![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3MjTbg-rqnpiinoRzHTlo_lGN34HOA1Wjje3-Q_heB-rA3pXH0Isxq454kN24LKK0qYwe8qJrlce64uDweO55Z2TpOpCiEYHktf_bLcazWmCr_i-R4s4sk9Czxex-mlGlB-eliURUL8KT/s320/Box+beam+and+supports.jpg)
Most rectangular buildings only have four walls, but to keep things interesting we added a fifth -- running down the center, it supports much of the roof, and will allow us to have clearstory windows in the middle of the house.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0v9VJYiG38beFVKjyoBSWqJ4Nv4EzWsjgGKeOOU1_DEiClj2QjoJ_5KzWEH9kHiDwgGcSflJsPLa9M5gwbeN5ftULKb-vsDZgnRD6QCV6XlZyXSrIq32KG7T21h-F6EL0-7XwV6QzBJQe/s320/Box+beam+and+supports2.jpg)
The center wall is essentially a 24" x 6" plywood box beam, supported by 4 6x6 posts.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPbIx9WF8_2oarbi27ZeWFiDis6_n96qb0xcd1Y_IKAXXrzwqqetttTWMfX9RBu02BCjrrkajjjOtCxlGq01MTjAah5LiuyLbEKvqtmIGl4DXEM0LCGiFbZSDLF15BU2H5Y_jXnjwIlZMR/s320/Keith+stapling+in+insulation.jpg)
The top of the wall is exposed on one side, so we've insulated it.
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Russ and Bart fit plywood to the box beam.
Russ inspects the post.