What is a joist hanger?
A metal bracket that fastens the end of a joist to a beam or ledger board, holding it at the correct height and angle for deck framing.
A joist hanger is a metal bracket that connects the end of a joist to a beam, ledger board, or band board. Rather than resting the joist on top of the supporting member (which causes the deck to settle unevenly over time), the hanger suspends the joist at a consistent height, with fasteners driven through pre-drilled holes on both sides of the bracket.
Joist hangers come in two material grades. Galvanized steel offers good corrosion resistance for the wet climate of Greater Charlotte and costs less. Stainless steel resists rust even more effectively and lasts longer in high-moisture environments like shaded or frequently wet areas. Building inspectors in Mecklenburg County and surrounding areas require joist hangers on any deck that ties into a house ledger or sits above grade with structural beams, because they distribute load more evenly and prevent the joist from rotating or twisting under weight.
The hanger also makes code compliance easier. Unlike nailing a joist directly to a ledger (which often fails under tension), a proper hanger with the correct number and size of nails or bolts meets North Carolina residential building standards for deck safety. Professional deck builders in the Charlotte area select hanger types based on joist size and wood species, ensuring the deck will pass final inspection and perform safely for decades.