I've been lurking for awhile. Very thankful for finding this site, and to all that contribute. The hearth pad specs for my stove is 39"x52" . Yesterday I seasoned my new stove outside to remove the smell, my daughter has asthma and did not want to fire it inside. I'm getting ready to build the hearth pad. But I noticed the side heat was very minimal to say they least. I fired the stove for about 10 hours. Now I realize it was out side, but I even put some news paper on each side of the stove to see if it would ignite. Nothing happened . So my question, Durorock and Hardibacker come in 36"x60" sheets. They are 1/2 inch short on each side. The floor that the pad will be on is hardwood oak. I'm not one to cut corners. And the ember protection in the front of the stove I get. But how important is the 1/2" on each side? Any input would be appreciated.