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Re: stair layout [Re: Wright Brothers] #6677995
11/28/19 10:35 AM
11/28/19 10:35 AM
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Wright Brothers Offline OP
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I was figuring Oskys way. Only have to remove and reinstall 1 wire.
That's the proposed, once torn out, actual kicks in. And yes I figure an extra riser (2x backer) for this.
I'm real confident about hanging. The hem in that area is like 2 1/4" thick.





Re: stair layout [Re: trapper les] #6677999
11/28/19 10:41 AM
11/28/19 10:41 AM
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Posts: 9,295
Northern MN
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Osky Offline
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Originally Posted by trapper les
Maybe, or you'll need to shorten the length of the top tread the depth of the backer if it's landing height.


i will back away, I must have missed something. I have always had a 1/2 or 3/4 inch hanging plate across the top of the stringers. Width of the pocket/stairs and around 14" vertically. If exterior it's a piece of treated plywood. Screw the stringers into the plywood, adjusting for the plywood becoming the top rise.

Thanks guys
Osky


"A womans heart is the hardest rock the Almighty has put on this earth, and I can find no sign on it"

Jabless in Minnesota

www.SureDockusa.com
Re: stair layout [Re: Wright Brothers] #6678003
11/28/19 10:49 AM
11/28/19 10:49 AM
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Wright Brothers Offline OP
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I get what both you guys are saying and thanks.
My stringer wood is plenty long enough to use the backer, it is not in the above calculation is all.





Re: stair layout [Re: Wright Brothers] #6678088
11/28/19 12:06 PM
11/28/19 12:06 PM
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My tread number was wrong too. Embarrassing how math erodes.
I bucked up the square and it seems correct.
Reason I did not include the backer at top, there is a landing and that will be difficult to type figure on here.
I do have the plan there.

After my good saw returns home with fresh bearings, I'll get after it.

Thanks everyone.





Re: stair layout [Re: Wright Brothers] #6678116
11/28/19 12:55 PM
11/28/19 12:55 PM
Joined: Dec 2012
Posts: 540
Ohio
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Cooncreek II Offline
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Ohio
Always one more riser than treads.
Measure total height, divide by 7. Perfect rise is between 7 and 7 1/2 inches. Anything left over is divided into each riser.
Whatever you use for treads take that thickness off bottom of stringers.

Re: stair layout [Re: Wright Brothers] #6678129
11/28/19 01:04 PM
11/28/19 01:04 PM
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Posts: 361
NORTH DAKOTA
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Duckstick80 Offline
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You should have 11 steps with the first step being from upper floor to first step on stair stringers.
Cut 10 steps on stringers @ 7 7/16"+
Cut 7" runs and cut treads 8 1/4" to make 70" run and wider tread.
Cut the thickness of risers off the back of first step where they attach after you cut stringers so it's not wider than the rest.
Cut the depth of stair tread thickness off the very bottom of last step where it meets the floor so first step isn't taller.

Buy yourself a set of stair/rafter buttons for your 2' square. They are about 7$ and priceless when laying out stairs and rafters.

Last edited by Duckstick80; 11/28/19 01:08 PM.
Re: stair layout [Re: Wright Brothers] #6678152
11/28/19 01:24 PM
11/28/19 01:24 PM
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Posts: 361
NORTH DAKOTA
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Duckstick80 Offline
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When you attach the stringers measure down from the finished floor 7 7/16" plus the depth of the treads and draw a level line to attach the stringers on. It's easy to forget the tread depth on this measurement if you haven't built many stairs. Draw lay out on one stringer cut it out then trace it on the rest to speed things up and keep everything the same.

If the floor isn't 100% level hold a 6' level off the top of the finished floor and measure down at the end (71" out) on both sides of the stairs. The stringers don't make contact directly below the back of the stairs and sometimes the measurement varies 1/4" or so to where the stringers sit on the floor.

Last edited by Duckstick80; 11/28/19 01:28 PM.
Re: stair layout [Re: Wright Brothers] #6678154
11/28/19 01:24 PM
11/28/19 01:24 PM
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Posts: 158
Iowa
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KJD357 Offline
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Iowa
The standard for stairs is 7-11, shoot for around 7 inches of rise And around 11 inch treads. Then devide the fractions left over equally between all the stairs. With your measurements you’re gonna end up with stairs that either you’ll have to take huge steps to get up each tread or very narrow treads that your foot won’t fit on, or you’ll have to walk sideways to get up and down. Is there any way to get more run?

Re: stair layout [Re: Wright Brothers] #6678260
11/28/19 03:28 PM
11/28/19 03:28 PM
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Posts: 550
Tug Hills, NY
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Bass1 Offline
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I build custom stairs for a living (trimcraftcarpentry.com) and here are my calculations. 11 risers at 7.45" and 10 treads at 7.2" (by code treads need to be 9.25" minimum with overhang). Illegal by any code and very dangerous. They will be almost 45 degrees. Going up will be marginally safe but coming down is a trip to the hospital waiting to happen, especially difficult for children and older folk. Better off to build a ladder.

Re: stair layout [Re: Wright Brothers] #6678271
11/28/19 03:45 PM
11/28/19 03:45 PM
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perry co.Pa
wetdog Offline
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I'll ask what no one else has.
What is your headspace to the header?
With only 80 some inches, you have 2 choices
Duck or trip
Good luck

Re: stair layout [Re: Bass1] #6678652
11/29/19 05:40 AM
11/29/19 05:40 AM
Joined: Dec 2006
Posts: 2,192
AR
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TurkeyWrangler Online content
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Originally Posted by Bass1
I build custom stairs for a living (trimcraftcarpentry.com) and here are my calculations. 11 risers at 7.45" and 10 treads at 7.2" (by code treads need to be 9.25" minimum with overhang). Illegal by any code and very dangerous. They will be almost 45 degrees. Going up will be marginally safe but coming down is a trip to the hospital waiting to happen, especially difficult for children and older folk. Better off to build a ladder.



Sounds like stairs going down to my basement.


Poor people have poor ways.
Re: stair layout [Re: Wright Brothers] #6678722
11/29/19 08:42 AM
11/29/19 08:42 AM
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Posts: 25,432
Georgia
warrior Offline
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The formula I used when I was framing was two risers plus one tread must fall between 24 and 25 with a minimum of 10 inches to put your feet on. The ten could include bullnosing/overhang not to exceed an inch.


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Re: stair layout [Re: Wright Brothers] #6678750
11/29/19 09:26 AM
11/29/19 09:26 AM
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North East Kansas
Marty Offline
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On deck stairs I make the outer edge of the tread 1/2 bubble above actual level. Generally stairs are a pia especially by yourself.


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Re: stair layout [Re: Wright Brothers] #6678796
11/29/19 10:52 AM
11/29/19 10:52 AM
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At the top, there is a cellar door that opens out.
The only way I see to stretch the OA run is to make the first step be a riser, (stepping down) and I don't think I want to do that.
I'd pay someone to have a look and advise.

I like the ladder idea lol, much easier.





Re: stair layout [Re: Wright Brothers] #6678841
11/29/19 12:07 PM
11/29/19 12:07 PM
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Northern MN
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A sloped ladder with large treads can be a good solution as long as it meets code and isn't a glitch in your insurance coverage for any reason.

Osky


"A womans heart is the hardest rock the Almighty has put on this earth, and I can find no sign on it"

Jabless in Minnesota

www.SureDockusa.com
Re: stair layout [Re: Wright Brothers] #6678846
11/29/19 12:12 PM
11/29/19 12:12 PM
Joined: Mar 2011
Posts: 25,390
williams,mn
trapper les Offline
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Good luck, no matter what you do, lol

Think it through !


"Those who hammer their guns into plowshares will plow for those who do not."
Re: stair layout [Re: Wright Brothers] #6678848
11/29/19 12:14 PM
11/29/19 12:14 PM
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Wright Brothers Offline OP
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Laddervator





Re: stair layout [Re: Bass1] #6678850
11/29/19 12:20 PM
11/29/19 12:20 PM
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McGrath, AK
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white17 Offline

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Can you put a landing half way down and make a 90 degree turn ?


The thing that makes stair confusing is that most guys don't do enough of them. If you do them regularly they become just like everything else.


Listen to Bass 1 !!


Originally Posted by Bass1
I build custom stairs for a living (trimcraftcarpentry.com) and here are my calculations. 11 risers at 7.45" and 10 treads at 7.2" (by code treads need to be 9.25" minimum with overhang). Illegal by any code and very dangerous. They will be almost 45 degrees. Going up will be marginally safe but coming down is a trip to the hospital waiting to happen, especially difficult for children and older folk. Better off to build a ladder.


Mean As Nails
Re: stair layout [Re: Wright Brothers] #6678853
11/29/19 12:26 PM
11/29/19 12:26 PM
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McGrath, AK
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white17 Offline

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Originally Posted by Wright Brothers
At the top, there is a cellar door that opens out.
The only way I see to stretch the OA run is to make the first step be a riser, (stepping down) and I don't think I want to do that.
I'd pay someone to have a look and advise.

I like the ladder idea lol, much easier.




Are you saying that ...if you are standing on the stairs the door opens towards you ?? If that's the case,you MUST have a landing at the top. I don't recall the exact code requirements but I believe it must be 4 feet minimum


Mean As Nails
Re: stair layout [Re: Wright Brothers] #6679055
11/29/19 05:37 PM
11/29/19 05:37 PM
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Wright Brothers Offline OP
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Door opens away from the stairway, not into it.
No room for even a one step landing at bottom, no headspace.

I've built quite a few, this one is challenging. 1897.

"Door opens away from the stairway, not into it."
quote

More I think about it, the first top step can step down, that gains 14" run.
I can cheat back the headspace at bottom "a little" but a lot of work.

Building it in my head for now until my good saw comes home.
Then I go for it.





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