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Plate Armor

Plate armor consists of shaped, interlocking metal plates that cover the entire body. This is the best non-magical armor in D&D 5e, providing an exceptional AC of 18. The suit includes gauntlets, heavy leather boots, a visored helmet, and thick layers of padding underneath. Donning a suit of plate armor is a time-consuming process requiring assistance. Plate armor is the signature protection of legendary knights, elite paladins, and wealthy warriors. The exceptional cost reflects the masterwork craftsmanship required to create such armor.

At a Glance

Type
Armor
Cost
1500 gp
Weight
65 lbs
Heavy ArmorStealth Disadvantage

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MechanicsCommon MistakesDM TipsFAQSources

Mechanics

Armor Class: 18. Heavy armor doesn't let you add your Dexterity modifier to your AC. You can don plate armor in 10 minutes and doff it in 5 minutes. Donning with help reduces time by half. Strength Requirement: 15 (if you don't meet this, your speed is reduced by 10 feet). Stealth Disadvantage: You have disadvantage on Dexterity (Stealth) checks while wearing this armor. Wearing armor without proficiency imposes disadvantage on ability checks, saving throws, and attack rolls involving Strength or Dexterity, and prevents spellcasting.

Common Mistakes

Common Mistake
Not realizing plate armor costs 1,500 gp (it's typically not available until mid-levels)
Common Mistake
Forgetting the Strength 15 requirement (higher than other heavy armor)
Common Mistake
Thinking plate armor makes you invincible (AC 18 is great but not immunity)
Common Mistake
Not applying stealth disadvantage in all situations
Common Mistake
Forgetting that donning plate takes 10 minutes (you can't quickly equip it)
Common Mistake
Assuming plate armor prevents swimming (it's difficult but possible with Athletics checks)

DM Tips

DM Tip
Plate armor is a major milestone reward - make acquiring it feel significant
DM Tip
The 1,500 gp cost typically means characters get this around levels 5-10
DM Tip
AC 18 makes characters very hard to hit - balance encounters accordingly
DM Tip
Consider offering plate armor as loot from a fallen knight or ancient armory
DM Tip
The Strength 15 requirement excludes many builds from using it effectively
DM Tip
Magical plate armor (+1, +2, +3) is legendary treasure
DM Tip
The 65 lb weight matters for characters tracking encumbrance
DM Tip
Plate armor is instantly recognizable - stealth missions become very challenging
DM Tip
NPCs in plate armor are elite enemies - telegraphs threat level to players

Frequently Asked Questions

Sources & Further Reading