[pairodice]

I’m going to build some ramps out of treated plywood or 2x construction.  I’ve seen many different styles but like the type that are made of plywood as they seem really strong.  I bought a Hydraulic 20-ton jack from HF and am wondering if I can use it to lift the coach enough to get the coach up on the ramps (probably 6-10inches tall).  I don’t want to have to deal with ramps. Then I will put the jack stands under the coach and maybe cribbing.  I’m pretty paranoid about getting under the coach and want it safe...

[pairodice]

So I have decided to head to HD and get two sheets of 3/4” non-treated plywood and cut it into three 18” wide pieces. Then I will cut these down to 60”, 54”, 48”, 42”, 36”, 30”, 24” with an extra 48” from Treated plywood. Hoping 24” long will be big enough to set the tires on and that 18” WIDE will be wide enough to get at least one of the dual wheels up on (maybe both) and have the tag hanging off the back of the ramp.
Is there any reason I should use ‘Treated’ for the whole thing? Will it be stronger?
I will also be blocking the front wheels and using my new 20ton jack stands on the jacking plates (frame rails?) or maybe the axles... I’m going to cross-post this on WOG and see what kind of responses I get there also...

[Doug Musick]

So did you get the wood pieces made and how did they work?

I just saw the post.  Last year I was wanting to make something similar for multiple uses:  jack base, to get the Jack higher if needed, parking risers in spots where the slope is more than the leveling system can accommodate, and to get the coach high higher in the air for more work room.  It's easier using these and the airbags to get about 14" of clearance and then cribbing or using the jack stands for safety.

I first just cut a treated 2 x 12 into 20" lengths (so 11.5" x 1.5" x 20" actual size). It worked a few times but the 2 x 12's split after only a few uses.

Next I tried 2" thick plywood cut 12" x 24" (so 2" x 12" by 24" actual size).  The plywood ones have worked great.  Sometimes I stack them 2 high (4") and the Newell drives up on them just fine.  I carry 8 of them with me.

My coach has 11R 24.5 tires which are narrower than those of you running 365's or 315's so you may need 14" or 18" wide blocks  but the 24" is plenty long even for my tall 11R 24.5 tires.