Summary Building a multi-stage outdoor space requires installing the structural hardscapes—retaining walls or the patio footprint—first to eliminate mud and stabilize the property. Surviving Michiana clay requires an 11-inch excavation, non-woven geotextile fabric , and 8 inches of crushed clean stone to future-proof the surface for heavier phase-two additions. Skipping the fabric or utilizing a shallow base guarantees your phase-one patio will sink and separate before you ev
