CAT CLASS: HQ-10374

12-18 ft Material Lift

The 12-18 ft material lift is the standard class for commercial ceiling work, handling ductwork, trusses, and rooftop units up to 18 ft heights. With lift capacities between 204 and 363 kg, this size bridges light residential work and heavier industrial applications. Nine models from Sumner and Jet populate this mid-range band.

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Pick a size class — capacity and reach differ across the range.

Key specifications

Specification	Typical range	What it means
Lift height	12–17.5 ft (3.7–5.3 m)	Maximum vertical reach for positioning materials at commercial ceiling and low rooftop elevations.
Load capacity	441–805 lb (200–365 kg)	Safe working load for HVAC equipment, truss bundles, and ceiling material packages.

How to choose

This size suits standard commercial interior work where ceiling heights fall between 12 and 18 ft — HVAC installation, metal framing, and truss placement in retail or warehouse shells. The up-to-12 ft material lift is sufficient for residential ceilings and light commercial spaces below 12 ft. When positioning rooftop units on two-story commercial buildings, parapet walls, or industrial mezzanines above 18 ft, the 18-26 ft material lift provides the necessary reach and stability.

What this size handles

HVAC duct installation in big-box retail with 16 ft ceilings
Roof truss placement on single-story commercial shells
Rooftop unit positioning on low-rise office buildings
Electrical conduit and fixture installation at 14 ft deck heights
Ceiling grid and tile work in warehouse office areas
Lighting fixture installation in commercial lobbies with 17 ft ceilings

Safety & operation

Outrigger or base stabilization systems are essential when lifting loads above 12 ft to prevent tip-over
Load must remain centered over the base; eccentric loading increases tip risk on taller mast configurations
Overhead clearance verification is required before raising mast on sites with sprinkler systems or electrical service
Wind loading becomes significant above 15 ft; outdoor operation may require guy wires or reduced load limits

Transport & logistics

Most units in this class break down or fold for transport in full-size pickup beds or enclosed trailers
Base sections and mast assemblies typically separate for stairwell and doorway access
Total transport weight including all components generally remains under 180 kg, allowing two-person handling

Power & supply

Manual winch operation is standard across this size class, requiring no on-site power
Crank handles multiply operator effort through geared reduction systems for controlled lifting and lowering

Frequently asked

What distinguishes the 12-18 ft class from shorter material lifts?

The extended mast height and reinforced base geometry. Units in this class typically feature wider outriggers and heavier base construction to maintain stability at maximum extension, where the moment arm magnifies tip forces.

Can this size handle packaged rooftop HVAC units?

Depends on unit weight and building height. Residential 3-5 ton RTUs (150-250 kg) fit within capacity, but only if the roofline falls within the 17.5 ft maximum lift height. Larger commercial units or taller buildings require the 18-26 ft class.

How does mast height affect load capacity in this class?

Rated capacity applies at full extension. Some manufacturers publish reduced capacities for intermediate heights, but the 200-365 kg range reflects the maximum safe load at the top of the 12-18 ft envelope.

Compare popular models

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Normalised to the same units. A dash means the figure was not published.

Model	Load capacity	Lift height	Engine power
Jet JML-12X	650 lb (295 kg)	12 ft (3.7 m)	-
Jet JML-12S	450 lb (204 kg)	12 ft (3.7 m)	-
Jet JML-16S	450 lb (204 kg)	16 ft (4.9 m)	-
Sumner Eventer Series Lift	500 lb (227 kg)	16 ft (4.9 m)	-
Sumner Series 2000 Material Lift	650 lb (295 kg)	17.5 ft (5.3 m)	-
Sumner Series 2100 Contractor Lift	650 lb (295 kg)	12 ft (3.7 m)	-