What size U-hook rod do you need for a 2-inch pipe?

For a 2-inch pipe, the correct size for a U-hook rod is 5/16". This size ensures that the U-hook rod can adequately support the weight of the piping system while providing sufficient strength and stability. U-hook rods are typically selected based on the diameter of the pipe they are meant to support, and using the appropriate size is crucial for maintaining the integrity of the fire sprinkler system.

Choosing a U-hook rod that is too small can lead to insufficient support, risking failures or sagging in the piping. Conversely, selecting a rod that is too large may lead to unnecessary cost and could complicate installation without providing any functional benefit. Therefore, for a 2-inch pipe, the 5/16" option strikes the right balance between support and practicality.