Our extra-large aluminum/high-density polyethylene ramp supports up to 300 lbs. and is perfect for accessing pickups, taller vehicles, and stairways. Fully adjustable from 47" to 87", it weighs just 19 lbs. The standard rampweighing in at just 13 lbs.is adjustable from 39" to 72" and supports up to 400 lbs., making it perfect for helping your dog get into (or out of) your vehicle or onto (or off) a grooming table. The half ramp weighs 7 lbs., supports weight up to 200 lbs., and is perfect for accessing lower heights up to 20".