42 999817902 - 10/2022
Scaffold User Information Ringlock
Parallel Planks
Arrange the planks in a parallel fashion to allow the
Truss Ledger (highlighted in red) to support the load
from adjoining bays.
Plan of Parallel Plank Arrangement (Multibay)
The Truss Ledger must be checked to ensure it is capa-
ble of supporting the required duty rating. Refer to the
tables to determine when to replace a typical Ledger
with a Truss Ledger when using a parallel plank
arrangement.
Load Class 2 - 1.5 kN/m
2
:
Load Class 3 - 2 kN/m
2
:
Load Class 4 - 3 kN/m
2
:
A Truss Ledger
B Direction of Planks
C Ledger
D Truss Ledger Supporting Load from Adjoining Bays
E Standard
C
A
E
B
D
981 - -0179 322
Bearer
(Transom)
Length [m]
Bay Length [m]
0.73 1.09 1.40 1.57 2.07 2.57 3.07
0.73 Ledger Ledger Ledger Ledger Ledger Ledger Ledger
1.09 Ledger Ledger Ledger Ledger Ledger Ledger Ledger
1.40 Ledger Ledger Ledger Ledger Ledger Ledger Ledger
1.57 Ledger Ledger Ledger Ledger Ledger Ledger Ledger
2.07 Ledger Ledger Ledger Ledger Ledger Ledger Ledger
2.57 Ledger Ledger Ledger Ledger
Truss Truss Truss
3.07 Ledger Ledger
Truss Truss Truss Truss Truss
Bearer
(Transom)
Length [m]
Bay Length [m]
0.73 1.09 1.40 1.57 2.07 2.57 3.07
0.73 Ledger Ledger Ledger Ledger Ledger Ledger Ledger
1.09 Ledger Ledger Ledger Ledger Ledger Ledger Ledger
1.40 Ledger Ledger Ledger Ledger Ledger Ledger Ledger
1.57 Ledger Ledger Ledger Ledger Ledger Ledger Ledger
2.07 Ledger Ledger Ledger Ledger Ledger
Truss Truss
2.57 Ledger Ledger Ledger
Truss Truss Truss Truss
3.07 Ledger
Truss Truss Truss Truss Truss
Bearer
(Transom)
Length [m]
Bay Length [m]
0.73 1.09 1.40 1.57 2.07 2.57 3.07
0.73 Ledger Ledger Ledger Ledger Ledger Ledger Ledger
1.09 Ledger Ledger Ledger Ledger Ledger Ledger Ledger
1.40 Ledger Ledger Ledger Ledger Ledger Ledger Ledger
1.57 Ledger Ledger Ledger Ledger Ledger Ledger
Truss
2.07 Ledger Ledger Ledger Ledger
Truss Truss Truss
2.57 Ledger
Truss Truss Truss Truss Truss Truss
3.07
Truss Truss Truss Truss
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