Description
4′ x 12′ ESC ASF4 Steel-Framed Aluminum Trench Box
The ESC ASF4 4′ x 12′ steel-framed aluminum trench box combines a steel frame with aluminum panels to provide a durable trench box for utility, construction, and excavation work. Its 4-foot height and 12-foot length provide additional working length for underground utility projects while maintaining the ASF4 series’ steel-framed aluminum construction.
The ASF4 4×12 has a 925 PSF panel capacity and weighs approximately 3,660 lbs. It provides 24 inches of pipe clearance and 124 inches (10′4″) of length between the spreaders.
Manufacturer data provides maximum depth ratings of 23 feet in B-45 soil, 17 feet in C-60 soil, and 14 feet in C-80 soil, subject to the manufacturer’s tabulated data, proper shield configuration, and evaluation by the project’s competent person.
Key Features
- 4′ shield height
- 12′ shield length
- Steel-framed aluminum construction
- 925 PSF panel capacity
- 3,660 lb approximate weight
- 24″ pipe clearance
- 10′4″ length between spreaders
- Extended working length for utility and underground construction applications
Specifications
| Manufacturer | ESC |
|---|---|
| Product Line | ASF4 Aluminum Steel Framed Shield |
| Shield Height | 4 ft (48 in) |
| Shield Length | 12 ft (144 in) |
| Weight | 3,660 lbs |
| Panel Capacity | 925 PSF |
| Pipe Clearance | 24 in |
| Length Between Spreaders | 124 in (10′4″) |
| Construction | Steel and Aluminum |
Maximum Depth Ratings
| Soil Classification | Maximum Depth Rating |
|---|---|
| B-45 | 23 ft |
| C-60 | 17 ft |
| C-80 | 14 ft |
4′ x 12′ ESC ASF4 Price and Spreader Configuration
The 4′ x 12′ ESC ASF4 Steel-Framed Aluminum Trench Box is priced at $11,525 and comes standard with four 36″ spreaders. This configuration provides a complete trench shield setup ready for assembly and use.
Other spreader sizes are available to accommodate different trench widths and jobsite requirements. Contact Iron Lot for available spreader options, pricing, and assistance selecting the appropriate configuration for your excavation.
Applications
The 4′ x 12′ ASF4 provides more working length than the shorter 4-foot-high ASF4 models, making it a practical option for utility and underground construction projects where a longer protected work area is useful. Potential applications include:
- Water and sewer utility work
- Underground pipe installation
- Utility service connections and tie-ins
- Pipe repair and replacement
- Utility exposure and maintenance
- Street and easement excavations
- General underground utility construction
Suitability depends on the excavation and the dimensions of the pipe, structure, utility component, and equipment involved. Contractors should verify required working clearances and the manufacturer’s allowable shield configuration before use.
Steel-Framed Aluminum Construction
The ESC ASF4 series combines aluminum panels with a steel frame, providing an alternative to conventional all-steel trench shields. The 4×12 weighs approximately 3,660 lbs, so contractors should consider the lifting capacity and operating radius of the equipment used to transport, install, reposition, and remove the shield.
Safety and Proper Use
Trench shields must be selected and used in accordance with the manufacturer’s current tabulated data and all applicable OSHA, state, and local excavation-safety requirements. A competent person must evaluate soil conditions, excavation depth, surcharge loads, groundwater, adjacent structures, equipment configuration, and changing jobsite conditions.
The maximum depth ratings shown above should not be used by themselves to determine whether this shield is appropriate for a particular excavation. Refer to the applicable ESC tabulated data for complete requirements, limitations, and allowable configurations.
Other Steel Framed Aluminum Trench Boxes:
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10′ x 12′ ESC ASF4 Steel-Framed Aluminum Trench Box
$19,795.00 View Product -
4′ x 14′ ESC ASF4 Steel-Framed Aluminum Trench Box
$12,875.00 View Product -
6′ x 12′ ESC ASF4 Steel-Framed Aluminum Trench Box
$13,670.00 View Product -
8′ x 12′ ESC ASF4 Steel-Framed Aluminum Trench Box
$17,345.00 View Product
Browse all trench box sizes and models
Order the ESC ASF4 4×12 from Iron Lot
Contact Iron Lot for current availability, alternate spreader configurations, shipping information, and assistance selecting the right ESC steel-framed aluminum trench shield for your project.








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