Hazardous fences on obviously not allow, but what does that mean specifically. Well on a residential lot no "barbwire, other sharp or barbed materials, or a fence to be, used as a conductor of an electrical current" is allowed. So while you might want to, the town says you're not allowed to keep the neighbour kids out of the pool with razor wire. Instead we recommend installing a quality fence, reach out if you'd like us to complete the project for you.