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timtex

Shade structure for patio

timtex
11 years ago

I want to build a free-standing shade cover for my patio. Very simple design, just 4x4s attached to the patio with post stand-off brackets. Then, four joists attached with hanger brackets, and widely spaced lattice on the top to support shade fabric during the summer (removed during winter). I want to use Western cedar. My question concerns the 4 joists at the top. Can I get away with 2x4s, or do they need to be 2x6s? The footprint of the structure is 4 by 8 feet. I checked the American Wood Council site which has a span calculator, but if I change the deflection unit it changes the joist size. Also, should I be concerned about the structure twisting? This is kind of a "look don't touch" thing, no kids or dogs will ever be around it. Thanks.

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