Surface area calculation
of hollow-core slabs
S U R F A C E A R E A C A L C U L A T I O N
O F H O L L O W - C O R E S L A B S
The principles outlined in these instructions are used to calculate the surface area A of
hollow-core slabs, which is used for price calculation of slabs. These principles can also be
used for calculating the surface area of shell slabs installed in hollow-core slab lines.
The surface area of un-cut hollow-slabs (Figure 1) is calculated according to the formula
A=1,2xL (m2).
The surface area of longitudinal sections of the slabs (Figure 2) with a width of b>600 mm is
calculated according to the formula A=1,2xL (m2). Slabs with a width of b£600 mm are
calculated according to the formula A=0,6xL (m2).
Bevelled edges or openings will not be reduced from the surface area of a slab (Figure 3).
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