What's the OSHA rule for a 30-person crew on a 5-story build?

OSHA 1926.51 requires one portable toilet for a 30-person construction crew. The standard states that for 20 to 199 workers, you must provide one toilet seat and one urinal per 40 workers. Since 30 is fewer than 40, one standard unit meets the minimum.

Add an ADA-compliant unit. The ADA cluster rule applies when you have multiple units. If you place two or more units together, at least one must be wheelchair accessible. For a 30-person crew, one standard unit and one ADA-compliant unit is a common setup that covers both OSHA and accessibility requirements.

Consider a deluxe unit or restroom trailer. A five-story build means workers are up and down all day. A deluxe unit with a flushing toilet and sink or a small restroom trailer can reduce complaints and keep the site cleaner. These options cost more but improve morale on a multi-month project.

Service weekly, stake securely. Weekly service is standard. Place units on level ground with clear truck access for the vacuum truck. In high-wind areas, use staking and tie-downs to prevent tip-overs. For a residential build with no alcohol or food service, one standard and one ADA unit should handle 30 workers over 8-10 hour days.

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