Wood shingle siding installation is a breeze, but keeping courses straight is tough. If you want to shingle the side of your house, here's a good tip on how to keep each course perfectly straight. First, snap a leveled chalk line and then attach a length of strapping as your guide. Lay a course of shingles on the strapping, making sure the joints are staggered. Leave about five inches exposed to the weather and repeat this process from the bottom of your wall to the top.
For more on siding, consider:
Guide to Exterior Siding
How To: Stain Wood Shingle Siding
Siding Roundup: 8 Options to Beautify Your Home