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When hanging wallboard on an angle, try this technique. Measure the length from the edge of the wall to the end of the angle. Next, measure the height - think of it as outlining a triangle. Mark the measurements on your wallboard and snap a chalkline.

Bob joins General Contractor Wes Lohr as they frame the back wall of the affordable home in Mashpee, Massachusetts. Lohr walks Bob through the framing process as the deck is marked for stud placement, doors, and windows. Lohr explains the labor and time savings that materials and tools like a nail gun bring to the framing job. Lohr's brother Scott lays out and nails the entire wall from the header to the jack stud, the king stud, and the top plate that will receive the second-floor deck. This traditional stick-built wall will be squared and snapped with a line for the plywood before the sheathing goes on.

Bob meets with Peter Merianos and the crew from Coastal Heating and Air Conditioning who are fabricating the AC ductwork on site. With the Kenmore air handler already installed in the attic, the crew begins assembling the ductwork using five-foot lengths of pre-crimped sheet-metal ducting as the basic material. The sections snap together and are secured with sheet-metal screws and foil tape. To add a new line off the main trunk, the crew cuts a hole into the the trunk with a special tool. A starting collar from which the new line will extend is then inserted into the hole. The ductwork is insulated using vinyl wrap, which is a one and a half-inch vinyl-coated fiberglass blanket.

Bob meets Larry, the tile contractor, who is installing floor tiles in the bathroom. Larry starts out by putting down an under-layment, letting it dry then snapping chalk reference lines to insure the grout line remain parallel to the vanity and shower. Larry gives a tip on where to start tiling a bathroom to lessen the likelihood of tile failure and water damage. Larry�s assistant, Leo, then cuts the tile using a diamond tipped water-cooled, tile saw. Bob comes back to Larry who then nips the tile to the specifications and lays it.

Using a chalk line is a quick way to give yourself a straight line as a building guide. Here's how: Find the endpoints of your line and drive a nail at each point. Stretch the chalk-coated string tightly between the nails, pull straight up from the middle and let the string snap. On rough framing and cement you can use red chalk, but be sure you only use blue or white chalk on finish work, since they won't bleed through paint.

Carpet tiles, also known as carpet squares or modular carpeting, are easily installed side-by-side to create a smooth, carpeted floor that looks just like wall-to-wall carpeting.