Same-day dispatch across Singapore on in-stock parts — plus worldwide shipping to 80+ countries

TRI-ARC Portable Stairs: 12.7 ft Overall Ht - Steel Stairs
TRI-ARCSteel Stairs

TRI-ARC Portable Stairs: 12.7 ft Overall Ht

The TRI-ARC Portable Stairs (SKU 420R91, MPN WISS112242) are steel stairs with a 12.7 ft overall height and 12 steps. They have a 450 lb load capacity and a perforated design, finished in gray.

SKU 3G-OTH-407344

Brand
TRI-ARC
Item
Portable Stairs: 12.7 ft Overall Ht
Category
Steel Stairs
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

TRI-ARC
attr1050557
TRI-ARC
attr1050559
Gray
Manufacturer Part Number
WISS112242
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

TRI-ARC Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The TRI-ARC Portable Stairs (SKU 420R91, MPN WISS112242) are steel stairs with a 12.7 ft overall height and 12 steps. They have a 450 lb load capacity and a perforated design, finished in gray.

Used in

Common applications for TRI-ARC
Warehouse mezzanine access — TRI-ARC fixed ladders (e.g., WLFS0119-Y) for vertical climbs to elevated storage areas.
Manufacturing floor crossover — TRI-ARC crossover bridges (e.g., 7CY88) spanning conveyor lines or equipment.
Maintenance platform entry — TRI-ARC walk-thru fixed ladders (e.g., WLFS0211-Y) for safe transition to rooftop units.
Mobile work positioning — TRI-ARC rolling step stools (e.g., WLAR002165) for tasks at low heights in assembly areas.
Custom access solutions — TRI-ARC configurable platform ladders (e.g., UCL9006246) for non-standard height requirements.
Directional changes in climb paths — TRI-ARC turn platforms (e.g., UCT04242) for 90-degree transitions in ladder systems.

TRI-ARC Products

3G Electric supplies TRI-ARC steel stairs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
TRI-ARC Portable Stairs: 11.9 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 11 Steps (MPN WISS111242). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC
TRI-ARC Portable Stairs: 11.9 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 11 Steps (MPN WISS111242). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC Portable Stairs: 9.5 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 8 Steps (MPN WISS108242). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC
TRI-ARC Portable Stairs: 9.5 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 8 Steps (MPN WISS108242). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC Portable Stairs: 8.7 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 7 Steps (MPN WISS107242). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC
TRI-ARC Portable Stairs: 8.7 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 7 Steps (MPN WISS107242). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC Portable Stairs: 8.7 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 7 Steps (MPN WISS107246). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC
TRI-ARC Portable Stairs: 8.7 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 7 Steps (MPN WISS107246). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC Portable Stairs: 7.9 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 6 Steps (MPN WISS106246). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC
TRI-ARC Portable Stairs: 7.9 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 6 Steps (MPN WISS106246). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.

More from TRI-ARC

View all TRI-ARC parts
TRI-ARC Portable Stairs: 10.3 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 9 Steps (MPN WISS109246). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC
TRI-ARC Portable Stairs: 10.3 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 9 Steps (MPN WISS109246). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC Portable Stairs: 12.7 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 12 Steps (MPN WISS112246). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC
TRI-ARC Portable Stairs: 12.7 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 12 Steps (MPN WISS112246). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC Portable Stairs: 7.9 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 6 Steps (MPN WISS106242). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC
TRI-ARC Portable Stairs: 7.9 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 6 Steps (MPN WISS106242). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC Portable Stairs: 10.3 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 9 Steps (MPN WISS109242). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC
TRI-ARC Portable Stairs: 10.3 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 9 Steps (MPN WISS109242). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC Portable Stairs: 6 ft Overall Ht, Aluminum/Steel, 1,000 lb Load Capacity, Perforated (MPN TAVSM34-AS). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC
TRI-ARC Portable Stairs: 6 ft Overall Ht, Aluminum/Steel, 1,000 lb Load Capacity, Perforated (MPN TAVSM34-AS). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC Portable Stairs: 11.9 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 11 Steps (MPN WISS111246). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC
TRI-ARC Portable Stairs: 11.9 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 11 Steps (MPN WISS111246). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC Portable Stairs: 11.1 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 10 Steps (MPN WISS110246). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC
TRI-ARC Portable Stairs: 11.1 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 10 Steps (MPN WISS110246). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC Portable Stairs: 11.1 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 10 Steps (MPN WISS110242). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.
TRI-ARC
TRI-ARC Portable Stairs: 11.1 ft Overall Ht, Steel, 450 lb Load Capacity, Perforated, 10 Steps (MPN WISS110242). Key specifications — attr1050559: Gray; attr1050557: TRI-ARC.