Can I add an under-desk drawer to my L-shaped desk after the fact?

Yes — under-desk drawers mount to the underside of the desk surface using surface-bracket hardware, and commercial desktop panels (typically 3/4 to 1 inch thick with a solid MDF or particleboard core) support them well. Position the drawer 6–8 inches back from the front edge for comfortable reach from a seated position. MDF cores accept screw-mount hardware more uniformly than particleboard, so it's worth confirming your desktop material before drilling. Browse desk accessories at FindOfficeFurniture.com or call 888-719-4960.