What is the average life expectancy of exterior wood stairs or steps?
Monday, June 8, 2020
You can expect exterior wood stairs and steps to last 15 to 35 years, with an average of 25 years. Wood rot is the enemy, so longer life is achieved by keeping a preservative coating on the wood and avoiding "water traps." A water trap is any surface that allows water to puddle on it, or seep into it, instead of draining away naturally by gravity.
Wood rot is inevitable with time on exposed exterior wood, including pressure treated wood, but it can be postponed with careful maintenance. To learn more, go to our blog post Where are the most common places to find wood rot on a house?
Here’s a bar graph comparing exterior wood stairs or steps life expectancy to other types of home stairs and steps.
Go to our blog post What is the average lifespan of the parts of a house? for rating of other house components. To understand the basis, potential use, and limitations of lifespan ratings, see How accurate are the average life expectancy ratings of home components? Are they actually useful?
Here’s links to a collection of our other blog posts about STAIRS:
NOTE: These life expectancies are based on data provided by InterNACHI, NAHB, FannieMae, and our own professional experience. Because of the numerous variables that can affect a lifespan, they should be used as rough guidelines only, and not relied upon as a warranty or guarantee of future performance.
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