Adding Under on a Hillside, Images 11-20

The plans called for extensive digging under the house. To avoid undermining the existing fireplace, which was to be left in place, the crew installed temporary plywood shoring pinned to the earth with heavy rebar.

Detail of the under-house shoring

This created a safe though narrow work space for forming and pouring a new retaining wall.

The new reinforced wall would serve as the back wall of the downstairs living space and permanently stabilize the soil under the house.

The retaining wall foundation required a serious amount of rebar, including L-shaped pieces coming up from a wide footing.

The rebar was tied in a 12-inch grid to the top of the wall.

To speed tying and ease wrist strain, the crew used inexpensive manual twist tools that wind the ends of the wire when their handle is pulled.

The author rented a heavy-duty electric bender to speed the work.

Concrete is pumped into one of the new basement walls.

The author uses a simple forming system from Meadow Burke that includes durable reusable hardware for attaching snap-ties, walers, and upright braces.

Join the Discussion

Please read our Content Guidelines before posting

Close X