Building "off-grid" - I-Joist Kneewalls - (click pictures for larger view) |
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Early June 2005: After installing the garage door headers and the main beam, you can see that the top surface height was a few inches above the block wall. I intend to rest the floor system flat rather than notching the joists, which would weaken them. That understood, I needed to raise the level of the end walls to match the header/main beam height. I built these little kneewalls to raise that level, putting double 2 x 6 supports on 19" centers - the same spacing as the floor joists . The 24' span from the block wall to the center of the building is too long for a conventional floor joist setup, so I needed to choose between manufactured trussed and prefabricated I-joists. I chose the I-joists for their strength and rigidity, plus the cost is significantly lower. More on the floor system at a later date. |
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View from SW Closer view |
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View from inside facing SE |
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