New Deck Stair Stringers

Old 05-05-17, 08:09 AM
Thread Starter
Join Date: May 2017
Location: USA
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
New Deck Stair Stringers

I have completed a deck project and am now building the stairs.
My question is this:
I purchased the pre-cut stringers and have placed them against the deck rim where they would meet the 7" requirement for the first step off of the deck, however this makes them land into the dirt, which I dug out. The issue is that the first step at the ground looks like it would be under ground! Is that normal or do I simply need to shorten the stringer by one step? Is the solution that easy or am I over thinking the whole thing. Can pre-cut stringers be trimmed or adjusted to account for things like this?

Many Thanks in advance for any much needed suggestions on this.
Old 05-05-17, 09:47 AM
Join Date: May 2015
Location: USA
Posts: 3,184
Received 174 Upvotes on 142 Posts
You can trim one or more whole steps off premade stringers if necessary, but should not trim a partial step as that will make the rise unequal, which is a code violation and a trip hazard.

It's usually recommended to pour a small concrete landing slab at the base of the stairs, and that can be set at the right height for the stringer. Then you can adjust the grade of the soil to match the slab.

But if the height of the deck is such that you will be way off with a premade stringer, then best to custom cut them to suit the deck and provide a safe stair.
Old 05-05-17, 04:37 PM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 36,607
Upvotes: 0
Received 9 Upvotes on 8 Posts
If you do as Paul suggests in making your own from 2x12 lumber, make sure you adhere to a common 21 united inches for rise and run. If you shorten the rise to 6", make the run close to 15". Your body stride will acclimate to it. You may note that many Forest service attractions, or waterfall observation areas will use a 4" rise, and a 17" tread. Smooth flow of walking without the feel of climbing steps.
Old 05-06-17, 03:38 AM
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 45,729
Received 854 Upvotes on 748 Posts
..... and don't forget to deduct the height of the tread from the first step when you cut the stringer - don't ask how I know
Old 05-06-17, 06:26 AM
Join Date: Feb 2006
Location: USA
Posts: 6,413
Received 65 Upvotes on 56 Posts

Raise the stringer against the deck so that the top tread will be flush with the surface of the deck.

Thread Tools
Search this Thread
Ask a Question
Question Title: