waffle slab

construction

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Last updated

July 15, 2026

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A waffle slab is a type of reinforced-concrete slab used in architecture. It is characterized by a grid pattern of voids created by prefabricated hollow sheet-metal domes, forming a two-way ribbed structure. This design allows the slab to support loads equally along both axes, making it efficient for covering square modules. Waffle slabs save material while maintaining strength and are a variation of the pan joist system.12

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construction
Concrete
…of pan joists, called the waffle slab, uses prefabricated hollow sheet-metal domes to create a grid pattern of voids in a solid floor slab, saving material without reducing the slab’s strength. The simplest and most economical floor system is the flat plate, where a plain floor slab about 20 centimeters…
Read More
…of pan joists, called the waffle slab, uses prefabricated hollow sheet-metal domes to create a grid pattern of voids in a solid floor slab, saving material without reducing the slab’s strength. The simplest and most economical floor system is the flat plate, where a plain floor slab about 20 centimeters…
Read More