Kevin O'Connor reviews the progress of the Westerly house.  Tom Silva and Jeff Sweenor work on the main staircase at Jeff's shop and then they bring it to the house to install.  At the Idea House, Kevin looks at new clapboard siding technology.  Richard Trethewey tours a factory to see how a furnace is built and then watches one being installed at the project house.

The new propane tank gets buried in the backyard.  Norm advises an apprentice in composite decking.  Jeff and Tom add final touches to the coffered ceiling.  A shelving system goes into the new office, and applies a stone veneer to the new chimney.