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I am rebuilding a 2nd story balcony/deck. It is connected to
I am rebuilding a 2nd story balcony/deck. It is connected to the house. I am needing to know if my beam size is correct. The span from post to post is 14'2.5". The joists will span 8'5' from house to … read more
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I'm building a raised deck using 2"x8"x7' joists between the
I'm building a raised wood deck using 2"x8"x7' joists between the 2x8 ledger and double 2x10 rim joists. It will be assembled using joist hangers. The deck posts will be 6x6. All the lumber is SPF Dou… read more
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I'm planning on building s cabin with s flat roof and I want
Hi, I'm planning on building s cabin with s flat roof and I want to be able to use the roof as a deck. I'm wondering what sort of roof support is necessary to hold the weight of table chairs, 4 people… read more
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Planning to vault a ceiling in a 24' (clear span) x 28'
Planning to vault a ceiling in a 24' (clear span) x 28' total span room. Current roof structure is 2x6 rafters 16" oc. Hoping to install douglas fir ridge beam with support framing from concrete found… read more
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For a pergola, how far can a 6x12 fir beam span? it will
for a pergola, how far can a 6x12 Doug fir beam span? it will have 10 (includes 1 over each post) 3x12x13' joists hung 24" oc. … read more
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I'm replacing a 16.5' span that held up a enclosed porch
I'm replacing a 16.5' span that held up a enclosed porch extension 4x6. it is currently braced at 8 feet with a 4x4 post. I want to eliminate the middle post and have an open span of 16'. I need this … read more
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StructuralEng
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I need to check on an existing header size. How big an
I need to check on an existing header size. How big an opening can be supported by a double 2X6 header, supporting upper floor and roof, on exterior wall with 13' joist span on top. This is existing i… read more
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Residential Ceiling Beam: I just need the formula to
Residential Ceiling Beam: I just need the formula to calculate the maximum span so I can show the calculations to the building department. I plan to use a Doug Fir 6X8 to span an 11 foot span. That be… read more
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I am wanting build a rather large second story deck. I do
I am wanting build a rather large second story deck. I do not want mid post below. The span is almost 18'. What size joist would it take to span that far and what centerline would it be?… read more
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StructuralEng
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I am framing an open roof deck cabana. Was planning on
I am framing an open roof deck for a cabana. Was planning on using 6x6 rough southern doug fir(new mexico) rafters and 6x12 rough doug fir side supports that span 16 feet in length. The rafter span is… read more
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i need to span 20' and i have 3 4x12s, doug fir, beams, will
i need to span 20' and i have 3 4x12s, doug fir, beams, will they need to be supported in the middle or can they carry a metal roof on top of them, for my carport without support posts in their center… read more
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StructuralEng
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I am building a deck 10ft off the ground and have 4x4x1/4"
I am building a deck 10ft off the ground and have 4x4x1/4" steel post for support with 6x6 'H' beam @ 25# ***** foot on top. My problem: my posts were made 5 1/4" too long. I had planned on using 2x12… read more
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I have a small building (250 square foot). It has high ceilings.
I have a small building (250 square foot). It has high ceilings. I want to put a loft over part of it inside. I was thinking that if I thought of it as a 'deck' that happens to be inside, I would put … read more
walkereng
walkereng
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How far can I span a Doug fir 2x6 ceiling joist 16" on center
How far can I span a Doug fir 2x6 ceiling joist 16" on center with and open rafter system above. The internal ceiling will use 5/8" drywall. There should be no storage or load from above other than th… read more
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StructuralEng
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I want to build a 12 x 12 deck to support a 8x8 hot tube weighting
I want to build a 12' x 12 deck to support a 8x8 hot tube weighting 4730 lbs full plus the weight of 4 ppl at say 200 lbs. I want to build it free standing using 6x6 patio stones and dig any holes. wh… read more
StructuralEng
StructuralEng
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I plan to use 2x4 or 2x6 on edge to build a deck only 10
I plan to use 2x4 or 2x6 'on edge' to build a deck only 10 ft wide. The on-edge lumber will be supported by 4x12 on each end. Hence the lumber will act as the joist and the floor surface. Will this co… read more
walkereng
walkereng
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I have a deck with cantilevered joists that are deteriorated. I
I have a deck with cantilevered joists that are deteriorated. I am going to cut the joists off at the house. I will install a ledger on the side of the house. I need to install a 28 foot beam 7 feet o… read more
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StructuralEng
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I am planning a deck to be raised to a level of 7.5 feet.
I am planning a deck to be raised to a level of 7.5 feet. The joists for this deck will be 2x12 s on 16" centers and will span 18 feet. Each end of the joists will be seated upon 8" steel I-beams. The… read more
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