Baluster & Slat Spacing

Railing length, mm Max post spacing, mm

Post width, mm Baluster width, mm

Largest gap allowed, mm Guard height, mm

Top rail depth, mm Gap under bottom rail, mm

Minimum guard height by code, mm

Length is the whole run, outer face of the first post to outer face of the last. Posts are spread evenly, then each bay gets its own equal gaps. Set the largest gap and minimum height from the code that applies to you.

Balusters per bay–

Equal gap–

Pitch, centre to centre–

Posts · bays–

Elevation

Gap detail at a post

Last gap in a bay

Quantities and checks

Item	Value	Check

Setting-out from the post face

Baluster	Edge from post	Centre from post