What do stair balusters attach to?
Replacing Stair Balusters: What They Attach To and Why It Matters What do stair balusters attach to? Stair balusters, the vertical posts supporting the handrail, typically attach at two points: Bottom: Into the tread (the horizontal step) or the riser (the vertical part between steps) using a dowel, a mortise and tenon joint, or sometimes