So I got into a bit of a spat with my players, having discovered that ability enhancements are limited to belt and helm slots, physical and mental respectively (this is my first PF campaign since 3.5).
Is this an official rule or simply a guideline? I haven't found too much on the subject searching the forums...
Many thanks!
Pathfinder does not have any Body Slot Affinity rules like 3.5 had. (3.5 Body Slot Affinities)
Nothing prevents a custom pair of magical boots from granting a +2 Intelligence bonus, or a magic ring that grants +2 Strength. Its just that, by default, each magic item comes in a specific form. Custom magic items can have any effect in any slot, however.
Want to really get 'into a bit of a spat' with players?
Ban ability enhancer items of all stripes.
My players tried for years to get me to budge on this - despite being able to overcome every challenge put in front of them (they just couldn't rely on unbeatable save DCs or damage into the upper 80s range/warrior/round). It also allowed them to fashion much mroe interesting items for their PCs, imo.