Crispy2000Gt

lol i like that, i have to use the factory jack to get it high enough to just use my actual jack, with i had ramps or a low-pro jack

TRUEBLUE3934

^^^^^ This is my answer also.

I designed and built my own ramps out of lumber. I just went and measured the dimensions, and mine are almost exactly the same dimensions as those in your ad. The long ramps allow clearance for lowered vehicles with spoilers, etc.

I made mine so that once the car is up I can remove the ramp portion for easy access under the sides of the car. It also makes it much easier to store the ramps when not in use. You can use 2x10 or 2x12 depending upon how wide you want them to be. The cost was FAR less than $300, and I wouldn't trade mine for those in the ad. The only advantage I see with the purchased ramps is the lower weight vs wood. However, mine are not really heavy to move around.

The ramps are nice because you can quickly put one end of the car up, and then jack up the other end and support it on jack stands to get it level.

TRUEBLUE3934

Just keep 2 pieces of 2x8 around to dive onto so that your "actual jack" will fit under the car. To make them even taller, I actually made 2 mini ramps out of 2x8 to take to the track with me for this purpose. Just stack 2 2x8's together with one being approximately 6-8" longer than the other(screw or nail them together so they don't slip across each other). These will fit under the side skirts as well(between the front and rear wheels).

TRUEBLUE3934

The DIY ramps Syracuse posted will definitely work, but you don't have to make the entire ramp out of stacked lumber.

I use stacked lumber for the 2 towers which the car is parked on when up, but use 2x10 boards(with supports halfway up) for the ramp portions. The 2x10 supported at a point halfway up the 60" span don't deflect enough to be seen when the car is on them. This is how I am able to remove the ramps once the car is up and what makes them easy to store. It also saves quite a bit of lumber, expense, and weight.

As for driving over the ramps, I added a piece of angle bracket to the rear edge of the ramp to prevent driving over the edge. It works as a chock on one side, and I use small sized rubber chocks behind the wheels if I intend to jack up the other end of the car. I can assure you, there is nothing unsafe about the use of these ramps. LEVEL surface is absolutely an excellent comment above! Luckily, I have a garage to work in so I have a perfect surface to work on.