Odd Deck Lumbar Width? Rip Cut or 4-3/4 in boards buyable?

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Old 05-01-18, 02:34 PM
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Odd Deck Lumbar Width? Rip Cut or 4-3/4 in boards buyable?

Hello,

I was about to replace some old rotting deck steps to help a friend and I was very surprised by the width of the boards. So surprised actually I forgot to check the depth to see if the where 5/4th decking or 2x lumbar, but I wanted to ask you guys if anyone has seen this as each step going up to this 2nd floor deck is made up of a 3-1/2" wide board combined with a 4-3/4 in board. Needless to say it was a surprise for me when I got there.

Mainly I guess I want to know if I need to rip cut each replacement board or if this is a standard size lumbar I am not familiar with? I realize the inside board may be just a 2x4 as I mentioned I forgot to check the depth, but the other? Do you think it is decking or all 2x6 that are rip cut? Or is it some 5/4 x 4 and 5/4 x 5 deck boards that I am not familiar with? Or some other odd 2x5 lumbar I am unfamiliar with?

Any thought or insight appreciated! Trying to save extra trips over there.

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Last edited by ajktek; 05-01-18 at 02:48 PM. Reason: 5/4 x 5 board size
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Old 05-01-18, 03:26 PM
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My front porch steps are wider [depth] than normal. Mine consist of a 2x6, 2x4 and then a 2x6 with a little ripped off of it [less than an inch]

I suspect you'll need to use a 2x4 and a 2x6 ripped to size. If it's 5/4 decking you'd rip both to equal sizes.
 
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Old 05-02-18, 01:05 PM
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Since the total step width right now is just about 9in, would it be a bad idea for me to just use a 2x10 as a replacement without ripping it at all? Sounds way easier and I would think water runoff should still be okay.

What do you guys think?
 
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Old 05-02-18, 01:56 PM
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A 2x10 is more likely to to warp.
 
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Old 05-02-18, 03:29 PM
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Looks like dimensional lumber and not 5/4 lumber. The wider the board the more likely you will have warping. A 2x10 is only 9 1/4" wide and if used needs to make sure the cup on the grain faces down. I'll say it is easy to rip boards to fit, then again, I have a table saw. It can be done fairly easily with a skill saw with a 2x4 as a guide clamped to the 2x6.
 
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Old 05-02-18, 03:42 PM
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If you use a skil saw and don't want to clamp on a fence, place the cut edge next to stringer that way any discrepancies in the cut will be harder to notice.
 
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Old 05-02-18, 04:47 PM
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I would use 2x10 as long as it doesn't make your nosing stick out more than 1 1/4". Can't tell from the pic if you have risers or not but you could add a 1x6 riser in front if needed.
 
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Old 05-02-18, 05:46 PM
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I always used a rip guide on a circular saw and found it worked very well. When buying a new circular saw my number one rule was it must have a rip guide with it or one that fit I could buy.
 
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