Hey Paul, Love the videos. So informative. What do you guys use as your baseline for leaving expansion gaps in a gym floor during install? How many rows do you space between expansion gaps and what method do you use?
Great question, we serve the Rocky Mountain west, MT, WY, Idaho, Eastern Washington. Our primary challenge is to little humidity. We usually install Robbins or Action Maple with an expansion ridge or sometimes it’s call “crush” bead. It holds each board apart .013 of an inch. This allows for some expansion, without board cupping. In areas of the country with wide swings in humidity expansion rows are necessary. In some cases as often as every 18 inches. It just depends upon where you are installing the gym floor. This is a great question, but it doesn’t have one definitive answer. It depends upon location AND upon the facility.
