Document ID: chunk:federal_register_of_legislation:F2016L00411:reg:63:p5
Version: federal_register_of_legislation:F2016L00411
Segment Type: reg
Provision Reference: reg 63 (pt 5/6)
Character Range: 88871–91478

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 x 45
4.0 m                       2 nos 90 x 45
3.0 m                       2 nos 90 x 45

3.6 Ledgers and horizontal ties
Each longitudinal row of standards should be joined on the inside face with horizontal ties, with their greater cross-sectional dimension vertical and extending the full length of the scaffold. At the working platform a ledger should perform the function of a horizontal tie.
All horizontal ties should be:
    * a minimum size of 70 x 45 or 90 x 35 MGP 10 seasoned pine
    * located at a maximum centre-to-centre vertical spacing of 2 metres with the lowest tie being not greater than 300 mm above the sole plate.
A ledger of minimum size 120 x 35 F17 KDHW should be fixed to the inside of each standard at the level of the working platform. Joints in ledgers and horizontal ties should be staggered and should not occur:
    * in vertically adjacent members in the same bay
    * in the same member in the same bay
    * in the end bays of a scaffold.
Joints in ledgers and horizontal ties should be butted and spliced.

3.7 Putlogs
The scaffold should be fixed in the transverse plane at the working platform lift. In this type of scaffold design, the putlogs also perform the function of tying the scaffold to the building. Putlogs should be:
    * located at each standard
    * fixed to their support in accordance with Section 3.4 of this appendix
    * be continuous along their length.
The cross-sectional dimensions and the maximum span of putlogs are set out in Table 6.

Table 6 Putlogs

Span of putlog  Minimum sizes and grading
2.4 m           140 x 45 F17 KDHW
1.8 m           140 x 45 F17 KDHW
1.2 m           150 x 50 F7 Oregon

3.8 Bracing
Longitudinal braces should be fixed in each lift of the scaffold to the outside of the outer row of standards, with the distance between braced bays not exceeding three bays in length.
Braces should be fixed diagonally as close as possible to the intersection of the standards and ledgers and, in the first lift, the lower end of a brace should be fixed as close as possible to the intersection of the standard and its soleplate.
Braces should be a minimum of F8 unseasoned hardwood or MGP 10 seasoned pine with nominal cross-sectional dimensions not less than 100 x 38 mm.

3.9 Splicing of members
Where members are spliced, such joints should be butt