What is the minimum diameter for a commercial garage drain?

The minimum diameter for a commercial garage drain is correctly identified as 4 inches. This specification is typically based on plumbing codes and standards that aim to adequately handle potential water runoff and waste generated in a commercial garage environment. A 4-inch diameter drain ensures sufficient water flow capacity, reducing the risk of flooding and helping to prevent clogs from grease, oil, and debris often found in such settings.

Using a drain with a smaller diameter may not efficiently manage the volume of water produced or accumulate solid materials, creating potential drainage issues. For commercial applications, maintaining appropriate drainage standards is essential to ensure safety and compliance with local regulations, which often stipulate the 4-inch minimum in commercial settings.

This standard reflects the need for durable and effective drainage solutions tailored to the demands of commercial garages.