Able to add great structural support to a wall, plywood is valued not only for this feature but also for its ease of installation with only basic carpentry skills and tools. Its primary drawbacks are that it can “check” (show small surface cracks) and, like all wood, is flammable.
The most common plywood species are Douglas fir, Western red cedar, redwood, and Southern pine, making for a broad range of textures and patterns. Sheets come 4 feet wide and 8 to 10 feet long. Lap boards are 6 to 12 inches wide and 16 feet long. Thicknesses of both are 3/8 to 5/8 inch.
With the proper maintenance, plywood siding can last from 30 years to the life of your home. Before installing, seal all edges with water repellent, stain sealer, or exterior house paint primer. Then re-stain or re-paint your house every five years.
The major enemies of plywood siding are termites and moisture. You can avoid termite damage by ensuring that the siding does not come into contact with the soil, and water rot by making sure the siding is properly finished and maintained.
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