Build significant bouncy houses on floor that is thoroughly clean, flat, and freed from sharp objects (if possible in addition to a carpet or even a tarp). Pavement or nicely-taken care of grass is ideal. The customized bounce house will have to even be weighted down or anchored. Basic safety https://digitalasset.us-lax-1.linodeobjects.com/HeroKiddo/Bounce-House-Company.html