OSHA requires fall protection at 4 feet in general industry, 6 feet in construction, 10 feet on scaffolds, and 5 feet in shipyards and 8 feet in longshoring. Protection can be guardrails, safety nets, or personal fall arrest systems, and employers must train workers to recognize fall hazards and use the equipment correctly.
Key takeaways
- General industry: 4 feet. Construction: 6 feet. Scaffolds: 10 feet.
- Guardrail top rails sit at 42 inches (plus or minus 3) and must withstand 200 pounds of force.
- Personal fall arrest anchors must support 5,000 pounds per worker or be designed by a qualified person.
- Body belts can't be used for fall arrest; use a full-body harness.
- Fall protection training (29 CFR 1926.503) is its own requirement, separate from OSHA 10.
Fall protection heights by industry
| Setting | Protection required at | Standard |
|---|---|---|
| General industry (warehouses, plants, facilities) | 4 feet | 29 CFR 1910.28 |
| Shipyards | 5 feet | 29 CFR 1915 |
| Construction | 6 feet | 29 CFR 1926.501 |
| Longshoring | 8 feet | 29 CFR 1918 |
| Scaffolds (construction) | 10 feet | 29 CFR 1926.451 |
Regardless of height, OSHA requires protection when working over dangerous equipment or machinery, because a short fall onto a hazard can be just as deadly.
Acceptable fall protection systems
Guardrail systems
Guardrails are usually the best option because they protect everyone without depending on each worker to clip in. Key specs in construction:
- Top rail at 42 inches, plus or minus 3 inches, above the walking surface.
- Midrails, screens, or mesh between the top rail and the surface (midrails roughly halfway, at about 21 inches).
- Top rail must withstand 200 pounds of force applied outward or downward.
- Toe boards where tools or materials could fall on people below.
Personal fall arrest systems (PFAS)
A PFAS is an anchorage, a connector (lanyard or self-retracting lifeline), and a full-body harness. Requirements include:
- Anchorages that support 5,000 pounds per worker, or are designed and used under a qualified person's supervision with a safety factor of at least two.
- Rigged so a worker can't free fall more than 6 feet or contact any lower level.
- Body belts are not allowed for fall arrest. Use a full-body harness.
- Inspect the system before each use and remove any component that has arrested a fall.
- Have a rescue plan. A worker hanging in a harness needs to be reached quickly.
Safety nets
Nets must be installed as close as practical under the work surface, and never more than 30 feet below it, and they must be drop-tested or certified.
Other options
Depending on the work, OSHA also recognizes positioning devices, warning line systems and safety monitoring on low-slope roofs, controlled access zones, and covers for holes. Each has specific rules, and many only apply in limited situations.
Holes, skylights, and covers
Floor holes and skylights are some of the most overlooked fall hazards I see. Covers must:
- Support at least twice the weight of workers, equipment, and materials that may be on them.
- Be secured so they can't be displaced by wind, equipment, or workers.
- Be color-coded or marked "HOLE" or "COVER."
Ladders
Ladders are their own standard (and a top-cited one). The basics: extend portable ladders at least 3 feet above the landing, set them at the proper angle (about 1 foot out for every 4 feet up), keep three points of contact, never stand on the top step of a stepladder, and inspect ladders before use.
Training is a separate requirement
In construction, 29 CFR 1926.503 requires employers to train each worker who might be exposed to fall hazards, by a competent person, on:
- The nature of fall hazards in the work area.
- How to erect, maintain, inspect, and take down the fall protection systems used.
- How to use and operate guardrails, PFAS, nets, and other systems.
- The role of each worker in safety monitoring and fall protection plans.
The employer must keep a written certification of that training. "Fall protection - training requirements" is itself one of OSHA's ten most frequently cited standards.
From the field: When I teach fall protection on-site, we look at your actual anchor points, harnesses, and roof or deck conditions. That turns a generic lesson into something your crew can use the next morning.
Need fall protection training for your crew? Ask about a custom workshop alongside an OSHA 10 or 30 course.
Frequently asked questions
What is OSHA's 6-foot rule?
In construction, 29 CFR 1926.501 generally requires fall protection whenever a worker is on a walking or working surface with an unprotected side or edge 6 feet or more above a lower level.
What is the fall protection height for general industry?
4 feet. Under 29 CFR 1910.28, general industry employers must protect workers from falls of 4 feet or more to a lower level.
When is fall protection required on scaffolds?
In construction, workers on scaffolds more than 10 feet above a lower level must be protected by guardrails or personal fall arrest systems, depending on the scaffold type.
How high should a guardrail be?
The top rail must be 42 inches above the walking surface, plus or minus 3 inches, with a midrail roughly halfway between the top rail and the surface. It must withstand a 200-pound force applied outward or downward.
Does OSHA 10 count as fall protection training?
Not by itself. OSHA 10 covers fall hazards, but OSHA's fall protection training requirement calls for training on the specific hazards and systems used at your workplace, delivered by a competent person and documented.