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Question For Wheelchair Ramp

 
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Old 07-25-2010, 09:56 AM   #1
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Question For Wheelchair Ramp


Hey there. I'm doing a bunch of work on a home, one of the things is to upgrade the wheelchair ramp a bit. Right now it's P/T 3/4" Plywood and rotted out at the bottom where it hits the ground... not to mention they have a rubber mat sitting on top of it that retains water.

It's a simple ramp - maybe 14" high at the highest and extending out about 17', 4' wide. I was planning to construct out of cedar, 5/4 planks for the surface.

My problem is where it meets the ground. There is an existing Interlock sidewalk which I want to make flush with the ramp. I was planning to remove a couple of courses of interlock to make this happen.

So the question is - how do I handle the frame at the bottom of the ramp? It's going to be exposed to the dirt/ground. My concern with digging down below grade I will create a catch-basin where water will pool.... unless I dig a drainage ditch. Hoping to avoid this complexity with a simpler solution.

Are there products out there designed to handle transitions like this? Or do I just taper the joists down to nothing and have them slightly elevated?

Thanks for any input....
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Old 07-25-2010, 10:01 AM   #2
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Re: Question For Wheelchair Ramp


IGNORE! Just found the 'ramp-a-thon' thread....

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Old 07-25-2010, 10:18 PM   #3
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Re: Question For Wheelchair Ramp


Quote:
Originally Posted by sbcontracting View Post
IGNORE! Just found the 'ramp-a-thon' thread....
Mac KNOWS!!!

and, i really need to post up pics of my recent and finished ramp...
https://www.contractortalk.com/f50/an...-thread-80944/
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Old 07-26-2010, 06:46 AM   #4
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Re: Question For Wheelchair Ramp


Question - I was intending to use cedar - looks nicer... but that sure-grip plywood stuff seems to be a lot more sensible.

Are there stick-on grippy-sandpaper that you can buy? We get a lot of snow up here, so I'm not sure that would be enough.

Going to call a couple of specialty plywood shops today to see if they have the sure-grip stuff. But any other suggestions on making the surface winter/slip-proof, other than the sure-grip plywood?

Regards, Mike
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Old 07-26-2010, 06:57 AM   #5
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Re: Question For Wheelchair Ramp


You can add it, and add some some more, and add some more...

It works best on flat level area's but is prone to chipping, peeling, etc... The only places I have see the materials last is on concrete & generally then painted concrete which helps block the water from getting under it

Stain with that sand product (non slip additive) added?
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Old 07-26-2010, 07:35 AM   #6
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Re: Question For Wheelchair Ramp


Yeah, was thinking of something like that... anyone use anything? Not sure of who to even ask ie maybe wood store... such a specialty application..... but probably the way to go
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Old 07-26-2010, 08:36 AM   #7
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Re: Question For Wheelchair Ramp


Don't bother trying to add something to stain. I was asked to do that very thing on a big commercial job some years back. The deck was all ready stained so I used spar eurathane, added polymar beads to it & coated it over the stained cedar deck. It looked & worked great, but only for a short while. It was worn smooth off in about 3 months. There's no way any stain that I know of would hold the polymar beads, soon as it was absorbed into the wood they would just be loose sand on the deck.

In another area, a bridge from the parking lot to the front of the stores, I used these sticky strips that looked like sandpaper on top. They wore out fast too. Keep in mind this was at a very busy place with lots of foot traffic, on a home I'm sure these would have lasted a good bit longer.

One other time, I added crushed walnut shells to paint for a customer that wanted their deck painted. I used a high grade enamel paint that would have been slick when wet so the grit was needed. This worked pretty well, but was a piece of work getting an even amount of grit everywhere. The paint had to be constantly stirred & most of the grit would come off the roller where first applied, like one time around the roller.
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Old 08-05-2010, 06:40 AM   #8
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Re: Question For Wheelchair Ramp


This ramp turned out really nice. I'll post photos later.

What do people prefer for finish? Water-based sealer? It's western red cedar.
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Old 08-05-2010, 07:02 AM   #9
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Re: Question For Wheelchair Ramp


Oil based stains last longer in my opinion, but generally take a few days before they are supposed to be walked on

Water based is fine, just more frequent re-applications

No matter what make sure the deck is fully cleaned & dried before installing the sealer
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Old 08-05-2010, 10:10 AM   #10
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Re: Question For Wheelchair Ramp


can someone please direct me to the rampathon thread
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Old 08-05-2010, 01:50 PM   #11
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Re: Question For Wheelchair Ramp


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Originally Posted by parkers5150 View Post
can someone please direct me to the rampathon thread
https://www.contractortalk.com/f11/ramp-thon-50366/


Mac

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