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Crew jumped from 8 to 22. Do we need a second porta potty?

Brad L.asked 4 viewsHow Many UnitsHow many unitsOshaConstruction site1926 51Standard unitJob site

We started a framing job with eight guys and one standard porta potty on the lot. Subcontractors rolled in this week and we are at about 22 people on site most days. That one unit is getting slammed by midafternoon, and somebody already asked if we are even OSHA compliant anymore.

Does OSHA 1926.51 say we need a second toilet at this headcount, or is one still enough if it gets weekly service? The lunch line is the real problem more than the smell so far.

Open-air site, no building bathrooms we can use. Would a urinal station count toward the toilet number, or do we just need another full standard unit? Looking for what people actually do when a crew grows mid-job without tearing up the weekly contract.

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Tyler R.Columbus, OH

Once your headcount hits 20 or more, OSHA 1926.51 moves you out of the single-toilet row.

Under that rule, 20 or fewer workers need one toilet. At 20 or more, the table calls for one toilet seat and one urinal per 40 workers. Your jump from 8 to 22 crosses that line, so one toilet-only standard unit is not enough on paper even when weekly service visit stays on schedule. Service keeps the tank usable. It does not rewrite the headcount table.

A urinal station can cover the urinal half while you keep the unit you already have for the toilet seat. Adding a second full standard unit also works if you would rather not run a separate urinal fixture. Check what you already have on the pad: some standard units include a wall urinal and some are toilet-only. If yours is toilet-only, you still need that urinal piece under the 20-or-more row.

On framing lots I have seen the midday line show up before anyone opens the OSHA book. Fix the fixture count first, then the lunch rush usually calms down.

  • Carl D. We crossed that 20-headcount line mid-job last summer too. Dropping a urinal station beside the toilet-only unit we already had cleared the lunch line without waiting on another full unit delivery.
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Jake W.Denver, CO

Yes, at 22 people you need more than one toilet-only unit under OSHA 1926.51.

Tyler nailed the table. What I would add from jobs where the headcount jumped mid-frame is the practical check before you call for another full standard unit. Open the door on what you already have. If that unit is toilet-only with no wall urinal, you are short the urinal side of the 20-or-more row even if the tank gets weekly service visit. A separate urinal station next to it covers that half without waiting on a second full unit delivery, which is what we did when a crew went from teens into the twenties overnight.

Service frequency is the other piece people forget. Weekly pump was fine at eight guys. At 22 the tank fills faster and the midday line gets worse even when the fixture count is right. Ask the supplier to bump service while the subcontractors are on site, then drop back when the headcount falls. A urinal station does count toward the urinal requirement in that table. It does not replace the toilet seat you already have.

We ran that combo on two residential framing lots last year. Fixture count first, then service cadence. The lunch line calmed down once both were fixed.

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