What are the recommended specifications for installing concrete piers for a house foundation?

The recommended specifications for installing concrete piers for a house foundation include using a minimum diameter of 12 inches, a minimum depth of 4 feet, and spacing them no more than 6 feet apart. Additionally, the concrete mix should have a minimum strength of 3,000 psi and be reinforced with steel rebar. It is also important to ensure proper drainage and soil compaction before installing the piers.