load bearing capacity of cantilevered 2X8's
Does anyone know what the load bearing capacity (per sq/ft) for spruce 2X8's that cantilever 5 feet out and are nailed to the joists back 11 feet? (spaced 16 o/c). To clarify, these are 16 foot 2X8s total length but only 5 feet of which hang out in front of the house as supports for a wrap-around second story deck. I know it depends on other factors like how many nails were used to sister to the joists, but there must be a formula for an approximate range of bearing capacity under these conditions. Currently they are surfaced with yellow cedar and I would like to replace the decking with something heavier (like maybe Ipe). The framing is in good condition.