Document ID: chunk:federal_register_of_legislation:F2016L00411:reg:63:p4
Version: federal_register_of_legislation:F2016L00411
Segment Type: reg
Provision Reference: reg 63 (pt 4/6)
Character Range: 86376–89140

duty works such as bricklaying.

3.1 Configuration
The configuration of scaffolds described in this section is shown in Figure 26.
For scaffolds erected in accordance with this section, the primary loads are transferred directly from the working platform to the putlogs at each standard. These putlogs transfer the loads directly to the standard at the outer face and to the building frame at the inner face. Intermediate putlogs, supported by a ledger, are only required where it is necessary to ensure planks do not exceed their allowable span or where planks are butted along the working platform.

Figure 26 Timber scaffold (single pole – high first lift)

3.2 Scaffold components
Load bearing structural members used or intended to be used in the construction of a timber scaffold in accordance with this section, including standards, guardrails, midrails, putlogs, braces, ties and rakers should have dimensions and stress gradings as specified in Sections 3.5 to 3.9.
All components intended for use in the construction of a timber scaffold should be visually inspected for defects prior to each use and components found to be in an unserviceable condition must not be used.

3.3 Working platform
Working platforms supported by timber scaffolds constructed in accordance with this section are classified as:
    * light duty, for loads (persons and materials) of up to 225 kg per bay
    * medium duty, for loads (persons and materials) of up to 450 kg per bay.

3.4 Fixings
Any reference to the use of screws in this section means the use of Type 17 self-drilling screws complying with AS 3566. Screws should be long enough to have a minimum embedment length of 35 mm into the supporting member.
All fixings for ledgers, horizontal ties, putlogs and braces should be not less than 2 nos 12 gauge screws to each standard.
Putlogs at each standard should bear directly on the standard and be fixed to the standard as shown in Figure 27. The inside end of these putlogs should be fixed to the building rafter with minimum one M12 bolt. Intermediate putlogs should be nailed to the upper surface of the ledger to secure them against dislodgement.
Figure 27 Timber scaffold (single pole – high first lift) details

3.5 Standards
Standards should have a stress grading not less than:
    * F8 unseasoned hardwood
    * MGP 12 seasoned pine.
The minimum cross-sectional dimensions and should be in accordance with Table 5.
The maximum longitudinal spacing of standards should be 2.7 metres.
Except as noted in this section, standards should be constructed in accordance with Section 2.4 of this appendix.

Table 5 Standards

Height to working platform  Minimum (nominal) sizes

6.0 m                       2 nos 120 x 45
5.0 m                       2 nos 120