Construction trailers or Office trailers are generally enclosed - both because they need to secure expensive tools and equipment, and because they can serve as mobile offices for contractors. They are also used to deploy fiber optic across the country. Technicians work in a safe and controlled environment connecting fiber optic cables.
They often feature amenities like air conditioning, tool boxes, ladder racks, pass-through, storage, and power supply (for running or charging equipment).
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Design and Construction
At their core, construction trailers are typically enclosed utility trailers and typically consist of interior space used for tool storage. They have a durable exterior to withstand the weather, and wiring or plumbing. Larger construction trailers may even be configured with desks, chairs, shelves or other amenities for office work.
The frames and chassis of construction trailers are typically steel, and galvanized steel often used to cover the frame and flooring supports. Flooring is often constructed from wood, and composite materials like plastic or fiberglass are used to cover the walls.
Construction Trailer Common Sizes and Weights
Construction trailers come in various sizes and layouts, however the most popular sizes for contractors tend to be 4 ft. by 6 ft., 5 ft. by 8 ft., and 7 ft. by 14 ft. (and longer).
- 4 ft. x 6 ft. construction trailers are a good size for light-duty tasks and small-scale jobs like residential landscaping, minor home repairs, or as a means to transport a few tools and equipment like saws or paint supplies.
- The compact size makes it easy to tow behind most vehicles.
- For individual contractors or small teams focusing on home renovation or maintenance services, this size provides enough space to transport basic tools, small to medium-sized equipment, and materials for jobs like painting, repair works, or small installations.
- 5 ft. x 8 ft. construction trailers are most versatile and popular among contractors. They are well-suited for a broad spectrum of construction jobs, from residential construction to general contracting.
- They can carry larger equipment such as small tractors, multiple medium-sized generators, construction materials (like lumber, pipes, and concrete), and a significant amount of tools and supplies.
- This size can accommodate materials for framing, roofing, major landscaping projects, and even small vehicles or heavy machinery. They are favored by construction companies and contractors involved in substantial renovation projects, new building constructions, and large-scale commercial landscaping.
- 7 ft x 14–24 ft. construction trailers are the best fit for large construction projects, including commercial construction, large-scale landscaping jobs, and heavy equipment transportation.
- They are capable of hauling skid steer loaders, large generators, substantial quantities of construction materials, and bulky equipment.
- Because of their size, these trailers can accommodate materials for framing, roofing and other more sizable tasks. They are favored by construction companies and contractors involved in substantial renovation projects and new building constructions.
Construction office trailers are usually measured in width (like mobile homes) - either single-wide or double-wide.
In addition to the length and width, another important consideration is the height of the trailer. Low-profile (4 ft. - 5 ft.) or Standard (5 ft. - 6 ft.) height trailers may not be suitable for all kinds of construction projects - particularly when the materials being used are larger and require more clearance. Tall construction trailers can have a range from 6 ft. - 7 ft. in height, which can provide more clearance.
Construction Trailer Add-ons and Features
As a result of the wide range of tasks contractors and construction workers may need to perform, these trailers offer many different configurations, add-ons, and features. These can include:
- Tool racks and shelving: customizable shelving units, racks, and hooks inside the trailer organize tools, equipment and materials efficiently, making them easily accessible.
- Workbenches: built-in or fold-down workbenches provide a convenient space for on-site repairs, adjustments, or assembly tasks.
- Locking and security systems: enhanced locking mechanisms for doors and compartments (like toolboxes) increase security and protect valuable tools and equipment from theft. Cameras and alarm systems are also available to provide additional security.
- Ladder racks: external or internal racks designed to securely transport ladders of varying sizes.
- Electrical outlets: installing multiple electrical outlets inside the trailer provides power sources for charging battery-powered tools or running electric tools (typically available with standard 110v outlets but can also include 220v outlets for higher voltage equipment).
- Power inverters: these can be added to trailers to convert DC power from the trailer’s battery or a tow vehicle’s battery to use standard electrical devices and tools without needing a separate generator or external power source.
- Battery banks: some trailers offer battery banks to store electrical energy for when job sites may not have direct access to electrical utilities.
- Ventilation systems or fans: roof vents or side vents to help circulate air and reduce condensation inside the trailer, especially important for trailers carrying chemicals or fuel (or where contractors may engage in tasks like grinding, sawing or sanding that produce particulates).
- Solar panels: these can typically be mounted on the roof of the trailer to capture renewable energy from the sun (either to charge a battery bank or power low-voltage devices directly).
- Ramp gates: ramps or ramp gates for easy loading and unloading of heavy equipment and materials.
- Exterior or interior LED lighting: high-efficiency LED lights can be installed both inside and outside the trailer to ensure adequate lighting at all times.
- Flooring upgrades: durable floor materials such as rubber matting or diamond plate flooring can protect the trailer floor and provide a non-slip surface.
Construction Trailer Pricing
[body] Construction trailers can vary widely in price, depending on size, construction, and features.
- Entry-Level Trailers: Basic models with essential amenities can start at around $10,000 to $20,000.
- Mid-range trailers: Larger units with more features and customization options may range from $20,000 to $50,000.
- High-end trailers: Custom-built or luxury trailers with advanced technology and premium finishes can exceed $50,000.
Towing and Hitch Needs for Construction Trailers
Construction trailers offer a variety of hitch types that are suited for different types of work contractors might engage in (which may require transporting heavy equipment from site-to-site) and where they are working - some terrain might demand more security and stability.
The most common types for light duty are ball hitch, and pintle hitch - whereas heavy-duty trailers may require gooseneck or fifth wheel hitches. Each has its own pros and cons, and the best fit for your needs will depend on the type of work you do.
Ball Hitch (or Bumper Pull):
- Pros: Easy to connect and disconnect, suitable for a wide range of vehicles, including pickups and SUVs.
- Cons: Generally, not intended for extremely heavy loads compared to other hitch types.
Pintle Hitch:
- Pros: More robust and suitable for heavy loads, can accommodate more movement between the trailer and the tow vehicle, good for rough terrain.
- Cons: Noisier, may require more precise alignment when hooking up, generally used for larger, commercial-grade vehicles.
Gooseneck Hitch:
- Pros: Better stability and weight distribution, allows for heavier loads, provides a tighter turning radius.
- Cons: Requires a pickup truck with a special setup in the bed, not as easily removed as a ball hitch, limiting the truck bed's use for other tasks.
Fifth Wheel Hitch:
- Pros: Excellent stability and weight distribution, ideal for very large trailers.
- Cons: Requires a significant portion of the truck bed for the hitch, limiting its use for other tasks, and the setup is more permanent and complex.
The choice of hitch type depends on the trailer's size and weight, the tow vehicle's capabilities, and the specific requirements of the job or terrain. For personal or light commercial use, ball hitches are quite common due to their versatility and ease of use. For industrial or heavy-duty applications, pintle, gooseneck, or fifth-wheel hitches are preferred for their enhanced stability and load-bearing capacities.
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