Wasn't comfortable using my old black plastic ramps to do the oil change on my pickup truck, it's much heavier than my old car. Couldn't find any ramps I liked with a price I liked (ramps rated for trucks can be $$$) - so I built my own. Very happy with how they turned out. Even with the higher ground clearance of the truck the 6 extra inches from the ramps makes a huge difference due the skid plates under the front end (Titan Pro4x). They support boats in dry dock using wood so why not my truck in my driveway?
I used the instructions posted here: http://azoffroading.com/blog/do-it-yourself-wooden-car-ramps/ and they worked well. You can customize to whatever you like though. I added metal gate handles on the side and front of the ramps, which I'd definitely recommend because these things are hefty! Each ramp basically consists of one entire 12 foot 2x10. Total cost approximately $40 including the lumber, screws, and handles. You could probably knock about $15 off the price if you go with cheaper screws and skip the handles (or use ones you already have laying around). I skipped the drawer liner under the ramps as I didn't see the need. They stayed perfectly planted as I drove up - which I'd expect under the front end of a 6000 pound truck. I used and wholeheartedly recommend the good wood screws with the T25 torx head on them which were about $10 for the the container - not including the better material they are mode from - not having to worry about stripping them out with the impact driver alone makes them worth the price in my opinion.