Originally Posted By: dfrend
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Just inspected a 10 year old home with a deck off the rear. The original deck was added onto about a year ago. They converted it to a screened porch and added a second story addition above it that opens off the master bedroom.
The deck is lag bolted and is about 2 feet off the ground. The outside edge is supported by 6 4x4's whose bottom ends extend into the concrete supports ug into the dirt. The ground water does make contact with the 4x4s at ground level. The upper addition is a fully enclosed sunroom with the roof extending off the main house roof.
My question here is probably obvious. Are the lag bolts and the 6 4x's enough support to hold a second story. Myguess is no, and I am planning on refering them to an engineer. Am I worng here?