Norm visits Essex's last shipyard. Kevin and Tom build shiplap barn board walls and a mantel. Landscape architect Kellie Connelly and Roger show off the finished yard, and project architect Sally DeGan gives a tour of a home with accessible retrofits. Designer Keith Musinski lays out the reclaimed tile hearth. In the second half of the hour, on ASK THIS OLD HOUSE, Tom and Kevin demonstrate how to use all types of ladders safely. Then Richard replaces a three-handle shower valve with a single-handle anti-scald valve.