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Slippery outdoor wooden stairs - inlaws

Posted on 6/22/26 at 2:44 pm
Posted by CatfishJohn
Member since Jun 2020
20966 posts
Posted on 6/22/26 at 2:44 pm
My inlaws have a bunch of wooden stairs leading to their dock and they get so slippery with mold/mildew/whatever green shite grows on them. FIL slipped. He's fine, but falling elderly is scary.

He doesn't have a pressure washer and we live out of state. Is there a spray I can ship to his house that would largely help that he can attach to his hose?

I use 30 Second Outdoor cleaner at my house, but not sure if there is something better. I'm searching for pressure washer companies nearby his house, but haven't had luck. They live in the sticks.

Posted by ItzMe1972
Member since Dec 2013
12754 posts
Posted on 6/22/26 at 2:49 pm to
Get those steps cleaned up and use something like pictured below. 30 Second Cleaner or Pressure Washer may work. Follow directions on item below.



LINK
Posted by Shexter
Prairieville
Member since Feb 2014
21144 posts
Posted on 6/22/26 at 3:25 pm to

Mix this according to the directions, spray on, wait 10 minutes, spray off.

I'd add some of the adhesive sandpaper tread strips also.

Posted by CatfishJohn
Member since Jun 2020
20966 posts
Posted on 6/22/26 at 3:39 pm to
Just ordered him some Jomax.

I'm not sure those adhesive pads will work. Pretty old wood that's been outdoors for a long time. He's also going to think they're ugly, but I'll try

Thanks guys.

Still working on a pressure washer service.
Posted by tigger4ever
Member since Apr 2021
1522 posts
Posted on 6/22/26 at 4:25 pm to
We tried those strips on concrete. They peeled off pretty quickly.
Posted by MemphisGuy
Germantown, TN
Member since Nov 2023
14995 posts
Posted on 6/22/26 at 4:37 pm to
Jomax then....

Anti Skid Paint
Posted by 9rocket
Member since Sep 2020
1745 posts
Posted on 6/22/26 at 8:46 pm to
In a pinch I have used roofing shingles, nailed down. Redneck, I know, but works perfectly. Cheaper, too.
Posted by Icansee4miles
Trolling the Tickfaw
Member since Jan 2007
32283 posts
Posted on 6/22/26 at 9:06 pm to
Bridge Side Marina has those abrasive pads on their steps and I liked them enough to put them on our deer stands.
Posted by BoogaBear
Member since Jul 2013
7396 posts
Posted on 6/22/26 at 9:23 pm to
You can do like the people we bought from and put down astroturf.

Be cognizant that the wood needs to drain and you don't want to create a situation where water sits causing wood to rot faster....like glueing down astroturf.
Posted by DMAN1968
Member since Apr 2019
13461 posts
Posted on 6/22/26 at 10:47 pm to
Define a "bunch of wooden stairs".

When you are heading over there for a visit clean the stairs. Prime them. Put a layer of paint on and...while still wet...sprinkle some crushed Walnut shells (Also a form of sandblasting material) and let it dry. Then add another coat or 2 of paint.

A non-slip stair that is discreet and blends in.

You can get the crushed walnut shells off Amazon or a local pet store. It's used for reptile enclosures.

Depending on coarseness of the shells it can be very non-slip.
Posted by AaronDeTiger
baton rouge
Member since Jun 2014
2444 posts
Posted on 6/22/26 at 11:15 pm to
Handi-Treads

Just screw them down.

Posted by CatfishJohn
Member since Jun 2020
20966 posts
Posted on 6/23/26 at 8:41 am to
quote:

Define a "bunch of wooden stairs".



At least 30 wooden stairs going from their back porch down to the lake. They need to be replaced probably, but he doesn't want to do that. So I'm going to make lemonade out of lemons somehow.

He paints them with outdoor deck paint/sealer. He loves to paint. So I like the walnut idea. That'll blend in. I'll clean them next time I'm there and buy him some more paint and walnut shells or something similar.

Bonus - they have a very prolific walnut tree.

Posted by Sams Crow
Member since Apr 2026
308 posts
Posted on 6/23/26 at 9:53 am to
A gallon of waterproof glue rollered on to a clean surface, lightly sprinkle some sand. Prob good for 2-3 years.
Posted by DMAN1968
Member since Apr 2019
13461 posts
Posted on 6/23/26 at 9:21 pm to
If you take a glass or plastic wide mouth container and poke holes in the lid you can use it like a big salt shaker for the crushed shells. It gives you more control...the bigger the holes the more material comes out obviously.

It has the added benefit of being sandable should it need to be in the future.

Sand will also work but it's a bitch to get off if you need to.
Posted by Spankum
The Sip
Member since Jan 2007
62670 posts
Posted on 6/24/26 at 12:23 am to
I think the best thing would be these handi treads that Aaron posted.


If the wood is very weathered, nothing is going to stick on them.
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