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Old 09-17-2007, 01:46 PM   #1
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Stair question


I have to replace a set of cedar stringers comming off of a bay of a pre-existing home. The existing set of steps has 3 risers and 3 treads but the homeowner would like to have 4 of each. They are attached into the back of the ledger board with stair straps onto the back of the stringer. The ledger board has about 5,000 nails in it and would be a disaster to take down. Is there a way to safely attach the new set of stringers to the ledge board without removing the ledger board from the house? Also, the rise will be 7 and 3/16 for each riser, and I'm having trouble trying to find an appropriate run. Would 11 inches be a good run? (approximately the width of 2 2x6's). Any feedback would be appreciated. Thank you! -troy


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Old 09-17-2007, 02:05 PM   #2
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IIRC the "general rule" 7" rise 11" run


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Old 09-20-2007, 10:12 PM   #3
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Old 09-21-2007, 08:29 PM   #4
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What kind of cedar?

Well anyway it doesn't sound like anyone will fall very need a field skewable stringer/joist hanger.


Last edited by Stubbie; 09-21-2007 at 08:36 PM.
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Old 09-21-2007, 09:37 PM   #5
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11" is the ideal run but I usually subtract or add the equal amount that you subtract or add from the rise except opposite.

Ex. If your rise is 7 1/4" then make your run 10 3/4".

You should be able to attach to the existing ledger. Perhaps scab on a piece of 1/2" plywood twice as wide as the existing ledger, then put another equal 2X behind the plywood and below the existing ledger. This will give you more room to work with.

Like this > :l (Dots being ledgers l being plywood)

Make sense? Of course you would have to face it with cedar.
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Old 09-21-2007, 11:07 PM   #6
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Just use stair straps (simpson FHA18 or FHA24) nailed to the face and then covered with cedar.


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