The fl oor should be a reinforced concrete slab with Compressive strength of minimum 25Mpa.
Reinforcement wire diameter 6mm x 200mm x 200mm square mesh F42 grade.
Minimum thickness of 100mm.
For a successful installation, it is important that the fl oor is fl at and level at the points where the posts
are bolted to the fl oor.
Maximum level differences are referred to in Figure 4.
FIGURE 2
When the fl oor slope is greater than the recommended difference (Figure 4) the four post foundation
plates must be levelled by either:
A LOCAL LEVELLING BY MEANS OF CONCRETE FOUNDATION BLOCKS
B BY SUITABLE PACKING UNDER POST FOUNDATION PLATES
Figure 4A shows the recommeded concrete foundation blocks.
FIGURE 3
A drive-on angle that is too acute (as illustrated) is to be avoided, as this condition can cause damage to
the underside of vehicles.
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