Retaining walls

Retaining wall drainage needs crushed stone, filter fabric, a perforated pipe, and clear outlets. Learn how drainage prevents water pressure.

Learn when a corten steel retaining wall works, what affects cost, how panels are installed, and why drainage, soil contact, and rust runoff matter.

See the cost of retaining wall in 2026 by linear foot, square foot, material and labor. Compare block, concrete, timber, stone and boulder wall prices.