Dwarves cant use two-handed weapons. But a skinny elf , half his weight can. Strange.
Traditional "dwarf" weapons are horrible.
Battle axe- two handed for same damage as a longsword and you get no shield.
light warhammer- d4 damage- as much as a dagger, but twice cost & weight
warhammer- d6 damage and two-handed!!! What?!! Unusable by Dwarves.
In my campaign a battle axe is one handed, a two-handed battle axe is d10. A warhammer is d6 damage and can be thrown. A heavy warhammer is d8 damage and cannot be thrown. I hate to see every Dwarf chose a sword so as not to be disadvantaged in the game.
At low levels that extra damage or AC bonus from a shield can save your life.