What is the Box Slab?

Traditional foundations are inefficiently designed, requiring large volumes of concrete and weeks of site preparation. This causes homeowners and developers to deal with higher construction costs and longer schedules.

What makes the Box Slab distinct is the use of cardboard box forms to reduce the volume of concrete required. Most foundation systems pour concrete with a uniform depth throughout the slab in order to withstand structural loads.

The Box Slab replaces a significant amount of concrete by filling that space with cardboard box forms. These boxes are placed on top of a thin mud slab, creating an easy surface for contractors to work on without any major excavation or soil fill. Cardboard boxes are placed with enough space in between them to run post tension cables, as well as any M.E.P. infrastructure.

Once the boxes and other material are set in place, concrete is poured to complete the slab. This creates a structurally solid foundation with the desired slab depth using significantly less concrete than traditional foundations.  The Box Slab is simply the faster, smarter, more efficient solution to foundation design.


Increased Strength

A traditional slab on grade foundation has beams placed between 10-15’ apart on center. This leaves large spans between beams that are unable to withstand high pressure, leading to issues such as cracking, slumping, and displacement. The Box Foundation uses concrete beams placed less than 5’ apart on center, creating a very rigid slab that will not bend or break.

Reduced Material Usage

By using cardboard box forms to take up space inside the slab, less concrete needs to be poured to achieve the same slab depth. The Box Slab uses a more efficient allocation of materials to create a slab that provides high structural strength at a lower cost than traditional foundations.

No Excavation or Fill

The rigidity of the Box Slab prevents soil expansiveness from displacing or shifting the foundation. The system also uses a mud slab to create a flat, convenient surface for contractors to work on, which minimizes the effects of surficial conditions.

Faster Schedules

Concrete pour scheduling and coordination is often a time consuming process in foundation construction.  The Box Foundation system requires only 2 pours, and takes less time for the concrete to form. On average, customers can expect to save 15 days by using the Box Foundation method.