Atrium (spider) lifts in the 70 to 80 foot class are built for access in tight, hard-to-reach areas. Stowed widths typically fit through standard double doors, and the tracked undercarriage provides low ground pressure for travel across finished floors. Outriggers level the machine for safe setup on uneven surfaces in lobbies, atriums, and other confined spaces. In this range, platform heights are about 70–80 feet with working heights generally in the high-70s to mid-80s, and horizontal outreach commonly in the low-30s to around 40 feet. Platform capacities often fall between 400 and 500 pounds. Many units run electric or bi-energy power for indoor use with the option to operate outdoors when needed.

Atrium (spider) lifts in the 60 to 65 foot class are built for access in tight, hard-to-reach areas. Stowed widths typically fit through standard double doors, and the tracked undercarriage provides low ground pressure and non-marking travel on finished floors. Outriggers level the machine on uneven surfaces for safe setup in lobbies, atriums, and other confined spaces. In this range, platform heights are about 60–65 feet with working heights generally in the high-60s, and horizontal outreach commonly around the mid-20s to low-30s feet. Many units run on electric or bi-energy power for indoor work with the option to operate outdoors when needed.