Concrete – Messed up shed concrete pier foundation – wrong spacing. Does the plan to fix this look realistic

concretefoundationshed

Hmm. So here's the situation. I've ordered a 10×16 shed and decided to build concrete piers foundation. Iv'e used shed manufacturer instructions but messed up the piers positioning.
As you can see I've positioned piers 2 feet away from the shed edge as opposed to 1 ft… (facepalm)

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So in order to fix this I plan to use sistered 2x8s instead of 6×6 as suggested by the construction plan. Shed floor has five 4×4 runners which I think will help to distribute the weight (see schematic here) and offset the fact that piers are further from the edge.

Do u guys think this will work?

Best Answer

Nvm. talked to couple of construction guys that told me Ill be fine -> as long as I use sistered and glued together 2x8s. So I'll go with that.