Braces must either be connected to the standards at every lift with swivel couplers, or to the ends of transoms with right-angled couplers. If connect to the ends of transoms then the transom itself must be fixed with right angle-couplers.

The main transoms can be fixed directly across to each pair of standards with right-angled couplers. Or, fixed to ledgers using putlog couplers, which must be fixed within 300mm from each pair of standards.

The main horizontal tubes are called ledgers which provide lateral support to the structure. Ledgers must be level and fitted inside of standards with right-angle, load bearing couplers. The vertical distance (lift height, ledger to ledger) varies due to the intended use of the scaffold. For a walk-through scaffold a vertical distance of 2 meters should be allowed to clear a headroom of 1.75 meters.