Knockout Sizes

Knockout Size Chart

https://home4c.com/rigid.html

Conduit Fill

• Schedule 40 & 80 Conduit Fill - [1]
• 1" conduit can handle 3 2 gauge wires [2]
• How many wires can a 1" adapter hold?
• This table says 5 gauge 2 wires in EMT of 1" [3]
• Table for conduit size to 1.5" - 37 wires of 10 gauge, 61 of 12 ga [4]

Examples

• 1" conduit fits 3 wires of 2 gauge size, such as a wiring connection of 2/2/4 grid hookup [5]