US Construction Trailers — Steel Storage Container Specialists

Steel Storage Containers —
Buy or Rent, Any Size

New and used steel storage containers — conex boxes, sea containers, ISO shipping containers — delivered to your job site anywhere in the U.S. Secure, weatherproof, and ready in 24 hours. Get up to 5 free competing quotes.

Get My Free Container Quote Now

24 Hr
Delivery to Site
5′–40′
Container Sizes
5
Free Competing Quotes
50
States Served

Buy or Rent Quality Steel Storage Containers — Any Type, Any Size

From industrial job site storage to international cargo delivery, steel storage containers — also called conex boxes, sea containers, or ISO shipping containers — are one of the most affordable, secure, and reliable means for protecting your investments. Whether you need a compact 10-foot unit for a small job site or multiple 40-foot high-cube containers for a large infrastructure project, US Construction Trailers connects you with the right steel container at the most competitive price through our nationwide supplier network.

Steel storage containers provide an unmatched combination of security, weatherproofing, portability, and value. Unlike wooden or plastic storage options, heavy-gauge steel containers lock up tight against theft, keep out pests, and stand up to rain, humidity, temperature extremes, and wind — protecting your client’s investments and your equipment around the clock.

New and used steel containers are available for purchase or rental. All sizes come with delivery to your site, and many can be on-site within 24 hours of your order. Request your free quotes below and receive up to 5 competing bids from verified local suppliers.

Get Up to 5 Free Quotes →

Types of Steel Storage Containers Available

We source the right steel container type for your specific storage, shipping, or on-site need.

📦 Conex Boxes / ISO Containers

ISO standard conex boxes built to secure your items in configurations from 5-foot to 40-foot lengths. Standard 8×20 and 8×40 steel containers are the most common job site storage solution — lockable, weatherproof, and immediately usable on delivery.

Common sizes: 10′, 20′, 40′, 40′ High Cube
🚢 Sea Containers / Dry Containers

For international cargo delivery and shipping goods overseas. Dry containers handle bulk cargo, full container loads, and general shipping needs. Ideal for businesses with international logistics requirements or large-volume shipping operations.

Common sizes: 20′, 40′, 45′
⚙️ Specialty & Custom Containers

Oversized cargo containers, military-grade units, refrigerated containers, and custom-modified containers for unique applications. Mobile office conversions, tool rooms, and specialty storage configurations also available through our supplier network.

Options: Custom quoted

Steel Storage Container Price Guide

Estimated purchase and rental prices for steel storage containers by size. Actual pricing depends on condition, location, and features.

Size Interior Volume Used Buy Price New Buy Price Rent /Month
10-Foot Container ~560 cu. ft. $1,500 – $3,000 $3,500 – $5,500 $75 – $150
20-Foot Standard ~1,170 cu. ft. $2,500 – $4,500 $5,000 – $8,000 $100 – $200
40-Foot Standard ~2,390 cu. ft. $3,000 – $6,000 $7,000 – $12,000 $125 – $250
40-Foot High Cube ~2,694 cu. ft. $3,500 – $7,000 $8,000 – $14,000 $150 – $300

*Price ranges are estimates. Location, condition, and market demand affect final pricing. Get your exact price →

Why Steel Storage Containers?

The most secure, weatherproof, and cost-effective portable storage solution available for job sites and businesses.

🔒 Maximum Security

Heavy-duty steel construction means thieves don’t stand a chance. Solid steel walls and doors that lock up tight ensure only authorized personnel can access your contents. Unlike wooden or plastic storage options, steel containers cannot be cut, pried open, or penetrated by pests — not even rodents can get inside.
🌧️ Weatherproof Protection

Steel storage containers are designed to withstand ocean voyages — meaning they’re built to handle any weather condition your job site encounters. Rain, snow, high winds, and temperature extremes won’t damage your stored materials, tools, or equipment. High humidity protection is critical when storing wood products, which is where steel decisively outperforms alternatives.
🚚 True Portability

Steel storage containers are easily transportable as a single unit by truck — making it simple and cost-effective to transfer them between job sites or reposition them on an existing site. Relocating your storage as the project evolves takes one truck and one driver. No unloading, no reassembly, no downtime.
💰 Excellent Value

Steel storage containers provide more security, more capacity, and more durability per dollar than any other portable storage option. Used containers are especially cost-effective — delivering full ISO-standard security and weatherproofing at a fraction of the cost of new units, with outstanding resale value when you’re done.
📐 Flexible Configuration

While many businesses use steel containers purely for storage, others convert them into mobile offices, tool rooms, secure receiving areas, or even workforce housing. The general utility of the ISO container model means you can adapt it to virtually any application — maximizing the return on your investment.
🏗️ Scales With Your Project

Need more capacity as your project grows? Add additional steel containers alongside existing ones. Need less? Return rented units or sell purchased units when you’re done. Steel containers offer a level of scalability that permanent storage structures simply cannot match — and at far lower cost.

Buy or Rent a Steel Storage Container?

Both options are available through our supplier network. Here’s a quick guide to choosing the right approach.

Consideration Buying Is Better When… Renting Is Better When…
Duration of need Ongoing or multi-project use Short-term or single project
Upfront cost You can invest in a permanent asset You want to minimize cash outlay
Future resale You want resale or trade-in value Return when done, no disposal needed
Flexibility Fixed, known storage requirement Needs may change — scale up/down

Not sure? Request quotes for both options and compare costs side by side.

Who Uses Steel Storage Containers?

Steel storage containers serve every industry and application that requires portable, secure, weatherproof storage.

Construction Job Sites

Secure storage for tools, materials, equipment, and supplies on active construction sites — protecting everything from theft, weather, and pests overnight and on weekends.
Commercial & Industrial

Overflow inventory storage, seasonal product warehousing, equipment staging areas, and secure receiving zones for manufacturing, retail, and distribution businesses.
Government & Military

Secure document storage, equipment depots, and field operation supply staging for government agencies, military contractors, and public infrastructure projects.
International Shipping

Full container load (FCL) international cargo delivery, bulk cargo shipping, and oversized or specialized goods transportation via sea freight worldwide.

Why Source Steel Containers Through US Construction Trailers?

More options, lower prices through competition, and the ability to pair containers with office trailers — all in one place.

Feature US Construction Trailers Container-Only Retailers Local Equipment Dealers
Multiple competing price quotes ✔ Up to 5 Free ✘ Fixed catalog price ✘ Single quote
Buy AND rent options ✔ Both Available ~ Usually sale only ~ Varies
Nationwide delivery — all 50 states ✔ All 50 States ~ Limited distribution areas ✘ Regional only
Pair with office trailers on same order ✔ One-Stop Solution ✘ Containers only ~ Varies
New AND used container options ✔ Both ~ Mostly new ~ Varies

Complete Your Job Site Setup

Pair your steel storage container with a mobile office trailer — one quote, one delivery, one complete job site solution.

Office Trailers For Sale

Buy new or used office trailers to pair with your storage container.

View Options →

Office Trailer Rentals

Rent a mobile office trailer alongside your storage container.

View Options →

New Construction Trailers

Brand-new jobsite office trailers for sale — all sizes and configurations.

View Options →

Used Construction Trailers

Pre-owned office trailers to bundle with your storage container order.

View Options →

Frequently Asked Questions — Steel Storage Containers

Everything you need to know before buying or renting a steel storage container.

How much does a steel storage container cost?
Purchase prices for steel storage containers range from approximately $1,500–$3,000 for a used 10-foot unit to $8,000–$14,000 for a new 40-foot high-cube container. Used containers typically cost 40–60% less than new equivalents while delivering the same ISO-standard security and weatherproofing. Rental rates run $75–$300 per month depending on size. The fastest way to get your exact price is to request free competing quotes — you’ll receive up to 5 bids from local suppliers.
What is a steel storage container (conex box)?
A steel storage container — also called a conex box, ISO container, or shipping container — is a standardized, heavy-gauge steel box used for storing or transporting goods. These containers were originally developed for international sea freight and are built to withstand extreme conditions. Standard dimensions are 8 feet wide by 8.5 feet tall (or 9.5 feet for high-cube units), with lengths of 10, 20, or 40 feet. On construction sites and job sites, they serve as secure, weatherproof, portable storage for tools, materials, and equipment.
What sizes of steel storage containers are available?
Steel storage containers are available in 10-foot, 20-foot, 40-foot standard, and 40-foot high-cube configurations as the most common sizes. Shorter specialty units (5-foot, 8-foot) are also available in some markets. The 20-foot standard is the most widely used size for job site storage. The 40-foot high-cube provides approximately 2,694 cubic feet of interior space — enough for the contents of a large household or substantial equipment inventory. Custom and specialty containers are also available through our supplier network.
Should I buy or rent a steel storage container?
Buying makes sense for ongoing storage needs, multi-project use, or businesses that want a permanent asset with resale value. A used 20-foot container purchased for $2,500–$4,500 can serve your business for years and then be sold when no longer needed. Renting makes sense for short-term or single-project storage where you want to avoid any asset management at the end. Monthly rental rates for a 20-foot container typically run $100–$200. If you’re unsure, we can quote both options simultaneously so you can compare total cost.
How are steel storage containers delivered?
Steel storage containers are transported by a specially equipped truck — typically a tilt-bed truck or a flatbed with a crane. The driver backs the trailer and tilts or lowers the container to the ground at your specified location. Delivery requires a flat, firm surface with enough access for the delivery truck to maneuver. Many suppliers can deliver to your job site within 24 hours of order confirmation, though lead times vary by location and availability. Delivery is always included in the quoted price — there are no surprise transportation fees.
What is the difference between a new and a used steel storage container?
New steel storage containers (often called “one-trip” containers) have been used only once for a single international shipping voyage and arrive in excellent cosmetic condition with minimal wear. Used containers have had multiple prior deployments and may show cosmetic signs of use (surface rust, dents, scratches) but are structurally sound, watertight, and fully functional for storage. Used containers typically cost 40–60% less than new equivalents. For most job site storage applications, a quality used container delivers identical security and weatherproofing at a significantly lower price.
Do steel storage containers keep out pests and moisture?
Yes — this is one of the most important advantages of steel over wooden or plastic storage alternatives. Unlike wood or plastic, steel containers cannot be penetrated by rodents or insects. A properly sealed steel container also provides excellent protection against high humidity, preventing moisture damage to stored wood products, paper materials, electronics, and other sensitive items. Wind and watertight (WWT) grade containers provide an extra level of protection and are recommended when moisture protection is a priority.
Can steel storage containers be used as mobile offices?
Yes. Steel shipping containers can be modified and converted into mobile offices, tool rooms, secure receiving areas, and even workforce housing. Common modifications include adding doors and windows, electrical wiring, insulation, HVAC, and interior finishes. Container offices are typically more durable and secure than standard office trailers, though they require more lead time for conversion. If you need both a storage container and a mobile office, we can source both through one quote request — pairing an office trailer alongside a storage container for a complete job site solution. See our mobile office trailers for rent options.
Do I need a permit to place a steel storage container on a job site?
Permit requirements vary by city, county, and state. On most active permitted construction sites, a temporary storage container falls under the main building permit and does not require a separate permit. However, some municipalities require a temporary structure or accessory structure permit. Residential properties placing storage containers typically do require a permit in most jurisdictions. Our supplier partners are familiar with local requirements in their service areas and can provide guidance. Always confirm with your local building or code enforcement office before placement.

Get the Lowest Price on Steel Storage Containers Now

Complete our 30-second form and receive up to 5 free competing quotes from verified suppliers who deliver to your site. New or used, buy or rent, 10-foot to 40-foot — we’ll find the right steel container at the right price for your project.

Get My Free Container Quotes Now

✔ Free    ✔ No obligation    ✔ Up to 5 competing bids    ✔ 24-hour delivery available    ✔ All 50 states


Steel Storage Containers