OSHA-compliant fall protection D-rings must be positioned on a full-body harness to distribute forces across the shoulders, chest, pelvis, and thighs, with the dorsal (back) D-ring centered between shoulder blades for fall arrest. Other locations include sternal (chest) for climbing/retrieval, side (hips) for positioning, and shoulder D-rings for confined space rescue. Here are each of those categories explained.
Key D-Ring Locations and Uses
- Dorsal D-Ring (Back): Located in the center of the back between the shoulder blades, this is the primary attachment point for fall arrest systems (lanyards or SRLs). It is designed to keep the user upright after a fall.
- Sternal D-Ring (Front/Chest): Located in the center of the chest, primarily used for ladder climbing systems or fall protection where the fall is limited to 2 feet or less.
- Side D-Rings (Hips): Positioned on the left and right hips, these are used exclusively for positioning systems and work restraint (e.g., rebar assembly), not for fall arrest.
- Shoulder D-Rings: Located on the shoulders for rescue, retrieval, or confined space entry, often used with a spreader bar to keep the worker upright.
Proper D-Ring Positioning Guidelines
- Dorsal Adjustment: The D-ring should be positioned just below the neck between the shoulder blades. If too high, it may cause head injury during a fall; too low, it may fail to keep the user upright.
- Harness Inspection: Always verify that the D-ring is secure and the harness is properly fitted so the dorsal ring remains in the center of the back.
Which style harness do you need?
It depends on the type of work you’re doing. This blog post helps explain some of the basics, but you can always contact our safety experts to help you assess your needs. We are happy to help!