What Is SafeSmart AdjustaStairs?
Definition: AdjustaStairs is a patented, articulating stair system manufactured by SafeSmart Access, engineered from marine-grade aluminum to provide safe, compliant access across changing elevations, uneven terrain, and complex site conditions. Each unit features self-leveling treads that automatically adjust to the angle and height of the installation, maintaining a consistent, flat walking surface whether the stair is bridging a trench, an excavation, or the gap between two slabs at different heights. The system is designed to replace job-made ladders, extension ladders, and traditional switchback stair towers.
AdjustaStairs' defining feature is its articulating, self-leveling design: as the pitch shifts to accommodate the actual height and angle at the installation point, the treads automatically maintain a stable, predictable walking surface without manual adjustment or site-built modification. Standard models carry a 660-pound weight rating — sufficient for workers to carry tools and materials safely while ascending — and a 24-inch width allows a worker to climb with one hand free, while 48-inch-wide models support two-way traffic so crews aren't waiting at either end for someone else to finish climbing.
Installation is fast and requires no specialized tools or certification: two people can typically set up a standard AdjustaStairs unit in under five to ten minutes. Once secured at the top and bottom and the Lift & Lock handrails are raised and locked into place, the system is ready for immediate use. SafeSmart offers prefabricated height-adjustable models ranging from roughly 3 feet up to 32 feet, including High-Access models reinforced with a bolt-on truss support system and Mid-Landing Bundles that integrate a pre-engineered landing every 12 feet for taller runs. Through Scaffold Exchange, you can find vendors across the U.S. who carry SafeSmart AdjustaStairs and compare their inventory, rental rates, and availability in your area.
How AdjustaStairs Works
The system's self-leveling articulation is what allows the same unit to be deployed across a wide range of heights and angles without custom fabrication or adjustment hardware.
Select the Model for the Required Height
The vertical reach needed is entered into a model selector, identifying which AdjustaStairs configuration — standard, high-access, or mid-landing bundle — is compatible with that height range.
Position & Deploy
The fold-flat, pre-assembled unit is positioned at the access point and unfolded into place by two people, with no tools required for the core deployment.
Secure Top & Bottom
The top of the stair is bolted to a solid structure — a slab edge, timber sleeper, or steel frame — while the base is secured using ground pins, bolts, base plates, or clamps depending on the surface, creating a stable, fixed connection.
Raise & Lock the Handrails
Handrails deploy using the Lift & Lock design and are secured in place with a simple wing nut — no tools or extra hardware — providing rigid, secure fall protection once set.
Key Components of the AdjustaStairs System
AdjustaStairs combines a compact set of engineered components into a unit that arrives essentially ready to deploy, with no site-built fabrication required.
Marine-Grade Aluminum Frame
The structural backbone of the stair, manufactured from marine-grade aluminum for strength and long-term corrosion resistance in outdoor and harsh job site environments.
Self-Leveling Treads
Treads engineered to automatically adjust and stay flat as the stair's angle changes to suit the installed height, maintaining a consistent, stable walking surface regardless of pitch.
H-Brace / Truss Support
An optional structural reinforcement that increases the standard 660-pound rating to 1,160 pounds, and is standard equipment on High-Access models reaching 16 to 32 feet.
Lift & Lock Handrails
Handrails that deploy quickly and lock into place with a simple wing nut — no tools or extra hardware required — providing rigid, secure fall protection once raised.
Top & Base Connection Hardware
Bolts, ground pins, base plates, or clamps used to secure the stair at both the top connection point and the base, selected based on the specific surface conditions at each installation.
Mid-Landing Sections
Pre-engineered landings integrated every 12 feet on taller access runs from 16 to 32 feet, reducing fatigue, improving stability, and helping meet site-specific and CAL-OSHA landing requirements.
Common Applications & Job Site Uses
AdjustaStairs is purpose-built for the wide range of situations where elevations change, surfaces vary, or fixed stairs and ladders are impractical or unsafe.
Trench and excavation access where levels constantly change
Multi-slab construction access between floor levels
Solar inverter and electrical equipment maintenance access
Flatbed truck and loading area access
Deck and mezzanine access during construction
Waterway and battered embankment access
Event stage and temporary structure access
Uneven terrain and sloped surface access on industrial sites
How AdjustaStairs Compares to Other Access Systems
AdjustaStairs is positioned as a faster, self-adjusting alternative to both fixed ladders and traditional scaffold stair towers. Here is how it compares.
Self-leveling articulating stairs
- 660 lbs standard rating; 1,160 lbs with H-Brace
- Self-leveling treads adapt to changing angles automatically
- Sets up in under 10 minutes, no tools, no certification
- Models from 3 to 32 feet, including mid-landing bundles
Modular aluminum stair tower
- 1,100 lbs rated per module; stacks to virtually any height
- Fixed vertical modules rather than an articulating ramp
- Can be crane-installed fully pre-assembled
- Best for fixed multi-level scaffold-style access
Stair access built from scaffold components
- Built from standard frame or ringlock components
- Fixed pitch — no self-leveling articulation
- More labor-intensive to assemble and adjust
- Widely available from any scaffold rental vendor
Single-rung vertical access
- No material-carrying capacity; hands occupied climbing
- Requires three points of contact at all times
- One of the leading causes of jobsite injuries
- Lowest equipment cost, highest relative risk
Find SafeSmart AdjustaStairs Vendors Near You
Use the Scaffold Exchange map to search by location, filter by equipment type, and connect directly with local suppliers who carry SafeSmart AdjustaStairs or compatible adjustable stair systems.
OSHA Compliance & Safety Standards
AdjustaStairs is engineered to comply with OSHA and ANSI regulations for stairway access, and is intended to replace ladders, one of the leading sources of jobsite falls and injuries. Whether AdjustaStairs falls under OSHA 29 CFR 1926 Subpart X (stairways) or Subpart L (scaffolds) depends on how the unit is used and how it connects to the structure — always confirm the applicable standard with your vendor for your specific installation. Taller configurations exceeding 16 feet require mid-landings at the manufacturer-specified interval to meet site-specific and CAL-OSHA requirements.
- Top connection bolted to a solid structure — slab edge, timber sleeper, or steel frame
- Base secured with ground pins, bolts, base plates, or clamps appropriate to the surface
- Handrails fully raised and locked in place before use
- System load rating verified against the manufacturer's specification before use
- Mid-landings installed at required intervals on access heights of 16 feet or more
- Self-leveling treads inspected for proper function before each shift
- Stair positioned to maintain safe clearance from power lines and other hazards
- Unit inspected by a competent person before each work shift
1926 Subpart X
Stairways & Ladders, U.S. Construction Regulations
OSHA Interpretations & Rulings →