A height-adjustable table including a length-adjustable support, a motor assembly configured to drive adjustment of the length-adjustable support, a motor housing supporting the motor assembly. The length-adjustable support includes a telescopic column assembly comprising an exterior tube, an interior tube, and a spindle assembly. The spindle assembly includes spindle rod fixedly coupled to a first end of the exterior tube, the spindle rod being threadingly engaged with a spindle guide coupled to a first end of the interior tube, whereby rotation of the spindle rod causes the distance between the first ends to change in order to telescope the interior tube into or out of the exterior tube. Illustratively, force from rotation of the spindle rod is transferred through the spindle guide and into the first end of the interior tube. In illustrative embodiments, the spindle guide may extend through an aperture of a support plate coupled to the first end of the interior tube, thereby permitting transfer of force from the spindle rod to the interior tube.