how to calculate shield wall damage poe2

Shield Wall damage in PoE2 scales mainly from the armour on your shield and the gem’s own added physical damage per armour value. A simple way to estimate it is:

Base added phys≈(Shield Armour15)×Gem’s added phys per 15 armour\text{Base added phys}\approx \left(\frac{\text{Shield Armour}}{15}\right)\times \text{Gem's added phys per 15 armour}Base added phys≈(15Shield Armour​)×Gem’s added phys per 15 armour

For the current Shield Wall wording I found, the gem grants 6 to 8 added physical damage per 15 Armour on Shield , plus a small base off-hand physical damage value.

Simple example

If your shield has 1500 Armour :

• 1500÷15=1001500\div 15=1001500÷15=100
• 100×6=600100\times 6=600100×6=600 minimum added phys.
• 100×8=800100\times 8=800100×8=800 maximum added phys.

So the shield-based part of Shield Wall would be about 600–800 added physical damage before other multipliers.

What else affects it

Damage can also be increased by:

• Skill level and gem scaling.
• Physical damage modifiers.
• Sources that add damage to attacks.
• Effects that increase damage against enemies with fully broken armour.

Some build discussions also mention that wall segments can be shattered by slams, warcries, or Shield Charge, which is important because the explosion mechanics are part of how the skill actually deals damage.

Practical rule

A good quick rule is:

• More shield armour = more Shield Wall damage.
• Aim for a high-armour shield first.
• Then stack generic physical and attack damage scaling around it.

If you want, I can turn this into a clean damage calculator formula with your exact shield armour and gem level.