Standing desk load calculator

Quick answer

A published lift capacity is the load above the frame and usually excludes the tabletop. A 265 lb dual motor frame under a 52 lb laminate top has 213 lb left, and a desktop tower, two 27 in monitors on a dual arm and a UPS take about 100 lb of that before you lean on it.

Rated capacities and lift speeds are manufacturer specifications. The tabletop and equipment weights are planning conventions, and a real product datasheet always beats them.

Capacity after the top -
Headroom left -
Lift speed -
Sit to stand time -

Remaining = rated capacity - tabletop weight. Headroom = remaining - equipment. Lift time = travel / speed, at about 1.0 in/s single motor and 1.5 in/s dual.

Frames and tops

Shown across the range this category actually spans, from $99.98 to $719.99, rather than the cheapest few.