Is a waffle slab cheaper than a strip footing system?

There’s no universal answer — cost comparison genuinely depends on your specific site and building design, since these two systems suit somewhat different scenarios rather than being direct, interchangeable substitutes for every project.

Waffle slabs are a slab-on-ground system suited to reactive soil, while strip footings support a suspended floor system — a genuinely different structural approach with its own cost drivers, not simply a cheaper or more expensive version of the same thing.

The genuinely useful comparison is against what your engineer recommends for your specific site’s soil and design, since comparing quotes for two systems that aren’t both equally appropriate for your site isn’t a meaningful comparison.

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