Ask This Old House

Ladder Safety; What Is It? Replacing an Old Retaining Wall (3x11)

Air date: Dec 13, 2004

Kevin heads outside the barn to learn about ladder safety from expert John Drengenberg. Up at the loft, Kevin, Tom, Richard and Roger ask, "What Is It?" Then, Roger rebuilds a crumbling retaining wall with homeowner Colin White of Wakefield, Massachusetts using interlocking concrete blocks.