The last details come together for the Cambridge project finale: granite posts set off the landscape and the revived vintage doorbell crowns the foyer. Designers Dee Elms and Andrew Terrat bring exquisite punches of color that make the sleek, white Scandinavian modern interior come alive from top to bottom. Homeowners Sally Peterson and John Stone are delighted, as the crew gives a final salute! In the second half of the hour, on ASK THIS OLD HOUSE, Richard heads to Cheyenne, Wyoming, to help a homeowner install a toilet. Then, Richard, along with Roger, Kevin and Tom, asks, "What Is It?" Afterward, Tom shares a viewer tip about driving eye screws. Roger and Kevin patch a lawn with grass seed.