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Deck over patio

From: Brejnad@Diebold.com
Category: Decks
Remote Name: 204.151.249.23
Date: 04 Sep 2002
Time: 08:45 AM

Comments

Hello, I have a deck situation I am hoping you can help me out with. Basic Deck Concept: I am going to build a deck off the back of my house. The deck would extend 12’ from the house and be 30’ in length (parallel to the house) (your basic rectangle). I plan on securing the deck to the house (not freestanding). This is a second story deck and there is a concrete patio below. I want to avoid putting any post onto the concrete patio. This means that I will only have 2 posts on the outside corners of the deck that are 12’ away from the house and 30’ apart. I plan on using either 5/4 decking material or a tongue and groove product (like cedar). I do not plan on putting anything heavy on the deck (like a hot tub); the only weight on the deck will be people, patio furniture, bar-b-q, and snow (in Ohio, not too bad). The way I see it, I have 2 options for the support structure. Option #1: Run LVLs between the two posts and the house and use wood I-Beams (16” on center?) to span the 30’. This approach results in the deck boards running 90 deg from the house. Option #2: Run an LVL or wood I-Beam or steel I-Beam between the posts (30’ span) and run 2’x10’ treated lumber between the beam and the house. This approach results in the deck boards running parallel to the house. Questions: - What size posts do I use (4”x4”, 6”x6”, 8”x8”)? - Can I use LVLs on exterior projects? - Can I use wood I-Beams on exterior projects? - What size LVLs do I need for Option #1? - What size wood I-Beam do I need for Option #1? - What size LVLs do I need for Option #2? - What size wood I-Beam do I need for Option #2? - What size steel I-Beam do I need for Option #2? - Can I use 2”x8” instead of 2”x10” for Option #2? - Is there a better approach than the 2 listed above to construct this deck? Thanks for you help, Don

 

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