A wheelchair lift (1) includes a platform assembly (10) to receive a wheelchair, the platform assembly (10) being made from aluminum, a supporting assembly (20) to moveably hold the platform assembly (10), the supporting assembly (20) being made from aluminum, and a coupling device (30) to pivotably couple the platform assembly (10) to the supporting assembly (20), the coupling device (30) being made from one of steel or high strength aluminum or titanium or magnesium or combinations thereof. The platform assembly (10) includes a number of profiles (101, . . . , 107) of aluminum. The coupling device (30) is fixed to a first one of the plurality of profiles (101) of the platform assembly (10), and is pivotably coupled to the supporting assembly (20).
