Wood Sidings by Gordon F. Tully A design seldom demands a particular kind of cladding. Usually the designer or builder must make hard choices from among a few options. Here are the most important questions to answer when choosing an exterior cladding: 1. Is it available? 2. What is the cost? 3. How long will it last? 4. Is it attractive in itself? 5. Does it support the overall design? 6. How often will it have to be refinished? 7. Is the available labor able to install it properly? 8. Does its use harm the environment? This discussion will focus on bevelled siding and shingles, a variety of vertical boards (either tongue and groove or battened), and plywood. I have no experience with shakes, but most