How do I account for monitor arm reach in desk depth planning?

A standard articulating monitor arm has 18–25 in. of horizontal reach from its clamp or grommet mount point. When extended to a typical 24 in. viewing distance from the user's eyes, the arm occupies approximately 6–10 in. of desk depth, leaving 20–24 in. of usable desktop depth in front of the arm base. A 30 in. deep desk is recommended for monitor arm use. OfficeFurniture2go.com supplies monitor arms compatible with all desk depths — call 1-800-460-0858.