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Building an 12×20 addition. The floor joists need to span all 12 feet. I would like to create the floor as thin as possible to allow for more space in the garage below. Has anyone seen information on “structural floor panels”? I am thinking along the lines of metal 2×6 joists with 3/4 plywood glued and screwed both sides to create such a panel.
Thank you
JR Hoell
Mechanical Engineer
“it is easier to design a Segway HT, than the addition to our house…”
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j, I've seen some swedish floor panel that look like a big cutting board--2x4's all glued together on edge. Similar to parallam technology. Material-intensive but may work for you.
I bet Parallam has the engineering info for minor axis loading.
*The concept is valid. You might want to check with the SIP people. they make pannels for floor use and I think that 12ft is within there limits for a single plannel.