over the desk edge), or a Grommet (that holds the arm in position using a hole in the desk surface).

The problem that comes with using a monitor arm on a thick desktop, or a desk that has full width drawers is that the C-clamp often isn’t wide enough to slot over the work surface.

In fact the widest C-clamp on an ‘off the shelf’ monitor arm can accommodate only a 4″ desk thickness at the very most. 

This article will consider a range of single and dual monitor arms that are fitted with the widest C-clamps available, as well as looks into a couple of alternative ideas for how a monitor arm can be incorporated into your setup without compromising on the look of desktop.

Our Pick
HUANUO HNSS12 Single Monitor Arm
  • 3.5″ C – clamp
  • 35″ max monitor size
  • 26.3lbs max monitor weight
Budget Pick
MOUNTUP MU0004 Single Monitor Arm
  • 3.54″ C – clamp
  • 32″ max monitor size
  • 17.6lbs max monitor weight
Best Dual
HUANUO HNDS6 Dual Monitor Mount
  • 3.74″ C – clamp
  • 27″ max monitor size
  • 14.3lbs max monitor weight

Off the shelf monitor arms with the widest clamps

BrandModelSingle or DualMaximum Desk Thickness Using ClampMaximum Desk Thickness Using GrommetMax Monitor SizeMax Weight

What are some of the best monitor arms for a thick desk?

Our Pick – HUANUO HNSS12 Single Monitor Arm

The winner, and in our opinion best pick for a monitor arm at the time being for a thick desk goes to the Huanuo HNSS12

A solid performer across all categories, the HNSS12 has the capability of providing mobility to heavy screens up to 35″ in size, whilst securing everything in place with a clamp that slots over thick desktops up to 3.5″ in depth. 

The length of the arm when fully extended (almost 2 feet!) means this unit is better placed than any other to slot into a set-up on a multi-functional work space like a drawing table or craft station.

Simply attach the stand on the far corner of the desk and swing the monitor into action when needed. 

We Like
3.5″ C – clamp + 3.5″ grommet
Can support monitors up to 35″ in size and weighing up to 26.4lbs
Extra-long reinforced arm
Cable management features including a USB port in the stand base are built in
We Don’t Like
Setting the pneumatic tension of the arm to your monitor weight can involve a little trial and error
HUANUO HNSS12 Single Monitor Arm
  • UPGRADE MONITOR ARM: HUANUO monitor desk arm perfectly fits most LCD LED flat or curved computer screens up to 35 inches, holds 4.4-26.4lbs, suitable for VESA patterns of 75x75mm & 100x100mm. Compatible with different sizes of computers screens, including but not limited to 35 32 30 28 27 25 24 23 22 21 20 19 17 inch screen
  • FULL MOTION MONITOR STAND: A Wide range of movements, tilt: +85/-30, rotation:360, swivel angel 180. Extended reinforced detachable arm, suitable for wider table, arms can be extended up to 21.65", height adjusted up to 21.65". Set your monitors to customized angles and positions freely while saving up much valuable space on your desktop
  • USB MANAGEMENT INTEGRATION: The monitor mount has USB connectors with cable management, solves cable clutter, improves comfort level, and supports bad cable replacement. Use a hidden adjustment hole to avoid daily dust, not only has a beautiful design, and is easy to clean
  • EASY TO ASSEMBLE: The 1-piece gas spring arm simplifies the assembly. You just need to choose the proper mounting base and mount the monitors. The setup can be completed in 10 min or less. Comes with both C clamp and grommet kits, this stand fits desks with or without a hole. C clamp and grommet mounting fit desk thickness 0.39"-3.9".(Note:Please scope of application before purchasing)
  • COMFORTABLE ERGONOMICS: This single monitor stand raises monitors to eye level, improving posture, and relieving strain on the neck & shoulders while increasing productivity levels and comfort, increasing office space flexibly

Budget Pick – MOUNTUP MU0004 Single Monitor Arm

The low cost of the MOUNTUP MU0004 has made it a bestseller in the monitor arm category wherever it’s sold. 

For our purposes, the C-clamp width of 3.54″ is really handy, and with no sacrifice on functionality (switch between landscape and portrait, tilt of 135 degrees etc.) at behest of cost there’s hardy a negative to mention. 

If you’re monitor is within the 95th percentile of weight and size (i.e. it’s no bigger than 32″ and weighs no more than 17.6lbs) then this arm should definitely make your shortlist. 

We Like
Very reasonable price point
3.54″ C – clamp + 3.34″ grommet
Black, silver and pink color options
Can support monitors weighing up to 17.6lbs
We Don’t Like
The gas spring adjustment mechanism needs a bit of force to move
MOUNTUP MU0004 Single Monitor Arm
  • Universal Monitor Arm: MOUNTUP monitor desk mount perfectly fits most LEDOLEDQLED flat or curved computer screens up to 32 inches, holds 4.4-17.6 lbs, suitable for VESA patterns of 75x75mm & 100x100mm. Compatible with ASUS, Acer, Samsung, LG, HP, AOC, Dell, Lenovo, etc., including but not limited to 32 30 28 27 25 24 23 22 21 20 19 17 inch screen.
  • Full Motion Monitor Stand: This single monitor arm offers a wide range of movement. Supports screen rotates 360 for landscape or portrait orientation, swivels 180 to share your display, and tilts up 90/down 45 for better viewing. The arm can extend up to 19.27" long, and rise up to 16.3" in height. Easy to find the right viewing angle and position. Tension adjustment is based on the weight of monitor and the gas spring is pre-set to mid-tension, please adjust tension after hanging on monitor.
  • Easy To Assemble: Our monitor VESA desk mount is easy to install with a drill-free c-clamp(desk thickness within 0.39''-1.97'') or grommet base mount(desk thickness within 0.39''-3.15'', hole diameter within 0.39''-2.36''). If the thickness of your table is not within this range, please relate with us for suitable C-clamp. Comes with clear manual and mounting hardware needed. Less than 15 minutes from opening box to use.
  • Free Up Your Desk Space: Heavy-duty monitor arm with built-in cable control professionally helping to hide wires. The single monitor stand releases more than 80% desktop space to place office accessories compared to a monitor holder with a large base while creating a more comfortable work environment. More desk space, better workflow!
  • Sturdy Construction & Friendly Service: The stable gas spring and clamp/grommet base are strong and durable enough to ensure the safety and security of your single monitor setup. Backed by MOUNTUP 3-year support.

Also Great – HUANUO HNDS6 Dual Monitor Mount

Throughout all of our searching the Huanuo HNDS6 was the only monitor arm, single or dual, which offered the ability to attach to a desk with an edge thicker than 3.5″. 

As the primary design feature being assessed in this post, the ability to clamp onto at desk of up to 3.74″ in thickness meant  the HNDS6 won the ‘attach to the greatest width’ award by some margin.

Be mindful however that there are limitations on the weight bearing capabilities of this unit. Whilst 14.3lbs for each arm covers most monitors, it won’t cover them all. 

A further point to be aware of is that the fantastic articulated arms need about 6″ of room behind the desk to operate through all of their potential configurations.

They do however offer so many pivot points that you’ll likely have no issue customising a set-up that works for you whilst also allowing your desk to remain flush with a wall. 

We Like
A market topping 3.74″ C – clamp + 3.74″ grommet
The C-clamp itself is extremely sturdy and supported by two bolts instead of the usual one
We Don’t Like
You need to leave space behind the desk to allow the arms to fully articulate
Can only hold monitors up to 27″ in size
Can only support monitors weighing up to 14.3lbs each
HUANUO HNDS6 Dual Monitor Mount
  • Fit Your Monitors and Desks- Each arm can fit 13 to 30 inches flat/curved monitors with Vesa pattern 75x75 and 100x100; Each arm holds 4.4lbs to 19.8lbs. About the desk, we recommend wooden desktops and the compatible desk thickness is 0.79"-3.54".
  • Hold Your Monitor in Place - HNDS6 features a unique structural design that offers a more reasonable product structure compared to other hinge brackets, significantly improving stability. It also provides two desktop installation methods: C-clamp or grommet base. Both options ensure stable and secure fixation for your monitor. At Huano, we have always been focused on improving the strength and stability of desktop dual monitor mounts.
  • Optimize Your View and a Wide Range of Motion - No more bother rotating the angle by adjusting the screw! The gas spring desk arm makes it adjust with such smooth action. The monitor stand allows your monitor to swivel, tilt and rotate. Go and freely set your monitors to customized angle and position.
  • Comfort Is Fundamental - Our dual monitor arm for desk raises monitors to eye level, improving posture, relieving strain on neck & shoulders while increasing productivity levels.Height adjustable, full motion design lets you work in a more comfortable ergonomic position.
  • Easy to Install - Includes instruction manual and standard mounting hardware for installation. The dual monitor mount is also designed with a cable management function to route wires for a cleaner, more streamlined look. Mounting your monitors can free up an extra 50% of desktop space and reduce clutter.

Also Great – Vivo GM1BB Premium Pneumatic Monitor Arm

Vivo have shown a little creativity by cleverly incorporating some neat blue LED lights into the casing of the GM1BB. A nice touch to if your gaming set-up features accents in blue or white. 

Of course, you don’t buy a monitor arm for its lights alone (they can be switched off by the way) and when measured and compared with others on this list the GM1BB is decent, if not a world beating unit. 

The ability to clamp onto a desk as wide as 3.5″ in thickness sure is useful but there are a little concerns raised amongst the reviews with build quality reportedly hit or miss with the weight of even light monitors causing the arm to sink.

We Like
3.5″ C – clamp + 3.5″ grommet
Can hold monitors up to 32″ in size
Ability move your monitor through 13″ of height range
LED lights can be switched on and off
We Don’t Like
The arm struggles to hold monitors that weigh at the top of its capabilities. Stick with monitors 14.3lbs or lighter
For gamers and non-gamers alike, the LED lighting is a little on the bright side
Vivo GM1BB Premium Pneumatic Monitor Arm
  • Fits 17" To 32" Screens - Take your setup to the next level with this single LED monitor mount fitting most screens 17 to 32 in size and up to 17.6 lbs in weight. Supports VESA 75x75mm and 100x100mm and secures to your desk with a heavy duty C-clamp (3.5 maximum desk thickness).
  • Blue LED Lights For Ambiance - Adding LED lights to your gaming setup or workstation creates ambient color that makes your area more vibrant and unique. Perfect for serious gamers wanting style and functionality combined.
  • Pneumatic Height Adjustment - Raise your screen to eye level and enjoy comfortable viewing angles with +90 to -85 tilt, 180 swivel, 360 rotation, and height adjustment with a powerful pneumatic arm. Monitor can be placed in portrait or landscape orientation.
  • Easy Installation - Mounting your monitor is a simple process with the removable VESA plate. We provide all necessary hardware and instructions for easy assembly.
  • We've Got You Covered - Sturdy steel design is backed with a 3 Year Manufacturer Warranty and friendly tech support to help with any questions or concerns.

Also Great – VIVO V200G Heavy Duty Dual Monitor Arm

The Vivo V200G has the strength of build to bring swivel, tilt, height and rotation options to not one but two heavyweight screens. 

As our article on monitor arms for heavy displays showed, this capability allows it to support almost all of the 32″ monitors sold today.

The monitor arms themselves can be independently rotated to create a setup with one or two vertical monitors, with the adjustable pneumatic arms respecting and holding even the most miniscule of tweaks in screen position. 

We Like
Can hold monitors up to 32″ in size
Can support 2 monitors weighing up to 26.4lbs each
Pneumatic arms have adjustable tensions to cope with variable weights
Integrated cable management features built into the design
We Don’t Like
Attachments limit the desk thickness to a maximum of 3.3″ only
VIVO V200G Heavy Duty Dual Monitor Arm
  • Fits Extra Heavy Screens - This dual monitor mount fits screens 17 to 32 in size and up to 26.4 lbs in weight (each) with VESA 75x75mm or 100x100mm mounting holes. The sturdy C-clamp fits desks from 0.4 to 3.3 in thickness, and an optional grommet mount is included to accommodate a variety of layouts.
  • Fully Adjustable - The powerful pneumatic arms offer a height range from 13.2 to 19.5, and the mount features +45 to -45 tilt, 180 swivel, and 180 rotation for comfortable viewing angles. Please Note: The arms must hold at least 4.4 lbs of weight (each) for the counterbalance tension to work properly.
  • Integrated Cable Management - Cable clips conveniently route power and AV cords for a clean and organized appearance. This also keeps cables neatly out of the way during adjustments.
  • Easy Installation - Mounting your monitors is a simple process with the detachable VESA plates. We provide all the necessary hardware and instructions for simple assembly.
  • We've Got You Covered - Sturdy aluminum design is backed with a 3 Year Manufacturer Warranty and friendly tech support to help with any questions or concerns.

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