Maintenance stepladder ProStep

for airplane

Overview
ProStep ultra-compact aluminum rolling ladders are engineered for very narrow aisles, corners, and crowded work areas where conventional rolling ladders cannot maneuver. They offer a compact footprint, the industry's largest published platforms (standard 6 sq ft or 9 sq ft), and an integrated Lift-and-Lock stability system that lifts pivoting casters and plants a rubber-footed base in one motion for rock-solid support.

Key features

• Compact footprint & tight turning radius: Designed to reach very narrow aisles, equipment corners, and spaces other rolling ladders cannot access.
• Large platforms: Standard 6 sq ft (2-ft width) or 9 sq ft (3-ft width) platforms; optional 1 ft or 2 ft cantilever kits expand workspace up to 15 sq ft to reach over conveyors and obstructions.
• Lift-and-Lock stability: Integrated handle lifts casters ~2 in. and plants rubber-footed base so the unit is supported by the base (not by wheels) while in use; handle prevents climbing while casters lowered.
• OSHA & ANSI compliant: Engineered to OSHA 29 CFR 1910.23(e) for mobile ladder stands and platforms and ANSI A14.7.
• Made in the USA: Bolt-together aluminum construction, engineered and manufactured domestically.
• High rated load: Every ProStep model is rated for 1,000 lb (operator plus tools/materials).
• Bolt-together, reconfigurable: Ships flat-packed and bolts together in the field with standard hand tools; cantilever kits bolt on to assembled base; field-replaceable parts available.

Capabilities & configurations
Two platform widths are available: 2 ft (6 sq ft platform) and 3 ft (9 sq ft platform). Standard heights span PS-40 through PS-120 in 10-inch increments (40 in. to 120 in.). Optional 1 ft and 2 ft cantilever add-ons extend reach over equipment and conveyors without compromising guardrail protection.

Platform / width options

• 2 ft wide platform: 6 sq ft workspace, SKU range covers platform heights from 40 in. to 90 in. (6 SKUs referenced for 2-ft lineup).
• 3 ft wide platform: 9 sq ft workspace, SKU range covers platform heights from 40 in. to 120 in. (9 SKUs referenced for 3-ft lineup).

Specifications — 2' Wide Platform
Header: Model | Steps | A Platform Height | B Overall Height | C Working Height | D Base Width | E Base Length | Turning Radius
PS-40 | 4 Steps | 40 in. | 82.5 in. | 106 in. | 24 in. | 67.5 in. | 64 in.
PS-50 | 5 Steps | 50 in. | 92.5 in. | 116 in. | 24 in. | 73.5 in. | 70 in.
PS-60 | 6 Steps | 60 in. | 102.5 in. | 126 in. | 24 in. | 79 in. | 76 in.
PS-70 | 7 Steps | 70 in. | 112.5 in. | 136 in. | 24 in. | 85 in. | 81 in.
PS-80 | 8 Steps | 80 in. | 122.5 in. | 146 in. | 24 in. | 90.5 in. | 87 in.
PS-90 | 9 Steps | 90 in. | 132.5 in. | 156 in. | 24 in. | 90.5 in. | 93 in.

Specifications — 3' Wide Platform
Header: Model | Steps | A Platform Height | B Overall Height | C Working Height | D Base Width | E Base Length | Turning Radius
PS-40 | 4 Steps | 40 in. | 82.5 in. | 106 in. | 36 in. | 67.5 in. | 64 in.
PS-50 | 5 Steps | 50 in. | 92.5 in. | 116 in. | 36 in. | 73.5 in. | 70 in.
PS-60 | 6 Steps | 60 in. | 102.5 in. | 126 in. | 36 in. | 79 in. | 76 in.
PS-70 | 7 Steps | 70 in. | 112.5 in. | 136 in. | 36 in. | 85 in. | 81 in.
PS-80 | 8 Steps | 80 in. | 122.5 in. | 146 in. | 36 in. | 90.5 in. | 87 in.
PS-90 | 9 Steps | 90 in. | 132.5 in. | 156 in. | 36 in. | 90.5 in. | 93 in.
PS-100 | 10 Steps | 100 in. | 142.5 in. | 166 in. | 36 in. | 102 in. | 99 in.
PS-110 | 11 Steps | 110 in. | 152.5 in. | 176 in. | 36 in. | 108 in. | 104 in.
PS-120 | 12 Steps | 120 in. | 162.5 in. | 186 in. | 36 in. | 114 in. | 110 in.

Operation & safety details

• The Lift-and-Lock handle lifts pivoting casters and plants rubber-footed base so the ladder is supported by the base under load; casters are roughly 2 in. off the floor when locked.
• No caster locks are required while locked because the rubber-pad base carries operator weight and friction needed to keep unit planted.
• Every model ships with a guardrail system (handrails, midrails, toeboards) required to meet top platform fall-protection considerations per applicable standards.

FAQ highlights

• What is ProStep? — Ultra-duty aluminum rolling ladder built for tight aisles; available in PS-40 through PS-120 heights, two platform widths, and bolt-on cantilever options.
• Rated working load — 1,000 lb across all models and widths.
• Material — Bolt-together aluminum for corrosion resistance and reduced deadweight versus steel.
• Shipping & assembly — Flat-packed, field-boltable with standard hand tools; cantilever kits bolt on without disassembling ladder.
• Reconfiguration — Bolt-together construction allows swapping cantilever kits, changing platform width, and replacing components in the field.

Technical characteristics / specifications

• Series: ProStep
• Manufacturer / Brand: ErectaStep
• Platform widths: 2 ft (6 sq ft) and 3 ft (9 sq ft)
• Optional cantilever: 1 ft or 2 ft bolt-on cantilever kits (field-installable)
• Model range: PS-40 to PS-120 (increments of 10 in.)
• Steps: 4 to 12 (models correspond to step counts listed in tables; steps include top step)
• Rated capacity: 1,000 lb (uniform, operator + tools and materials)
• Construction: Bolt-together aluminum (frame, platform, steps, cantilevers)
• Turning radius: Specified as 360° in tables; tight turning radius designed for very narrow aisles
• Base support: Rubber-footed base carries load when Lift-and-Lock engaged (casters lifted)
• Standards: Engineered to OSHA 29 CFR 1910.23(e) and ANSI A14.7
• Shipping: Flat-packed; field assembly with standard hand tools
• Made in: USA