Im building a 10x16 greenhouse using a 2' knee wall sheathed, and a 4' wall placed on top with polycarbonate, and a 2x6 sandwiched between the two. Question regarding length..
For the 16' section, can I make the knee wall in two 8' sections, have the 2x6 plate overlap where the two butt up, then the top section the same in 8' sections, and a top plate overlapping the same as the 2x6 did?