Deck balusters – Guardrails protect people from falling down stairs and roofs. Building codes require handrails on stairs and decks that are more than 24 (60.96 cm) to 36 inches (91.44 cm) from the floor, depending on the municipality. The rails consist of a top rail and a bottom supported by balusters.
The code specifies that the maximum spacing between each baluster is usually 4 inches (10.16 cm). The appropriate space prevents a sphere 4 inches (10.16 cm) pass between the deck balusters. Keep even space between the balustrades along the rail length, requires simple mathematical calculations and a good tape.
Check with your local building permit to verify the specific codes for your area.
1. Measure the distance between the two extreme poles that hold the top rail.