Pole scaffolds are a type of supported scaffold in which every structural component, from uprights to braces to platforms, is made of wood. OSHA has standards for two kinds: single-pole, which are supported on their interior side by a structure or wall, and double-pole, which are supported by double uprights independent of any structure.
Because they have to be built from scratch and cannot easily be reused, pole scaffolds are considered old-fashioned and are rarely used today.
- When platforms are moved to the next level, the existing platform must be left undisturbed until the new bearers have been set in place and braced
- Where wooden poles are spliced, the following regulations apply
- The ends must be squared
- The upper section must rest squarely on the lower section
- Wood splice plates or scab plates must be provided on at least two adjacent sides, and must:
- Extend at least 2 feet on either side of the splice
- Overlap the abutted ends equally
- Have at least the same cross-sectional areas as the pole.
- Splice plates made of materials other than wood may be used, as long as they are of equivalent strength
- Pole scaffolds over 60 feet in height must
- Be designed by a registered professional engineer
- Be constructed and loaded in accordance with that design.