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Our flagship product, Spancrete® Hollowcore is a precast, prestressed concrete slab used primarily for structural roof and floor applications. The concrete is cast over a bed of prestressed wire strands, producing an incredibly strong product that tolerates high load capacities and can be used to cover long spans. The Hollowcore panels have continuous voids in them that reduce weight and cost, and also may be used for electrical or mechanical runs. Hollowcore also has excellent fire resistance.