Re: wood walls built like brick walls

Hi, I am building a single floor cabin by myself in 2022 and was thinking of building a 2x4 frame at 4-ft centers and utilize 2"x4'x8' Halo rigid insulation horizontally on both sides of the 2x4 frame. The wall framing should be light enough to lift by me in smaller sections. Followed by staggered stacking of 2x12x8' simple shiplap on both sides of the 2x4 frame. Essentially, creating a kind of SIP with an air gap for wiring utilizing 2x dimensional lumber as the sheathing. The wall would be 10.5" thick with an R-value of greater than 24 ( wood/insulation/air/insulation/wood)1.88+10+1.01+10+1.88)). The combination of the construction materials glued and screwed would make a very strong wall. Would it cost more? Most likely with today's lumber prices. However, if one is building the building by themself, no heavy materials to lift is worthwhile especially for people with bad backs like me. Plus the bonus of not having to deal with drywall is worth it.  Are there any civil engineers on this site that see an issue? Can I get away with using studs at 4 foot centers with such a construction? Or will I have to go to 2 foot centers?

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