Three quarters cover in D&D 5e defines how much of a target is obscured by partial barriers such as low walls, furniture, or dense foliage. Understanding this rule helps you make smarter tactical choices during melee and ranged encounters.
Game masters use three quarters cover to balance line of sight, attack rolls, and positioning on the grid. This article breaks down how the rule works in practice, compares common scenarios, and shows how it affects damage and visibility.
| Cover Type | Obstruction | To Hit Penalty | Typical Examples |
|---|---|---|---|
| No Cover | Nothing between the target and attacker | None | Open battlefield, clear corridor |
| Half Cover | Half the target is obscured | +2 to AC and Dexterity saves | Low wall, counter, sturdy table |
| Three Quarters Cover | Three quarters of the target is obscured | +5 to AC and Dexterity saves | Barricade with stacked crates, thick tree trunk, narrow corner |
| Total Cover | Target cannot be seen or directly targeted | Cannot be targeted | Entire wall, door when closed, corner blocking line of sight |
How Three Quarters Cover Works in 5e
Three quarters cover occurs when at least three quarters of the target is blocked by an obstacle. In grid terms, this usually means that more than half the squares occupied by the target are obscured from the attacker’s perspective.
When a target has three quarters cover, attackers take a +5 penalty to attack rolls against it. This penalty also applies to Dexterity saving throws, reflecting how hard it is to accurately target or hit a target that is heavily obscured.
Tactical Use of Three Quarters Cover in Combat
Placing three quarters cover on the battlefield changes how characters approach positioning. Melee allies can stand partially behind obstacles while still maintaining line of sight to key enemies.
Ranged attackers must weigh the benefit of better positioning against the reduced chance to hit. Spells and attacks that require clear sight lines often become riskier or impossible to use effectively through three quarters cover.
Three Quarters Cover in Different Environments
Urban settings frequently feature three quarters cover in the form of low walls, broken doors, and stacked barriers. Characters can use these elements to duck in and out of range while staying partially protected.
In natural environments, thick tree trunks, boulders, and raised earthworks serve the same function. Understanding how your terrain interacts with line of sight lets you set ambushes and control engagement ranges more effectively.
Common Misconceptions About Three Quarters Cover
Some players assume that three quarters cover always blocks spells or ranged attacks entirely, but it only imposes penalties to hit. Line of effect and other restrictions still apply based on the specific abilities used.
Another misconception is that any barrier counts as three quarters cover. The degree of obstruction must be substantial; a thin curtain or waist-high fence may instead provide half cover or no cover at all.
Optimizing Positioning Around Three Quarters Cover
- Use partial obstacles to peek and shoot while staying mostly hidden.
- Coordinate with allies so one provides cover while the other attacks.
- Time your movements to take advantage of cover when enemy cooldowns are used.
- Choose spells and attacks that do not rely on precise line of sight when engaging targets behind heavy cover.
FAQ
Reader questions
Does three quarters cover block spells that require line of sight?
Three quarters cover does not automatically block spells, but it imposes a +5 penalty to attack rolls and Dexterity saves. If a spell requires a clear line of sight and the target is completely obscured, you may need to choose a different target or use an area effect spell.
What happens if part of the target is visible through a doorway?
If at least three quarters of the target is obscured by the doorway, it counts as three quarters cover. Attacks and Dexterity saves against the target gain a +5 penalty, even if the attacker can see a small portion of the target.
Can creatures with reach or thrown weapons ignore three quarters cover more easily?
Reach weapons and thrown weapons follow the same cover rules. The +5 penalty to hit applies unless the attacker has a special ability or feature that specifically negates or reduces penalties for attacking through cover.
How does three quarters cover interact with spells like banishment or teleportation?
Effects such as banishment or teleportation do not rely on attack rolls, so cover typically does not interfere. However, if the spell requires a physical target within line of sight, three quarters cover can prevent you selecting a target that is fully obscured from you.