A desktop size listed in inches tells you almost nothing about whether an L-shaped standing desk can hold a three-monitor setup, a tower PC, and a printer without flexing at the corner joint. Weight capacity and motor count matter more than the square footage on the spec sheet. Among the six desks below, Desky’s L-Shaped Standing Desk stands out as the strongest all-around pick for heavy multi-monitor setups, backed by a triple-motor frame rated to 496 lbs.