You need workspace fast, but a new trailer costs more than your budget allows. The good news is that used portable office trailers are available for a fraction of the price. They are a smart option for job sites, schools, or any temporary setup.
Buying used means you can get a solid, functional office for $8,000 to $50,000 instead of paying $22,000 or more for new. You just need to know what to look for and where to find the best deals.
How to find affordable used construction trailers for sale
Major suppliers like WillScot, United Rentals, and Mobile Modular sell pre-owned units directly from their fleets. You can also check online marketplaces like GovPlanet and eBay, where auctions often have used job site trailers at great prices.
Prices depend on size, condition, and features. A basic 8×24 trailer might cost $8,000, while a larger 12×60 with restrooms and multiple rooms can reach $50,000. Always inspect the unit in person or hire an inspector to check for water damage, rust, and electrical issues.
| Product | Average Price ($) | Highlight |
| Basic Job Site Trailer (8’x20′) | 8,000 – 12,000 | Compact, essential for small sites. |
| Standard Office Trailer (8’x24′) | 10,000 – 15,000 | Common size, good for 1-2 people. |
| Refurbished Office Container (20′) | 12,000 – 18,000 | Durable steel, secure, good alternative. |
| Double Office Trailer (10’x40′) | 15,000 – 22,000 | More space, separate areas possible. |
| Used Construction Trailer (8’x32′) | 16,000 – 25,000 | Often includes basic amenities. |
| Office Trailer with Restroom (8’x36′) | 18,000 – 28,000 | Adds convenience for longer stays. |
| Pre-Owned Mobile Office (12’x50′) | 20,000 – 35,000 | Spacious, suitable for teams. |
| Used Modular Building (Multi-room) | 25,000 – 40,000 | Configurable, can be expanded. |
| Second-Hand Office Trailer (12’x60′) | 30,000 – 45,000 | Large, ideal for project management hubs. |
| Refurbished Double-Wide Office Trailer | 40,000 – 50,000+ | Maximum space and features. |
WHAT REALLY WORKS
Used portable office trailers offer significant savings over new. Prices vary based on size, condition, and features. Expect to pay more for units with restrooms or multiple rooms.
Inspect for structural integrity, water damage, and HVAC functionality. A solid foundation is crucial for stability and longevity. Check electrical systems meet your needs, usually 220-volt service.
Used Portable Office Trailers: Key Benefits
Choosing the right used portable office trailer depends on your project’s scale and duration. Consider size, layout, and essential amenities like restrooms or AC. Always factor in delivery and setup costs. Look for reputable dealers with good reviews.
1. Basic Job Site Trailer (8’x20′)
This is the most affordable option. It provides essential shelter and workspace for one or two people. It’s a simple, no-frills solution.
Average Price: $8,000 – $12,000.
Practical Tip: Ideal for very small projects or temporary needs where space is limited.
2. Standard Office Trailer (8’x24′)
A common choice, this size offers a bit more room. It’s suitable for small teams or as a site supervisor’s office.
Average Price: $10,000 – $15,000.
Practical Tip: A good balance of cost and space for many typical construction sites.
3. Refurbished Office Container (20′)
These are converted steel shipping containers. They are very durable and secure, offering a different kind of used trailer option.
Average Price: $12,000 – $18,000.
Practical Tip: Excellent if security is a top concern and you prefer a robust, single-room structure.
4. Double Office Trailer (10’x40′)
This offers significantly more floor space. You can often divide it into separate offices or work areas.
Average Price: $15,000 – $22,000.
Practical Tip: Useful for projects requiring distinct administrative and operational spaces.
5. Used Construction Trailer (8’x32′)
These units are often pre-equipped for job sites. They might include features like built-in desks or storage.
Average Price: $16,000 – $25,000.
Practical Tip: Look for models that already have features you need to save on customization.
6. Office Trailer with Restroom (8’x36′)
Adding a restroom increases comfort and reduces the need for external facilities. This is a practical upgrade.
Average Price: $18,000 – $28,000.
Practical Tip: Essential for longer projects or sites far from existing restrooms.
7. Pre-Owned Mobile Office (12’x50′)
This larger unit provides ample space for growing teams or complex operations. It feels more like a permanent office.
Average Price: $20,000 – $35,000.
Practical Tip: Consider this if you need a comfortable, spacious environment for multiple staff members.
8. Used Modular Building (Multi-room)
These offer flexible layouts and can sometimes be connected. They are built for more permanent or complex needs.
Average Price: $25,000 – $40,000.
Practical Tip: A good option if you anticipate needing more rooms or a more customized setup.
9. Second-Hand Office Trailer (12’x60′)
This is one of the largest standard trailer sizes. It can accommodate a large project management team and extensive equipment.
Average Price: $30,000 – $45,000.
Practical Tip: Best for major construction projects or as a central command center.
10. Refurbished Double-Wide Office Trailer
These are essentially two trailers joined together. They offer the most space and can be configured with multiple offices, restrooms, and kitchens.
Average Price: $40,000 – $50,000+.
Practical Tip: The ultimate solution for large-scale operations requiring extensive on-site facilities.
WHICH ONE TO BUY TODAY? (VERDICT)
For the best value, the ‘Standard Office Trailer (8’x24′)’ or the ‘Office Trailer with Restroom (8’x36′)’ often hit the sweet spot. They balance cost, space, and essential amenities for most common project needs.
The best investment depends on your long-term plans. A ‘Refurbished Office Container’ offers durability, while larger units like the ‘Second-Hand Office Trailer (12’x60′)’ provide maximum utility for significant projects. Always compare detailed specs and delivery options.
Your First Week With a Used Office Trailer
What to Inspect Immediately
- Check for water damage. Look for soft spots on the floor or ceiling. Mold can ruin the trailer fast.
- Test all electrical outlets. Bring a simple plug-in tester. Faulty wiring is a common hidden issue.
- Inspect the roof seals. Cracks or gaps let in rain. A tube of sealant now can save thousands later.
Common Mistakes to Avoid
- Don’t skip the foundation. Setting the trailer on uneven ground warps the frame. Always use leveling blocks or a concrete pad.
- Don’t ignore the HVAC. Run the AC and heater for an hour. A failing unit costs $2,000+ to replace.
- Don’t forget permits. Many towns require a temporary building permit. Check before you place the trailer.
Step-by-Step Setup
- Level the trailer. Use a carpenter’s level on the floor. Adjust the landing gear or blocks until it’s flat.
- Connect power. Hire a licensed electrician for the 220-volt hookup. DIY mistakes can void your insurance.
- Secure the unit. Anchor it to the ground with straps or tie-downs. High winds can tip an unsecured trailer.
Frequently Asked Questions
Can I move the trailer myself?
Moving a used office trailer requires a specialized flatbed truck or a towing service. Most units weigh 8,000 to 15,000 pounds, so a standard pickup won’t work.
How long do used trailers last?
With proper maintenance, a used portable office trailer can last 20 to 30 years. The steel frame and aluminum siding are very durable if kept dry.
Is financing available for used units?
Yes, many dealers offer financing for used trailers with terms up to 7 years. Rates are typically higher than for new units, so shop around.
Choosing a used portable office trailer is a smart financial move when you inspect it carefully. You get the same workspace for a fraction of the price of new.
Now measure your site and call three dealers for quotes. Compare prices and warranty options before you commit.
In a few weeks, you’ll be working from your own mobile office, customized exactly how you want it. That’s the real reward of a smart purchase.
