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Building Basement Stairs
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" Originally, we had our stairs that went from the kitchen area down to the basement but in the wrong direction. So now, we reconfigured it and as I understand it, you got a little bit of a problem 'cause----"
" That would---- we come down here and hit this concrete wall, which doesn't whack so we're going to put in a winder----"
" Yeah."
" A platform and a winder to step-off of."
" So the last few steps of the winder around in this direction?"
" Right."
" Now, I think the first thing that we should talk about is how you determine the sizes here that the height of the riser of the staircase and it's relationship to the tread."
" Right. Well, the basic rule is that the riser plus your tread runs to be somewhere between 17 and 18 inches. You also wanna be sure that the rise is never more than 8 inches and given also is that you will always have one more riser than you will a tread."
" Okay, a little bit important rules."
" Yeah, that----"
" And of course, those dimensions so with ratios have to do with the safety and comfort of the staircase. "
" Right."
" Yeah."
" Definitely."
" So, let's talk about rise first. How do you determine that?"
" Okay, the first thing we really need to know is what out total riser is and that is the measurement from floor to ceiling, always being either rough to rough."
" You mean from floor to the floor above?"
" To the floor above, that's right."
" And not to the ceiling."
" And then, we have 98 inches."
" And you always wanna measure as Riley was saying, either from the rough to the rough----"
" Yes."
" or from a finish floor to a finish floor."
" That's right."
" but not from one to the other----"
" Right."
" 'cause that'll will throw you off."
" Right, that's----"
" That sounds like a good round number, 98?"
" 98, right. So we know that we want our rise to be around 7 inches, so we'll take a 98 divide it by 7 to see how many we have, and it comes out to exactly 14, so that's part of the procedure."
" Now, how about the dimension from here---- from the beginning of the staircase down to the end?"
" Okay, from there to the concrete is 130 and a half inches."
" And now, from that we will take 38 inches, which is what we want for our platform [unk]."
" For the platform, you could have made it as small as 36."
" I could have made it 36, right."
" If you can do 38 that's better."
" Right."
" We'll get down in there?"
" Yes, so we have 130 and a half minus the 38 inches for the platform."
" For the platform."
" 92 and a half inches."
" Right."
" Now, we know that our treads would like to be around 10 inches, so we'll divide that number by 10 telling us that we need 9 treads."
" Yeah."
" So we'll take the 9 divide it into our run 92 and a half and we come up with 10 and a quarter inches for our treads. There'll be 9 of them."
" Sure."
" Knowing that we know we have 10 risers."
" Okay. So the next question is how do you cut the sides?"
" Okay, now for that we'll use a framing square and what we have here is---- some kiln-dried spruce 2 X 12----"
" Right."
" and we'll just start a couple of inches in from the end."
" You always order your length an extra couple of feet, so that you've room to play."
" Yeah, on your stair treads, yeah----"
" To make space, yeah."
" Definitely."
" So we'll hole the framing square one side, which is the riser with 7 inches and this side over here is the tread it's 10 and a quarter."
" And then just keep on going?"
" And then we'll just run that down, the whole length of the slot, made the whole thing right on."
" Where do you make your first cut?"
" Right here, Bob. We're just gonna extend this the first riser line, right through."
" And then, we come in with some 234-inch strapping, which gets hung right there and that will become our first riser."
" That's right."
" But right now, we gotta cut all the excess, right?"
" Yup."
" Alright. So that's how you need 2 nails in each one and that will hold it in place."
" It's gonna hold it Bob."
" Good, alright. Well, we're almost there. Now, what I wanna review is how we built the winder as it's called down here?"
" Okay, well this is a square platform that we started----"
" From the bottom, yeah."
" from the bottom here, which is 90-degree angle. We know we wanna divide into 3 equal parts, so basically it's 30 degree, 30 degree, and 30 degree and so on."
" And so, then you built 3 additional boxes."
" One on top of it---- we just stacked them and one top of each other."
" And that's all there is to it."
" That's it."
" Great."
" Nice job."