Choose the space you can use.
A desk's listed width and depth describe its outer limits. A live edge can leave less room where your hands, keyboard or monitor actually sit.
Start with your work
Lay out your monitor, keyboard, pointing device, lamp and the papers you use. Measure that arrangement. Then mark the desk's likely position in the room, including the chair's movement and any door or drawer that opens nearby.
OSHA advises enough desk depth to place a monitor at least 20 inches from your eyes, along with clear leg space and room for frequently used items. That is a workstation check, not a fixed minimum depth for every desktop. Read OSHA's desk guidance ↗
Measure the narrowest working depth
A slab may be 30 inches deep at one end and much shallower where you type. Ask the maker for the minimum usable depth at the intended keyboard position. If the listing gives one depth, ask whether it is the maximum, average or minimum. Ask for a photograph of the actual slab when the desk is made to order.
Check the details that consume space
- A monitor arm needs a sound, flat clamp area. An irregular edge can make that area smaller.
- Drawers or a crossbar can reduce leg clearance even when the top is large.
- Wall clearance matters for cables and for any edge that projects beyond the base.
Once your measurements are ready, compare the listed desk sizes. Treat each listed depth as a starting point until the maker confirms the surface you will receive.