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converging steps 45 degree angle
i know the angle is 22.5 and i have a construction master iv calc. how do i calculate the three treads. i know the rise is 6.5 inch and my tread is 11 inch and i need a total of 4 risers and three treads. how to i compute the center tread where they are converging. thanks
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Originally Posted by outerbanker1
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i know the angle is 22.5 and i have a construction master iv calc. how do i calculate the three treads. i know the rise is 6.5 inch and my tread is 11 inch and i need a total of 4 risers and three treads. how to i compute the center tread where they are converging. thanks
Do I smell a troll here? Trying to get another "equilateral triangle" thread started?
George
Quote:
Originally Posted by outerbanker1
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i know the angle is 22.5 and i have a construction master iv calc. how do i calculate the three treads. i know the rise is 6.5 inch and my tread is 11 inch and i need a total of 4 risers and three treads. how to i compute the center tread where they are converging. thanks
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Please explain what you are mitering framing the stairway? Your sizes for the parts are typical but can be altered for each application. Most of us plan a stairway in terms of rise and run. The size of the risers are determined by how much space there is between the first level and the upper level. The run is usually determined by how many treads there are but in some cases the stairway can be made steep when space is limited. In this case the treads can be made smaller.
Quote:
Originally Posted by outerbanker1
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i know the angle is 22.5 and i have a construction master iv calc. how do i calculate the three treads. i know the rise is 6.5 inch and my tread is 11 inch and i need a total of 4 risers and three treads. how to i compute the center tread where they are converging. thanks
Step #2, use a spamulator master iv calc.
Step #3, If you are still stuck, google Ted's Woodworking plans.
Kevin.
“There are no secrets in woodworking, and everything should be shared.” Sam Maloof
Junior Member
ok guys, this is not spam and yes i think ya'll are cute.
i have a deck that where the steps are going is a 45 degree angle. my total rise is from ground to finished height is 26 inches. i am making my finish threads @ 12 inches. so i am cutting my risers, 6.5 rise and 11 inch thread for a total of 3 treads. these will fit the two sides sq. my question is how do i compute the king tread that connects the two that is on a 22.5 degree angle from the sq. ones. strings and straight edge will work, just thought i could get and answer from here. (a sq + b sq = c sq) using 11 inch did not work. thanks, this was my first question to this forum, hope i made your day.
i have a deck that where the steps are going is a 45 degree angle. my total rise is from ground to finished height is 26 inches. i am making my finish threads @ 12 inches. so i am cutting my risers, 6.5 rise and 11 inch thread for a total of 3 treads. these will fit the two sides sq. my question is how do i compute the king tread that connects the two that is on a 22.5 degree angle from the sq. ones. strings and straight edge will work, just thought i could get and answer from here. (a sq + b sq = c sq) using 11 inch did not work. thanks, this was my first question to this forum, hope i made your day.
Quote:
Originally Posted by outerbanker1
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ok guys, this is not spam and yes i think ya'll are cute.
Quote:
Originally Posted by outerbankerq
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i know the angle is 22.5 and i have a construction master iv calc. how do i calculate the three treads. i know the rise is 6.5 inch and my tread is 11 inch and i need a total of 4 risers and three treads. how to i compute the center tread where they are converging. thanks
.
Photos  4 Pages: http://www.woodworkingtalk.com/galle...00&ppuser=1269
The Following User Says Thank You to cabinetman For This Useful Post:  mackem (03162012) 
Junior Member
i do not know how that got in there. but i do have this problem, and thought someone could answer. thanks, outerbanker
I see a lot of guys out there with their electronic gadgets that they hope will allow them to push enough buttons to come up with a simple answer.
I also see a lot of stuff in the burn pile 'cause they trusted these things.
As an old timer, I use mockups so I can see it.
Take some scraps and clamps and screws and build a lifesize model of it right on the deck so you can see it.
It really helps to see all the details at once...some things show up that you never even thought of......like subtracting the thickness of your tread from the first riser.......
I also see a lot of stuff in the burn pile 'cause they trusted these things.
As an old timer, I use mockups so I can see it.
Take some scraps and clamps and screws and build a lifesize model of it right on the deck so you can see it.
It really helps to see all the details at once...some things show up that you never even thought of......like subtracting the thickness of your tread from the first riser.......
Learning more about tools everyday
Quote:
Originally Posted by outerbanker1
View Post
ok guys, this is not spam and yes i think ya'll are cute.
i have a deck that where the steps are going is a 45 degree angle. my total rise is from ground to finished height is 26 inches. i am making my finish threads @ 12 inches. so i am cutting my risers, 6.5 rise and 11 inch thread for a total of 3 treads. these will fit the two sides sq. my question is how do i compute the king tread that connects the two that is on a 22.5 degree angle from the sq. ones. strings and straight edge will work, just thought i could get and answer from here. (a sq + b sq = c sq) using 11 inch did not work. thanks, this was my first question to this forum, hope i made your day.
i have a deck that where the steps are going is a 45 degree angle. my total rise is from ground to finished height is 26 inches. i am making my finish threads @ 12 inches. so i am cutting my risers, 6.5 rise and 11 inch thread for a total of 3 treads. these will fit the two sides sq. my question is how do i compute the king tread that connects the two that is on a 22.5 degree angle from the sq. ones. strings and straight edge will work, just thought i could get and answer from here. (a sq + b sq = c sq) using 11 inch did not work. thanks, this was my first question to this forum, hope i made your day.
Quote:
Originally Posted by outerbanker1
View Post
i know the angle is 22.5 and i have a construction master iv calc. how do i calculate the three treads. i know the rise is 6.5 inch and my tread is 11 inch and i need a total of 4 risers and three treads. how to i compute the center tread where they are converging. thanks
I know that a 5/12 angle on the square is 22.5 degrees. 6.5/11 is not the same aspect ratio and would be a different angle. If memory serves me, seems like stair stringers are usually about a 37 degree angle or so.
There are whole books written on how to use a framing square. An amazing tool if one takes the time to learn how to use one.
Bret
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