Single motor vs dual motor standing desks: what actually changes

What the two designs do differently

In a single-motor desk, one motor sits under the desktop and drives both legs through a rotating steel bar. The legs are mechanically linked, so they move together whether or not the load is even.

In a dual-motor desk, each leg has its own motor and the controller synchronises them electronically. There is more hardware, which is why it costs more, and more torque available, which is why it lifts faster and higher.

The four differences you will actually notice

Ignore the marketing. These are the practical consequences.

• 01Speed: a properly engineered frame runs 30–35 mm/s against 20–25 mm/s on a budget desk. Over a 35 cm change that is roughly eleven seconds versus sixteen — small, but you feel it several times a day.
• 02Load: a single motor usually tops out around 70–80 kg; dual-motor frames commonly carry 100–160 kg. Our V1 is rated 100 kg, the V2 120 kg and the V3 140 kg.
• 03Uneven loads: put a heavy monitor arm at one end and a single-motor desk has to fight the twist through its drive bar. Two motors share the work and the desk stays level.
• 04Noise: two smaller motors doing less work each are usually quieter than one working hard. All our frames run under 50 dB, which is around the level of a quiet office.

When a single motor is genuinely fine

If your desk holds a laptop, one small monitor and a lamp, a single-motor frame will do the job for years. The load is light, the balance is even, and a few extra seconds of travel costs you nothing.

It stops being fine when the desk gets heavy or lopsided: two or three monitors, a PC tower hung under one side, a pile of books at one end. That is where the twisting shows up as a wobble at full height and, eventually, as premature wear.

How this maps onto our range

All three Desko frames are dual motor, so the choice is not motor count but stage count and capacity.

How to tell which one you are looking at

Sellers are not always explicit, so check the specification rather than the description. Three tells give it away quickly.

• 01Lift speed: anything quoted at 20–25 mm/s is almost certainly a single motor. Dual-motor frames sit at 30 mm/s and above.
• 02Load rating: 70–80 kg suggests one motor; 100 kg and above suggests two.
• 03The photograph of the underside: a single motor sits in the middle with a long steel drive bar running to each leg. A dual-motor frame has a smaller box and two cables going out to the legs.

What a motor actually has to lift

People underestimate this. The desktop itself is often the single heaviest item: a 160×80 cm laminate top is roughly 20–25 kg, and solid oak at that size can be 35 kg before you put anything on it.

Add two 27-inch monitors on an arm (8–12 kg), a PC tower hung underneath (10–15 kg), a laptop, a monitor light, a couple of books, and you are at 55–70 kg without trying. That is comfortably inside a dual-motor rating and uncomfortably close to a single-motor one.

The rating that matters is the dynamic load — the weight the desk will lift — not the static load it will merely hold. Some sellers quote the second because it is a bigger number.

Noise, and why it varies

Motor noise is a function of how hard the motor is working. Two motors sharing a load each work less and run quieter, which is why our frames stay under 50 dB — roughly the level of a quiet office or a fridge in the next room.

A single motor near its limit gets noticeably louder as it climbs, and that is when people stop raising the desk during calls. If you work in a shared room or take a lot of video meetings, it matters more than the spec sheet suggests.

What about four-leg and four-motor desks?

Above about 180 cm wide, or for corner and L-shaped desks, some manufacturers use four legs and four motors. They are genuinely more stable at width, and genuinely more expensive — typically £650 upwards in the UK.

For a rectangular desk up to 180 cm, which covers almost every home office, a two-leg dual-motor frame is the sensible answer. We do not sell a four-leg desk because we would rather do three frames properly than five badly.

Questions, answered.