DrewsBrews wrote:IMO using 2x6 would be adding alot of weight. Running the board down lengthwise is using the weaker direction for the grain. Id suspect 1x boards oriented laterally would be able to handle the cantilever forces since it would be perpendicular to the grain. That is typically how any cantilever structure is built. Should be less weight too.
I must admin I am somewhat going against my own suggestion on my build as I used 1x boards running down the sides uninterrupted, though the overhang is only 3/4" and the front and back perimeter boards are running full width to support the wall at the corners with the perpendicular grain.
Good point at installing 1x6 boards perpendicular. I thought perhaps a 2x6, though heavier, would be beefier/stronger and could resist the 2 3/4” cantilever. The 2x6 or 1x6 is still nearly centered over the frame where it would bolt up so it’s not like the entire 1x or 2x is hanging out in mid air. So you would recommend 1x6’s clad with plywood. What thickness and type would you use top and bottom?