2 years ago (edited)
equipping heavy armor on dwarves lowers their movement by 10 feet (2 squares), a penalty if one does not have STR 13/15. However dwarves are exempt from this rule according to 5e SRD. https://www.5esrd.com/races/dwarf/#Dwarf_Traits Race details > Dwarf traits "Speed. Your base walking speed is 25 feet. Your speed is not reduced by wearing heavy armor."