A retaining wall turns a hillside into level rooms. Here is how walls work, why drainage matters and when to bring in an engineer.

What a retaining wall really does

A retaining wall holds back soil and water. The weight of wet soil is large, so a wall needs a firm base, a proper batter and a way for water to escape behind it.

Drainage makes the difference

Most failed walls failed because water built up behind them. A good wall has clean gravel behind it, a drain pipe at the bottom and an outlet to carry water away.

Materials

Segmental concrete block is strong and versatile, natural stone is beautiful and boulders suit rustic landscapes. Each can form terraces, curves and seat walls and tie into steps and patios.

When to call an engineer

Taller walls, walls that support driveways or buildings and walls on weak soil often need an engineer’s design. We tell you early and coordinate the drawings.