3.90mm at Max Height: The Wobble Test Numbers Behind a Zero-Wobble Desk

The Test Nobody Shows You

Most standing desk brands talk about "stability" in vague terms. A few marketing adjectives, maybe a spec sheet number without context. But what does stability actually mean when measured in a test lab with real force applied to a desk at full standing height?

The EVT (Engineering Validation Test) report for the NexoHero 4-column desk answers that question with hard numbers. Here's what the test lab actually measured.

The Wobble Test: 100N of Force at Max Height

The wobble test is brutal because it isolates the frame's weak point. The desk is raised to its maximum height — where every 2-leg desk starts to shake — and a 100N force (about 22 lbs of lateral pressure) is applied in both horizontal and vertical directions. The deflection is measured in millimeters.

The NexoHero 4-column frame results:

• Horizontal deflection (AC): 3.90mm — the side-to-side sway under 100N of deliberate lateral force
• Vertical deflection (BD): 2.35mm — the front-to-back rock under the same load

Both measurements fall well under the 10.0mm maximum allowed by the test standard. On a 2-leg desk at the same height, this number typically runs 2-3x higher — which is why monitors shake during typing and coffee ripples during a gaming session. Four columns distribute that lateral force across four independent contact points instead of two, and the difference is measurable.

Noise: 47dB on Average

The motor noise measurement was taken 300mm from the motor housing during full-range lift cycles. Maximum recorded: 49.5dB. Average across all cycles: 47dB. For context, that's quieter than a refrigerator hum (50dB) and about the same as moderate rainfall. You can raise or lower the desk during a voice call without the other person noticing.

10,000 Lift Cycles on 3 Units — All Passed

The lift endurance test ran 10,000 full cycles (minimum → maximum → minimum) across three separate units under rated load. After 10,000 cycles, all three units functioned normally — no unusual noise, no tilt, no performance degradation. At 10 cycles per day, that's roughly 2.7 years of daily use. The motors kept going like day one.

202kg Dispersed Load: No Structural Change

Per BIFMA X5.5 standards, 202kg (445 lbs) was distributed across the desk surface and held for 15 minutes. The 4-column frame showed no sudden or significant structural changes. That's a full gaming PC, triple monitors, studio speakers, and a person leaning on the desk — all at once.

The Anti-Collision System: 1 Second to Stop

During the collision test, the desk was run into an obstacle at full speed. The anti-collision sensor triggered within 1 second, immediately stopping and reversing direction by 50mm — fast enough to protect cables, gear, and fingers. After 100 consecutive collision tests, the mounting screws showed zero loosening.

39 Tests, All Passed

Every single one of the 39 EVT tests passed on the first round: drop test from 200mm, salt spray corrosion (24 hours, zero rust), surface hardness (H pencil, no scratches), alcohol rub resistance, packaging vibration and stacking. A 4-column frame that passes every structural and durability test isn't luck — it's what happens when the frame geometry works with physics instead of against it.