A: Hello, thank you for your question! Per the instructions, to fit an opening up to 41" you will use 1 medium and 1 small extension.
A: Yes, the gate can swing both directions. It also has stops if you do not want the gate to swing a certain direction.
A: Hello! The gaps between the bars are about 3 inches wide.
A: When installed the gate is 36 inches tall and can be extended between 29 and 47 inches wide.
A: The opening to walk through is approximately 21.5 inches wide.