The Ergotron HX is an obvious choice if you want to mount an ultrawide, super-ultrawide, or large format widescreen monitor on your desk. The Humanscale M2.1 with M/Connect laptop docking station ...

Mounts to desks (up to 3.25" thick) with heavy duty C-clamp or optional grommet mount. Extra Tall Pole - The 39” center pole allows you to adjust the monitors between sitting and standing positions.

And, the same goes for a floating desk. Whether you craft a from-scratch ... While the video combines three monitors on a mounting board, you can mount one monitor by attaching it to a stud.