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Recommended Pressures on Plyform

The APA guide recommends maximum pressures for Plyform Class I and Structural 1 Plyform. Calculation of these pressures is based on a deflection limitation of 1/360th or 1/270th of the span, or shear or bending strength, whichever is the lowest load value.

These recommended concrete pressures are also influenced by the number of continuous spans in the formwork design and whether the main strength axis of the Plyform is parallel or perpendicular to the supports.

For Plyform Class I

Performance Category

Span   Rating for Unsanded Panels

15/32

19/32

23/32

32/16

40/20

48/24

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