1910.25(b)(5)(i): Stair Platform Depth for Older Installations
For stair platforms installed before January 17, 2017, the usable platform depth must not be reduced to less than 20 inches (51 cm). This item is part of the rule for doors or gates that open onto a stair platform.
Key takeaways
- 1910.25(b)(5)(i) is part of OSHA's general industry standards (29 CFR Part 1910, Subpart D).
- OSHA cited it 12 times in the last 3 years, in 12 inspections, with $12,864 in current penalties.
- Most citations: OR (3), MD (3), TN (2).
- Related part: 1910.25(b) General requirements (207 citations).
- Free 5-minute toolbox talk for your crew below.
In this article
What this rule covers
29 CFR 1910.25(b)(5)(i) is one requirement inside 1910.25 Stairways, an OSHA general industry standard (Part 1910, Subpart D). The official text below is copied word for word from the Electronic Code of Federal Regulations (eCFR). The numbers, injury cases and training on this page show how OSHA enforces it on real job sites.
Official text
(i) Less than 20 inches (51 cm) for platforms installed before January 17, 2017; and 12 citations
Source: eCFR, text current as of 2026-10-15. Read all of 1910.25.
Where and how often it was cited
| Year | Citations |
|---|---|
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 4 |
Top states: OR (3), MD (3), TN (2), AL (1), NE (1)
Largest penalties
| Employer | Location | Penalty for this rule |
|---|---|---|
| OGLESBY PLANTS INTERNATIONAL, INC. | ALTHA, FL | $4,000 |
| MIDWEST STEEL WORKS, INC. | LINCOLN, NE | $2,903 |
| 317743051 - CRST EXPEDITED INC | SPRINGFIELD, OR | $2,186 |
| 317743259 - ARCHITECTURAL MILLWORK MFG CO | EUGENE, OR | $1,822 |
| 317735536 - JALA INVESTMENTS LLC | PORTLAND, OR | $1,153 |
Free toolbox talk
A 5-minute crew talk on 1910.25(b)(5)(i), plus alerts when this rule changes. Free.
OSHA interpretation letters
None exist. OSHA has not published a letter of interpretation for 1910.25(b)(5)(i).
Related parts of this rule
- 1910.25(b) General requirements 207 citations
- 1910.25(b)(3) 93 citations
- 1910.25(b)(1) 48 citations
- 1910.25(b)(7) 19 citations
- 1910.25(b)(5) 15 citations
- 1910.25(b)(2) 12 citations
- 1910.25(b)(4) 11 citations
Get your crew competent
Trainers on Black Belt Safety: Marc Harvey, Dana Reyes
Trainers and suppliers: feature your business on this rule for $25/month.
Frequently asked questions
What minimum platform depth applies to older stair platforms?
Not less than 20 inches (51 cm) for platforms installed before January 17, 2017.
Which platforms does this item cover?
Platforms installed before January 17, 2017.
What is this item part of?
The 1910.25 rule for doors or gates that open directly onto a stair platform.
About this page
Sources
- 29 CFR 1910.25 (eCFR), text current as of 2026-10-15
- U.S. Department of Labor enforcement data: OSHA inspections, citations and accident records, copied nightly; data as of 2026-10-20
3-year window. Federal OSHA only; state-plan rules are not counted. Plain-language text is a summary, not legal advice; the official text controls. Black Belt Safety is not part of OSHA or the Department of Labor.