Monitor Arm Buying Guide: How to Choose the Right One (2026)

A good monitor arm is one of the best €50-100 upgrades you can make to a home office. It frees desk space, improves ergonomics, and makes screen positioning effortless.

Here’s what to know before buying.

Why Use a Monitor Arm?

Ergonomic Benefits

• Precise height adjustment: Top of screen should be at eye level
• Depth adjustment: Screen 50-70 cm from your eyes (arm’s length)
• Tilt control: Slight downward tilt reduces neck strain
• Rotation: Easy switch to portrait for reading docs/code

Desk Space

Freeing up the ~30×20 cm monitor base gives space for:

• Notebooks, documents
• Coffee cup
• Keyboard pushed back when not typing
• Cleaner, less cluttered look

VESA Compatibility (Critical!)

VESA = Video Electronics Standards Association mount pattern.

Most monitors have 4 screw holes on the back in one of these patterns:

• VESA 75×75 mm (small monitors, 21-24”)
• VESA 100×100 mm (most common, 24-32”)
• VESA 200×100 mm or 200×200 mm (large/ultrawide)

Check your monitor’s manual or back panel before buying. Some budget monitors have no VESA mount (deal-breaker).

Most arms support 75×75 and 100×100 with included adapters.

Weight Capacity

Monitor arms are rated by weight capacity:

• 3-7 kg: Small monitors (<24”), cheap arms
• 7-10 kg: Standard range, fits most 27” monitors
• 10-15 kg: Large monitors, 32”+, ultrawides

How to check monitor weight: Specs sheet or weigh it. Most 27” monitors are 4-6 kg.

Safety margin: Get an arm rated for 2-3 kg above your monitor weight.

Mounting Types

1. Clamp Mount (Most Common)

Clamps to desk edge (10-80 mm thickness).

Pros: Easy install, no drilling, removable
Cons: Won’t work on glass desks or desks without accessible edge

2. Grommet Mount

Bolts through a ~10 mm hole drilled in your desk.

Pros: Very stable, cleaner look, works on glass
Cons: Requires drilling (permanent modification)

3. Pole Mount

Attaches to monitor arm desk pole systems (rare).

Pros: Multi-monitor setups
Cons: Requires existing pole infrastructure

Most people want clamp mount — no drilling, works on most desks.

Gas Spring vs Mechanical

Gas Spring Arms

Height/depth adjustment via pneumatic spring (like an office chair).

Pros:

• Effortless movement, smooth
• Holds position anywhere in range
• Premium feel

Cons:

• €70-150 price range
• Can sag over time if not high quality

Examples: Ergotron LX (€189), HUANUO Gas Spring (€69)

Mechanical Arms

Height set with tightening screws/knobs.

Pros:

• Cheaper (€30-60)
• Never sag
• Simple, reliable

Cons:

• Adjusting height requires loosening/tightening
• Less convenient for frequent changes

Examples: Amazon Basics Monitor Arm (€49)

Recommendation: Gas spring if you change position throughout the day. Mechanical if you set it once and forget.

Cable Management

Good arms include:

• Cable clips or channels
• Routing through the arm itself
• Velcro ties

Prevents cables from drooping below desk. Not critical but nice quality-of-life feature.

Top Picks

Budget: Amazon Basics Monitor Arm (€49)

Mechanical, clamp mount, 11.3 kg capacity.
Basic but solid. No-frills workhorse.

View on Amazon

Mid-Range: HUANUO Gas Spring (€69)

Gas spring, clamp or grommet, 9 kg capacity.
Best value. Smooth movement, good build.

View on Amazon

Premium: Ergotron LX (€189)

Gas spring, legendary reliability, 11.3 kg capacity.
Lifetime warranty. Buy-it-for-life quality.

View on Amazon

Ultrawide: HUANUO Ultrawide Gas Spring (€89)

Supports up to 15 kg, extended reach arm.
For 34”+ ultrawides or heavy monitors.

View on Amazon

Installation Tips

1. Assemble arm first before attaching monitor
2. Remove monitor base (usually 4 screws on back)
3. Attach VESA plate to monitor
4. Mount arm to desk (clamp or grommet)
5. Hang monitor on arm (can be heavy, use two hands)
6. Adjust tension (gas spring arms have tension knob for monitor weight)

Takes 15-30 minutes. No special tools needed beyond included hex keys.

Dual Monitor Arms

If running two monitors:

Option 1: Two separate single arms (€100-140)
More flexible positioning, easier to set up.

Option 2: One dual-arm mount (€120-180)
Cleaner look, single clamp, symmetric.

Recommendation: Two single arms. More versatile, easier to adjust independently.

Common Mistakes

1. Buying arm before checking VESA compatibility — verify first!
2. Underestimating monitor weight — weigh it or check specs
3. Cheap arms for heavy monitors — they’ll sag or break
4. Grommet mount on rental apartment — use clamp unless you own the desk
5. No cable management — dangling cables look messy

Bottom Line

Best value: HUANUO Gas Spring (€69) — smooth, reliable, affordable
Budget: Amazon Basics (€49) — mechanical but functional
Premium: Ergotron LX (€189) — lifetime warranty, best quality
Ultrawide/Large: HUANUO Ultrawide (€89)

Verify VESA compatibility first. Check weight capacity. Choose gas spring for frequent adjustment, mechanical for set-and-forget.