What’s the difference between Monolithic and Stemwall foundations?

Monolithic slabs are foundation systems constructed as one single concrete pour consisting of typically a 4 inch thick concrete slab with interior thickened portions under load bearing walls and thickened at all perimeter edges. The advantages of monolithic slabs include:

  • faster overall construction time (typically)
  • quite strong, especially with the addition of steel and fiber-mesh reinforcement
  • can be further reinforced on lots with poor soil with the addition of Post-Tensioning (see section in FAQ’s)
  • Monolithic slabs are used in our homes built in the BRONZE and SILVER package

Stem-walls are foundation systems constructed in three components; a spread footing to transfer load to the underlying soil, a (typically) masonry foundation wall, and a poured slab.  Advantages of stem-wall foundation systems include:

  • less fill required for sloped lots (the foundation wall can built at different heights to accommodate a sloped lot)
  • a greater free-board distance from the top of slab to the surrounding grade of the lot can be accomplished giving the home a more pronounced appearance.
  • Less movement of slab edge and more accurate location of items stubbed up through the slab.
  • STEM-WALL foundations are available as upgrades in our BRONZE and SILVER packages, but are INCLUDED in homes built in our GOLD package

What’s the difference between Monolithic and Stemwall foundations? was last modified: August 29th, 2014 by Mike Cogdill