What is the formula to build stais in a home i cant figure it out?
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The URL below should be all you need.
Hope that helps you. {:~D
http://www.shalla.net/?gclid=cpxjxkqup4w...
http://fl.essortment.com/buildingplans_r...
http://www.make-my-own-house.com/stair-c...
I searched a while ago for a website for stairbuilding and found this one was the best. http://www.extremehowto.com/xh/article.a...
Good luck
Just plug in your rise/run and there you go!
http://www.inspectusa.com/calc/stairs/ri...
Stairs can be very tricky to figure out if you don't do them for a living. I've been in construction for almost 25 years and I have to really think about how to lay out a set of steps because I rearely do them.
There are several things to consider when laying out your steps:
1. Do you have any potential head-room issues with the steps?
2. What heigth of riser do you want?
3. What heigth of riser can you have?
4. How deep of tread do you want?
5. How deep of tread can you have?
6 Do you want to have a "kick-back" on your steps?
Any head-room issues and the total height your steps have to climb will answer these questions.
#6 is an option that can allow you to have a deeper tread in the same space of a shallower tread. I wish I could draw a picture to show better what a "kick-back" is but can't do. When you give a step a kick-back, you angle the riser back from the nosing to allow for a deeper tread. For example: steps with a 2" kick-back will allow you to have a 2" deeper tread without loosing much more space. Also a set of steps with kick-back have a more richer look than a plain straight step.
I hope that I have not confused you more than helped you. Keep my information in mind and take a look at the suggested sites - they might give a better explaination of the kick-back as I have. Don't feel bad about not being able to figure the steps out, they can be a royal pain sometimes even for us professionals!!
You are talking about an algebra formula for Slope of a line, which could be the slope of a roof, or in your case the slope of your staircase.
You need to know the rise(how high the highest point is) and the run ( the full length)
This will give you your slope - if it is too sharp then you need to change one or the other.
Remember, if I start at zero and go to say 12 inches. Take a pencil and on one end put it at zero and the other end at the 12 inch mark. Look at that pencil - this is what the slope will look like. You can substitute inches for feet and do the same with your staircase to see what the angle will look like. It is better to be sure the length of your pencil is the same as the stairs.
if the legth is 12 feet and you are using inches instead of feet in your test, the pencil has to be about 12 inches to get a true illustration of the slope angle.
Slope = Rise / Run
m = y / x // these are the variables used.
find two points:
m = (y1 - y2) / (x1 - x2) //any two points.
m = slope
When finding your points remember if you measure over 3 ft and it rises 1 foot it should be represented as
1/3 // for every three units x increases the rise ( y) increases by one
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