Western stirrups are measured across the widest part of the inside tread base and by the neck width where they connect to the saddle fender. For standard adult western boots, a 5-inch tread width is standard, though overshoe and winter boots often require 5.25 or 5.5-inch widths to allow clean, snag-free clearance.

Aluminum stirrups are incredibly lightweight, sleek, and easy to clean, making them a favorite for speed events like barrel racing where ounces matter. Wood stirrups, especially when wrapped in rawhide or leather, provide a traditional look, a heavier weight that keeps them swinging predictably, and natural dampening that absorbs some arena vibration.

Roper stirrups feature a wider, flatter, and thicker tread base (often 3 inches deep) to give ropers a solid platform to stand up and brace during cattle work. Barrel racing stirrups are narrower, feature a slighter 2-inch tread depth, and are constructed from lightweight materials with high-grip rubber or textured treads to prevent slipping during sharp turns.