FORTNITE – Upgrading Walls/Stairs/Floors (Building Tips and Important Skill Tree Points)
Upgrading Walls in Fortnite is a little bit hidden in the large skill tree and not explained at all. But it is a very important defense skill once you hit about level 15.
Two Building upgrade skill can be found in the first skill tier. Each one gives you the option to upgrade once. Which means you can build a wall for example and reinforce it 2 times for addition cost.
The defense for these will go up and gives your walls/stairs/floors a new shinier skin.
You can also upgrade the defenses your teammates built, so this skill will become very important later in the game.
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