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OSHA 1926.51 for 90 workers on a November 2026 site: toilets needed?

Hector V.asked 0 viewsConstruction & Job SitesOsha 1926 51Service frequencyLong term rentalConstruction siteAda unit

OSHA 1926.51 requires one toilet and one urinal per 40 workers for a crew of 90. That means three toilet seats and three urinals minimum. You also need a handwash station or hand sanitizer dispenser with each cluster.

Unit types and placement: Use a cluster of standard portable toilets for the main crew. Add at least one ADA-compliant unit to meet the ADA cluster rule. Place them on level ground with truck access within 25 feet for the vacuum truck. Stake units down if the site is windy.

Service frequency: Order weekly service visits for pumping and cleaning. In cold weather, the operator adds antifreeze to the holding tank to prevent freezing. Vandalism is a risk on open sites; use locking doors if needed.

For a long-term site like this, consider a restroom trailer if you have power and water hookups. It reduces complaints and handles high traffic better. But it costs more and needs a flat spot for leveling.

What's your site layout? Any tight spots or special needs?

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Ray M.Dallas, TX

You need three toilet seats and three urinals for 90 workers under OSHA 1926.51. That means a minimum of three standard portable toilets and three portable urinals, or six standard units if urinals aren't separate. Add one ADA-compliant unit to meet the ADA cluster rule. Include a handwash station or hand sanitizer at each cluster.

Place units on level ground with clear truck access for weekly service visits. In November, operators add antifreeze to the holding tank to prevent freezing. For a long-term site, a restroom trailer improves comfort but requires power, water, and leveling. Costs depend on unit type, service frequency, and site conditions like distance or tight access.

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