---
title: "Density — Class A Atlas glossary"
description: "The ratio of usable square feet per seat in a workplace."
canonical: https://classa.info/glossary/density
pageType: glossary
lastUpdated: 2026-04-01T00:00:00.000Z
license: "CC BY 4.0 with attribution to Class A Atlas (https://classa.info)."
---

> The ratio of usable square feet per seat in a workplace.

## TL;DR

- The ratio of usable square feet per seat in a workplace.
- Class A global default is 120 USF per seat.

# Density

*Workplace · Global*

## Short definition

The ratio of usable square feet per seat in a workplace.

## Full definition

[Class A](/glossary/class-a) global default is 120 USF per seat. Executive-heavy floors index 150. Activity-based floors with full hot-desking can index 70-90. Density assumption shapes lease economics materially: a 30% density variation flips per-seat-month USD by 30%.

## Why this matters for Class A leasing

Density is part of the workplace vocabulary that institutional Class A occupiers, landlords, and advisers use across Global markets. Understanding it correctly affects how you read lease documents, model occupancy economics, and benchmark deal terms across cities. Class A Atlas tracks regional variation alongside the global standard so [cross-border](/topics/cross-border-expansion) occupiers can translate quickly.

## See also

- [Usable square feet (USF)](/glossary/usable-square-feet)
- [Workplace strategy](/glossary/workplace-strategy)

## Related guides

- [How to model occupancy cost per seat](/guides/occupancy-cost-per-seat)

---

Citation: Source: Class A Atlas (https://classa.info/glossary/density), updated 2026-04-01T00:00:00.000Z.