Three 27-inch monitors on an L-shaped desk - primary segment fit guide

How this is calculated

To be upfront about the model: this page renders the primary working segment only. The desk is an L and the tool does not draw the full L-shape, so treat the 72-inch width as the straight run the monitors sit on. The return leg still does real work. It holds the PC, which keeps the weight off the main segment, and it gives you a second surface for reference material. The corner wedge behind the panels adds viewing depth, so a 30-inch (76 cm) deep main segment feels closer to 32 inches at the corner.

Verdict

Three 27-inch panels angled at 25 degrees span about 66 inches (168 cm), which fits a 66-72 inch (168-183 cm) L-shaped desk main segment with a few inches of clearance. This page models the straight working run as a rectangle, and the visualizer does not render the full L-shape, so read the 72-inch width as the primary segment length. The return leg pulls the PC and keyboard off the monitor segment, which keeps the load and clutter off the panels. The corner wedge behind the screens also adds effective depth, so a 30-inch (76 cm) deep main segment behaves more like 32 inches at the corner. A triple arm with a VESA 100x100 head reclaims stand depth and tames the three-panel cable run.