Stinar offers three models of chassis mounted passenger stairway: SPS-3517 (88-212" service range), SPS-3518 and SPS6018 (96-228" range service range). The SPS-3517/18 has 48" wide steps and 72" wide platforms. The SPS-6018 has 60" wide steps with a 96" wide platform. Both have a variety of options. Also available, are two models of towable stairways to fit all passenger boarding needs.