Because truck drivers spend so much time on the road, and large trucks generally appear to be so well-equipped,
you have to wonder whether these trucks have ever had toilets.
Most times, big rigs do not come with bathrooms, so drivers either use public bathrooms or invest in a portable toilet that they can store in the truck.
There are times that drivers of semi trucks use bags, wide-mouth bottles, or a portable toilet to relieve themselves inside their trucks.
A truck driver may spend his 10-hour break in the truckstop, fill his truck, and then take a shower in a private restroom with free showers.
Since used semi trucks have sleeping compartments, this means
that a driver can take breaks or sleep in them while they are parked at legal semi-truck and trailer parks.
Some super-modern, customized, or luxurious semi trucks actually do come with bathrooms built-in,
and some truckers may purchase a portable toilet unit which they can keep in their trucks.
There are semi trucks with bathrooms installed, and they are usually found on the luxurious cabs, which are designed to fit.
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