Jacking up Boxster with Jack Stands
 

Im going to jack up my Boxster to change the oil and change wheels and tires in the next couple of weeks and Iam trying to gather all the necassary tools to do so. Im going to jack my car up this way,http://www.iq.dynip.com/~gary/hacks/jack/jack.html
but I have a couple of questions I though you guys could help with. Could this technique bend or mess up any part of the car? Does anyone know what size wood he used for the jack stands? And most importantly is this way safe?

Blinkwatt, did you try this yet? Curious. Especially concerned with it being a convertible with a bit more flex.

Looks like he's using 2Xs on the jack and the stands. The main thing here is that the rim has someting a bit softer than it to "bite into". I've jacked my car up using 3-4 thing pieces of plywood in the jack "dish," 2X10s at the wheels and doing it incrementally as he suggests. Additionally, being a belt and suspenders guy, I put the brake on, keep the car in gear and chock all wheels

I don't like lifting on the side rails like that. One slip and you can really mess up the car.

I jack the front up first and put it on ramps. Next, I use the rear jacking points to lift the front up high enough to go on the stands (I put it on ramps first so the sideways tilt is not so high when lifting it for stands in front). The small wood piece is ok on the stands. Others have used hockey pucks with success. Now that the car is on the stands in the front, I slide the jack under the main rear support (at the front of the metal engine/differential cover). I jack it under one of the bolts that's holding the cover on so I don't bend up the cover. That allows me to lift both rear wheels at once and slip the stands under the jacking points. Reverse to lower it.

For protection you can use just about anything soft on the floor jack. I have been using some scrap pieces of floor board molding left from when I replaced the floors. It's soft, pressed saw dust so it doesn't damage the jacking points and it sinks into the jack a little so it won't slide.

We get a lot of free mouse pads where I work. I have found it to be great jack padding material.