Strength Perks - Fallout 4
Strength is a measure of your raw physical power. It affects how much you can carry, and the damage of all melee attacks.

Strength
Strength is a measure of your raw physical power. It affects how much you can carry, and the damage of all melee attacks.

Iron Fist
Strength Level 1
Rank 1: Channel your chi to unleash devastating fury! Punching attacks do 20% more damage to your opponent.
Rank 2: Punching attacks now do 40% more damage and can disarm your opponent.
Rank 3: Punching attacks now do 60% more damage. Unarmed Power Attacks have a chance to cripple one of your opponent limbs.
Rank 4: Punching attacks now do 80% more damage. Unarmed Power Attacks have an increased chance to cripple one of your opponent limbs.
Rank 5: Punching attacks now do double damage. Criticals in V.A.T.S. will paralyze your opponent.

Big Leagues
Strength Level 2
Rank 1: Swing for the fences! Do 20% more melee weapon damage.
Rank 2: You now do 40% more melee damage and gain a chance to disarm your opponent.
Rank 3: You now do 60% more melee damage and gain an increased chance to disarm your opponent.
Rank 4: You now do 80% more melee damage and hit all targets in front of you.
Rank 5: You now do double damage with a melee weapon, and gain a chance to cripple your opponent, or grand slam their head clean off!

Armorer
Strength Level 3
Rank 1: Protect yourself from the dangers of the Wasteland with access to base level and Rank 1 armor mods.
Rank 2: You gain access to Rank 2 armor mods.
Rank 3: You gain access to Rank 3 armor mods.
Rank 4: You gain access to Rank 4 armor mods.

Blacksmith
Strength Level 4
Rank 1: Fire up the forge and gain access to base level and Rank 1 melee weapon mods.
Rank 2: You gain access to Rank 2 melee weapon mods.
Rank 3: You gain access to Rank 3 melee weapon mods.

Heavy Gunner
Strength Level 5
Rank 1: Thanks to practice and conditioning, heavy guns do 20% more damage.
Rank 2: Heavy guns now do 40% more damage, and have improved hipfire accuracy.
Rank 3: Heavy guns now do 60% more damage. Hip fire accuracy is improved even more.
Rank 4: Heavy guns now do 80% more damage, and have a chance to stagger your opponent.
Rank 5: Heavy guns now do double damage.

Strong Back
Strength Level 6
Rank 1: What are you, part pack mule? Gain +25 to carry weight.
Rank 2: You now have +50 to carry weight.
Rank 3: When over encumbered, you can use Action Points to run.
Rank 4: When over encumbered, you can fast travel.

Stead Aim
Strength Level 7
Rank 1: Stay on target! Hip-fire accuracy is improved when firing any gun.
Rank 2: Hip fire accuracy is improved even more when firing any gun.

Basher
Strength Level 8
Rank 1: Get up close and personal! Gun bashing does 25% more damage.
Rank 2: Gun bashing now does 50% more damage and possibly cripples your opponent.
Rank 3: Gun bashing now does 75% more damage and has an increased chance to cripple your opponent.
Rank 4: Gun bashing does double damage and has an increased chance to cripple your opponent. It may also inflict a Critical Hit.

Rooted
Strength Level 9
Rank 1: You're part tree! While standing still, you gain +25 Damage Resistance and your melee and unarmed attacks deal 25% more damage.
Rank 2: While standing still, you now gain +50 Damage Resistance and your melee and unarmed attacks deal 50% more damage.
Rank 3: While standing still, you may automatically disarm enemies that use melee weapons against you.

Pain Train
Strength Level 10
Rank 1: Choo choo! All aboard! While wearing Power Armor, sprinting into enemies hurts and staggers them. (Robots and oversized enemies are immune to stagger.)
Rank 2: Sprinting into enemies while wearing Power Armor now causes severe damage and a more powerful stagger.
Rank 3: Sprinting into enemies while wearing Power Armor now causes massive damage and knocks them down. Impact landing near enemies inflicts even more damage.