Stud — What It Is, Where Used, and Replacement Guide

A stud is a vertical framing member in a wall that supports sheathing, drywall, and loads carried through the wall.

What It Is

Studs form the basic skeleton of framed walls. They define the wall cavity, support finishes on both sides, and help carry roof, floor, and wind loads down through the structure.

In most houses they are spaced at regular intervals, which is why stud locations matter for hanging cabinets, TVs, and heavy fixtures.

Types

Common types include wood studs, metal studs, king studs, jack studs, cripple studs, and engineered studs used in specialty framing. Wall thickness and load requirements determine the stud size and spacing.

Where It Is Used

Studs are used in exterior walls, interior partitions, garage walls, basement framing, and many soffits and chases. Any framed wall assembly depends on studs as its main vertical members.

How to Identify One

Behind finished walls, studs are usually found with a stud finder, by measuring from corners and outlets, or by seeing fastener lines in unfinished framing. In an open wall, they appear as the evenly spaced vertical members between the top and bottom plates.

Replacement

Replacement is needed when a stud is rotten, badly split, insect-damaged, over-notched, or cut during a remodel in a way that weakens the wall. Structural repairs often involve sistering or replacing the damaged stud while maintaining the wall load path.