Re: what oz mat to use on stringers
It's best to run it over the top, make sure there is room for the deck to set back down on it (don't build it up too high). There are different sizes, but you can cut it to any size you want if you can't get what you need. You will find two weights of roving, 18oz. and 24oz., 18 is easier to use and 24 is stronger, but get what's availible it won't make a big difference. You won't know the brand when you buy it and it won't be an issue.