here's a drawing of a two-story home framing you can see the lower walls in the upper walls the wall we're going to focus on today is going to be this particular wall here and a problem that someone emailed me about and I thought it would make a good good video so what do you do if you have a bearing wall whether it's a two-story wall or would be a wall that would be sitting on top of a wood frame floor not a concrete slab and there is no support under the wall this right here would require a doubler a double joist yeah and it would require one actually even if it was a non bearing wall so all framing members that run all walls that run parallel to the joists will in this direction here will require a double joists underneath it so I'm going to remove the plywood here to give you a better idea the floor sheathing you can see there is no support under the wall except for the plywood itself that's it if you have a situation like this where you do not have a doubler and you're starting to have problems and you're not going to have this all the time I've seen a plenty of times where you have a wood frame floor and the wall is is something like this where it's in the center of the span in between the joists and there's never a problem but every once in a while you are going to have a problem let's put the sheathing back in there and go underneath take a look at what we're looking at I remove the blocks this is something you would need to do remove the block on each side because in order to put the new double joists in you are going to need to be able to slide the joists in to this side because remember this is the outside is going to be finished with stucco or siding you're not going to be able to get to get it through the outside now if you do have a problem where you can't slide it through then you could always remove a section of the exterior of the home and/or the building and slide the joists in that way if that was if you needed to but if you can try to get the joists in and slide it in to the other side where you don't have anything in the way but you could you could have plumbing pipes in the way electrical heating ducts and this could be a nightmare trust me now here's the doubler went ahead and put it in underneath the wall and I'm going to try and make another video to go into a little more detail on how to actually install something like this it's not it's not like I said always going to be easy but you never know you could look you could luck out again this is a side view you will need to put the blocks in after you install the doubler recut the block and block this area here and the same on the other side so this area will need to be blocked now here's the scenario from the individual who emailed me they actually have a pipe plumbing pipe running in the in between the joists and this is going to make it a little more difficult to actually put your trust joist in but I'm going to provide you with a couple of options in our first example you will simply cut the pipe so that you can install the floor joists doubler and cutting the pipe in the right spot is going to be something that's that you're going to have to try and pre plan it's a lot easier to cut the pipe and then realize I cut it in the wrong spot and then cut it again but don't cut the pipe if you haven't figured out how you're going to put all this stuff back together this is not going to be easy now here's the doubler installed to make sure that you drill the holes or cut the holes out for the pipe before you put the double ram because you might not be able to cut it out might be difficult to even get a something in there to cut it out so that would be a bonus tip there make sure everything is cut and we'll line up that would be I guess your second bonus tip now getting the pipe back in here and using the couplings this could be a nightmare so you might actually need to remove a section of the pipe back here further in order to slide a pipe into here and you might need three or four couplings you might need and if it's a plastic abs or PVC you can get the couplings and you know if you have to use one in every Bay then you'll have to use one in every every Bay and I don't think there's a problem with that as far as the building code is but you would need to check that out yourself remember I'm just giving you some advice here on things that I've seen either seen done in the past or done myself as a repair here is method number two this would not require installing another doubler you have too many pipes in the way in the way or it's going to be too difficult to do this right here might be the path that you would do and I would imagine this would be what most people would do but you again you would need to check with the product manufacturer the people who make the engineered trust choices to make sure you can actually do something like this this is real common with conventional lumber regular two by tens two by twelve something like that and a lot of times they don't need any hangers they just nail them on the side but you wouldn't really be able to do that with these because they don't have enough wood to nail into most of these of the webs here the plywood or the oriented strand board that's used is less than a half inch thick it's not going to give you much support so it they do require a piece of plywood or I'm sure engineered lumber again you would need to check with them some actually require conventional lumber a regular 2 by 6 a regular 2 by 8 and they do require them to be tight they need to fit the web stiffeners here or the plywood spacers whatever they would be I don't know why they wouldn't be a spacer let's go with web stiffener okay I like that one these pieces would actually need to be they requiring to be tight fitting so if you have a gap between the bottom cord top cord and the bottom cord and it's nine inches they want it to be nine inches it didn't require an eighth of an inch gap for expansion or anything so I don't know if that could be a problem later doesn't make any sense to me I would rather see like to see a gap in there but who knows I'm not the product manufacturer the reason for them not maybe one of the reasons they don't want a gap in here is because they're actually going to use the tight plywood that you fit you fit in here as something to stiffen the top and bottom cords which would make sense I hope that makes sense to you if not leave a question in the comment area and I will try to elaborate on it again when they want it on both sides I should mention they want the and you can always go in if your if the manufacturer of your choice trust joist is warehouser then go to their website type in trust joist installation instructions installation manual and get all the informations there this is actually where I went I went to one of these lumber companies and read their in their information and their information product information might not be the same as someone else's so make sure that that is crystal clear in this video I don't want you doing something and remember these are all any suggestions I can't state that enough a structural engineer might require something different I'm just throwing this out there if you use it you will be using it at your own risk so keep that in mind last thing I want to do is have somebody tell me I told them to do something and and didn't fly so this again is something that a lumber manufacturer one of the companies recommended but if you're dealing with a large load you're doing a remodel for example and you need to install a you need to install a doubler underneath in the existing floor and the structural engineer does not provide you with a method and you watch this video and you think hey this'll do you're making a mistake contact a structural engineer for verification on anything you do to a building if you are remodeling it if you're making modifications if you're making a repair you can simply put it back together if the trust joists are damaged you can put it back together to its original specifications as long as other parts of the building have not been modified so I hope that makes sense I hope this makes sense these are a few methods or a few fixes that I have done in the past and might be helpful so that's why I made the video and again this was a question a response to a question that someone emailed me and I hope this helps you out