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Archives of Nethys

Archives of Nethys

Pathfinder RPG (1st Edition) Pathfinder RPG (2nd Edition) Starfinder RPG

Rules Index | GM Screen | Player's Guide
Player Core / Chapter 8: Playing the Game / Movement / Tactical Movement

Size, Space, and Reach

Source Player Core pg. 421 2.0
Creatures and objects of different sizes occupy different amounts of space. The sizes and the spaces they each take up on a grid are listed in the Size and Reach table (see below). The table also lists the typical reach for creatures of each size, for both tall creatures (most bipeds) and long creatures (most quadrupeds). See here for more about reach.

The Space entry lists how many feet on a side a creature's space is, so a Large creature fills a 10-foot-by- 10-foot space, or 4 squares on the grid. (If you need to measure in three dimensions, their space is also 10 feet high.) Sometimes part of a creature extends beyond its space, such as if a giant octopus is grabbing you with its tentacles. In that case, the GM will usually allow attacking the extended portion, even if you can't reach the main creature.

Table 9-1: Size and Reach

SizeSpaceReach (Tall)Reach (Long)
TinyLess than 5 feet0 feet0 feet
Small5 feet5 feet5 feet
Medium5 feet5 feet5 feet
Large10 feet10 feet5 feet
Huge15 feet15 feet10 feet
Gargantuan20 feet or more20 feet15 feet

A Small or larger creature or object takes up at least 1 square on a grid, and creatures of these sizes can't usually share spaces except in situations like a character riding a mount.

Multiple Tiny creatures can occupy the same square. At least four can fit in a single square, though the GM might determine that even more can fit. Tiny creatures can share a space occupied by a larger creature as well. If a Tiny creature's reach is 0 feet, it must share a space with a creature in order to attack it.