Pipe Size For Garage Floor Drain

The replacement piping shall be of the same nominal size as the existing piping.

Pipe size for garage floor drain. For example a 2 inch drain requires 3 14 inches of immediate connecting pipe. The minimum size for a floor drain is 2 inches in diameter. Square drains also sometimes round drains can range in size from 6 inches to 1 foot around. The minimum size is intended to make sure that even running at full capacity the pipe that the drain leads to will never be more than half full.

Square drains usually use pvc pipe for residential and steel for commercial purposes. The pvc drains are durable enough for any residential garage floor a steel one might be a better choice for a commercial garage. Trench drains also called channel drains can be used as garage floor drains as well. They range in size from 2 to 6 inches and are dependant upon the size of the hole in the floor shower or tub as well as the pipes that fit into the space underneath it.

The primary types of garage floor drains are square drains and trench drains. It can be larger but no smaller. Bell trap drains come in 6 8 and 12 inch square or round shapes. The replacement of building sewer and building drain piping by pipe bursting methods shall be limited to gravity drainage piping of sizes 6 inches 152 mm and smaller.

Nominal pipe size transverse area of pipe sq in minimum flow requirements interior areas sq in minimum flow requirements exterior areas sq in 1 2 04 3 06 4 08 2 3 14 4 71 6 28 3 7 06 10 59 14 12 4 12 60 18 90 25 20 5 19 60 29 40 39 20 6 28 30 42 45 56 60 8 50 25 75 38 100 50.