What do you think of this idea for a load-bearing wall? Will it work?
katie66
5 years ago
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rantontoo
5 years agoRelated Discussions
ducting range hood inside a non-load bearing stud wall
Comments (18)"Have you thought of changing the wall studs to 2x6" rather than 2x4"?" I don't wish to destroy the wall on the far side. I have a large map wallpapered to the other side. I could build out with a false wall for some additional distance, but I don't see that as necessary since I can do at least 3-1/2"x14" (almost equivalent to a 8" round duct). Plus, I found a standard "Straight Register Boot" to transition to 8" diameter. I believe 3-1/2x14" equates to about .05 friction loss for five feet). I just don't know what 2200-2500 FPM will equate to in sound level at the hood. I foresee cutting a 4x15 opening (or bigger), at the back of the hood. I am re-reading rjpjnk's post and I remind you I only have five straight feet till it feeds straight into the fan venturi. I found this is an engineering handbook: Duct velocity should be between 1500 and 4000 FPM  Hood velocities (not less than 50 FPM over face area between hood and cooking surface)  Wall Type - 80 CFM/ft2  Island Type - 125 CFM/ft2  Extend hood beyond cook surface 0.4 x distance between hood and cooking surface Filters  Select ï¬lter velocity between 100 - 400 FPM  Determine number of ï¬lters required from a manufacturerÂs data (usually 2 CFM exhaust for each sq. in. of ï¬lter area maximum)  Install filters at 45 - 60°to horizontal, never horizontal Using this as a guide I think an average 400 CFM for general-purpose venting @ 1500 FPM means that I am well covered with a variable speed 1000 CFM external fan and 8" duct area. I'm guessing that at 1500 FPM it will be pretty quiet. The old Vent-a-Hood units are supposed to deliver 300 CFM each and I usually only use one. They are super noisy at near my ear level and 18 inches away. The air passes through a 3-1/2" x 4-1/2" rectangular opening! That's small and seems to equate to almost 3000 FPM! I guess it's no wonder they're so noisy... Am I missing anything? Bad calculations or asumptions?...See MoreQuestion: Load bearing walls and poured-wall basement
Comments (12)building off of what renovator said, if you have load bearing walls on the first floor, you need to align structure below them in the basement. This can be beams or walls. Frame walls will be your cheapest option in most cases. However if you do not want a wall there, then price is not always the driving factor. However if you are a single story plus a basement, you shouldn't have too many first floor interior bearing walls. If you use steel or LVL beams, they must be sized to carry the first floor load as well as the loads placed on the first floor (2nd floor and possibly roof loads). As you can guess, this can make wood beams, even built up, quite deep. Steel might be your best bet here if you have longer spans between columns in your basement to keep head room heights at ideal levels. I tend to disagree with the claim in wood costing more then steel. Steel will cost more then wood in most cases. The post can be hidden inside walls (why would you do this? save the money and make the wall bearing! unless of course you have a very high point load) or they can be boxed out and made decorative. I joists should actually be cheaper then a floor truss, but typically cost a little more then solid 2x8-12 framing. However IMO, I joists are far superior. They can be had in very long spans so they can lay a continuous 30'+ joist across your load bearing beams/walls and allow for straighter and faster construction. Also, depending on the depth of them and the spacing, they can easily clear span 20'+. Plus they are a "greener" product. Trusses will cost more, but the benefit you have there is the web openings to allow easy smaller duct runs and electrical access....See MoreDo I need to remove load bearing wall,/bump back the cabinets/pantry?
Comments (13)Ok. Let me try this again. I have color-coded the drawing to help explain what I am asking. What I am trying to accomplish is to have the benefit of extra space without totally removing the load-bearing wall. With the island I would like to put in, I won't have a wide enough walkway if I line the load-bearing wall with cabinets. However, I was thinking that I might be able to keep the support from the load-bearing wall, place a pantry, closets or cabinets around the supports for that wall, and create a non-load bearing wall behind it. Sort of bumping the wall back without losing the structural integrity it provides and without the cost of removing it, especially because I would need to put up another wall between the dining room and kitchen, even if it is not as long. Otherwise, there is nowhere to put the fridge. This means I would lose some space in the dining room, but we don't use it more than 1-2/times per year. I am attaching some photos of my very ugly current kitchen to give you a better idea of the current layout. At this point, I am wondering if this idea has any merit before I move into other floor plans for the space. I really, really want the big island but am not sure if it is feasible. 1. View from dining room into kitchen: view from front hallway near stairway 3.kitchen from family room 4. view of load-bearing wall from kitchen toward the dining room 5. another view of load-bearing wall 6. from garage entrance into kitchen 8.from bay window area toward load-bearing wall If there are other views you would like to see, please let me know....See MoreIs my wall load bearing? hesitant on removing the wall.
Comments (5)Your picture seems to show 2x4s, a doubled sill plate, a gap, then a header. If that header spans from an exterior wall to an exterior wall, the 2x4s and doubled sill plate aren't doing any work other than holding up drywall....See Morezmith
5 years agolast modified: 5 years agomtnmom9
5 years agokatie66
5 years agomtnmom9
5 years agoJ G
5 years ago
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