The Port-a-Fort is an item in Fortnite Battle Royale.
Introduced in patch V.3.5
Lets you build a defensive fort instantly even if you don't have materials.
What it does
Builds a 1 by 1, 3 tile high base made of metal with an upside down pyramid on top
How to use
You throw the Port-a-Fort like a grenade and it quickly builds a fort for defense.