When builders refer to concrete foundations, there are actually two different types – poured concrete and concrete blocks (cinderblocks). Concrete block foundations were the norm 50 years ago, but have now been overtaken in popularity by poured concrete.

Learn how long you can expect each kind of foundation to last and other essential facts. (All figures are approximate.)

Poured Concrete Foundation

Lifespan: 200 years.

Construction: These foundations are poured, shaped, and cured on your building site in a fast, efficient process.The site must have access for aconcrete truck.

Usedfor: 72 percent of residential full-basement foundations today.

Advantages: Can be shaped according to any design plan. Has no joints, making it more waterproof.

Vulnerability: Must undergo curing (setting) onsite, exposed to unpredictable weather conditions.

Best for: Lateral strength (pressure resistance).

Concrete Block Foundation

Lifespan: 100 years.

Construction: Blocks are transported to your property and assembled with the help of mortar. Skilled workers are required.

Used for: 25 percent of home foundations.

Advantages: Precast indoors in a controlled environment, providing strength and uniformity. Easier and cheaper to repair, because damaged blocks can simply be replaced.

Vulnerability: Wear and tear on the mortar makes concrete block foundations more likely to leak.

Best for: Compression strength (weight bearing).