The Complete Guide to Buying a Shipping Container
Everything you need to know before buying a used shipping container. Size comparison, condition grades, pricing, delivery, and conversion tips.
Introduction
Buying a shipping container is one of the smartest moves you can make for your next building project. Whether you're planning a tiny home, backyard office, workshop, or storage solution, a used shipping container gives you a weather-resistant steel shell at a fraction of conventional construction costs.
This guide walks you through everything you need to know: which size fits your plan, how condition grades affect price and prep work, what delivery looks like, and how to navigate permits in the Tampa Bay area. By the end, you'll be ready to make a confident purchase.
Choosing the Right Size
Shipping containers come in four standard configurations. The right choice depends on your available space, intended use, and whether ceiling height is a priority for your build.
| Specification | 20ft | 40ft | 20ft HC | 40ft HC |
|---|---|---|---|---|
| Exterior Length | 20' 0" | 40' 0" | 20' 0" | 40' 0" |
| Exterior Width | 8' 0" | 8' 0" | 8' 0" | 8' 0" |
| Exterior Height | 8' 6" | 8' 6" | 9' 6" | 9' 6" |
| Interior Length | 19' 4" | 39' 5" | 19' 4" | 39' 5" |
| Interior Width | 7' 8" | 7' 8" | 7' 8" | 7' 8" |
| Interior Height | 7' 10" | 7' 10" | 8' 10" | 8' 10" |
| Door Opening (W) | 7' 8" | 7' 8" | 7' 8" | 7' 8" |
| Door Opening (H) | 7' 6" | 7' 6" | 8' 6" | 8' 6" |
| Floor Area | 150 sq ft | 300 sq ft | 150 sq ft | 300 sq ft |
| Volume | 1,172 cu ft | 2,390 cu ft | 1,360 cu ft | 2,700 cu ft |
| Tare Weight | 4,916 lbs | 8,160 lbs | 5,071 lbs | 8,598 lbs |
| Ideal For | Home offices, Studios, Guest rooms, Pool houses, Storage | Tiny homes, ADUs, Workshops, Retail spaces, Large storage | Lofted bedrooms, Offices with mezzanine, Art studios, Music rooms | Full-size homes, Multi-room ADUs, Commercial spaces, Event venues, Vacation rentals |
Pro tip: If you're converting your container into a living space, choose a High Cube. The extra foot of ceiling height makes a noticeable difference once you add insulation and finishing materials.
Understanding Container Conditions
Used containers are graded by structural integrity and cosmetic appearance. The condition grade has a direct impact on price, preparation work, and suitability for different projects.
One-Trip (Like New)
Age: 1-2 years
One-trip containers have made a single voyage from the factory to the US. They arrive in near-factory condition with minimal surface wear, intact paint, and clean interiors. The go-to choice when aesthetics matter from day one.
Key Features
- Original paint in excellent condition
- No dents or significant surface damage
- Clean, dry interior — ready for immediate use
- Fully functional doors and locking mechanisms
- Factory-applied anti-corrosion coating intact
Best For
- Living spaces where interior finish matters
- Client-facing commercial builds
- Projects where minimal prep is a priority
Cargo Worthy (CW)
Age: 5-10 years
Cargo Worthy containers are certified structurally sound and watertight by a licensed surveyor. They may show cosmetic wear — surface rust, minor dents, scuffed paint — but every panel, rail, and seal meets international shipping standards.
Key Features
- Structurally sound and watertight
- Certified by licensed surveyor
- Surface rust and cosmetic wear expected
- Fully operational doors and hardware
- Excellent value for conversion projects
Best For
- Residential conversions and ADUs
- Workshops and hobby spaces
- Rental units and Airbnb builds
Wind & Water Tight (WWT)
Age: 10-15 years
Wind & Water Tight containers keep out the elements but show visible signs of extended use. Expect patched areas, heavier surface rust, and cosmetic dents. Structurally reliable, they are a smart choice when the exterior will be clad or painted as part of the build.
Key Features
- Sealed against wind and rain
- Heavier cosmetic wear — rust patches, dents
- May have minor floor repairs
- Doors functional but may need adjustment
- Significant cost savings over newer grades
Best For
- Builds with exterior cladding planned
- Storage and workshop structures
- Budget-conscious residential projects
As-Is
Age: 15+ years
As-Is containers are retired shipping units sold in their current state. They may have holes, heavy rust, damaged flooring, or door issues. Priced at the lowest tier, they are best suited for experienced builders who plan significant structural and cosmetic work.
Key Features
- Lowest price point available
- May have holes, heavy rust, or floor damage
- Doors may need repair or replacement
- Sold without warranty or certification
- Ideal for experienced builders only
Best For
- Experienced DIY builders
- Non-habitable storage
- Art installations and creative projects
Pricing Guide
Container prices depend on size and condition. Below is our current pricing matrix. All prices are for the container only and do not include delivery.
| Size / Condition | One-Trip | Cargo Worthy | Wind & Water Tight | As-Is |
|---|---|---|---|---|
| 20ft Standard | $3,200 | $2,400 | $1,800 | $1,200 |
| 40ft Standard | $4,500 | $3,200 | $2,500 | $1,800 |
| 20ft High Cube | $3,500 | $2,700 | $2,000 | $1,400 |
| 40ft High Cube | $4,800 | $3,500 | $2,800 | $2,000 |
Prices are subject to change based on availability. Contact us for a current quote.
Ready to See Exact Pricing?
Tell us your project details and we'll provide a complete quote including delivery.
Get a Free QuoteDelivery Process
Containers are delivered on a tilt-bed truck. The driver tilts the trailer and the container slides off onto your prepared surface. Here's what to expect:
Order Confirmed
Once payment is received, your container is reserved and delivery is scheduled.
Delivery Day
The driver arrives with a tilt-bed truck and positions the container on your site. Typical turnaround is 3-7 business days.
Final Placement
The container slides off the truck onto your prepared foundation. Inspect it on the spot before the driver leaves.
Delivery Pricing
| Distance | Rate | Label |
|---|---|---|
| Up to 25 miles | $0/mile | Local delivery |
| Up to 50 miles | $4.5/mile | Standard delivery |
| Up to 100 miles | $5/mile | Extended delivery |
| Up to 200 miles | $5.5/mile | Long-distance delivery |
| Up to 500 miles | $6/mile | Long-distance delivery |
Base fee: $150. Maximum delivery distance: 500 miles. Contact us for a custom delivery quote.
Site Preparation
Proper site preparation ensures a smooth delivery and a solid foundation for your project. Here's a checklist of what to have ready before your container arrives.
Conversion Basics
Turning a steel box into a comfortable living or working space involves several key steps. Here is a high-level overview of the conversion process.
1. Planning and Design
Sketch your floor plan, decide on window and door placements, and plan your electrical and plumbing runs. Many builders hire an architect experienced with container structures.
2. Structural Modifications
Cut openings for windows and doors using a plasma cutter or angle grinder. Reinforce openings with steel framing. Containers are strongest at the corners and along the top and bottom rails.
3. Insulation
Closed-cell spray foam is the most popular choice for Tampa's climate. It provides both thermal insulation and a vapor barrier. Budget around $1.50-$2.50 per square foot.
4. Electrical and Plumbing
Run wiring and pipes after insulation but before wall finishing. Hire licensed professionals for this stage to pass inspection.
5. Interior Finishing
Install drywall or shiplap, flooring, cabinetry, and fixtures. This is where your container starts feeling like a real home or office.
6. Exterior Treatment
Apply rust-inhibiting primer, paint or cladding. Consider adding a roof overhang for rain protection and aesthetic appeal.
Not Sure Where to Start?
Our team can help you choose the right container for your conversion project.
Talk to an ExpertPermits & Regulations
Building with shipping containers in the Tampa Bay area requires navigating local building codes and zoning regulations. Here is what you should know.
Do I Need a Permit?
In most Tampa Bay jurisdictions, yes. Any structure intended for habitation, office use, or permanent placement typically requires a building permit. Even storage-only containers may need zoning approval depending on your lot.
Zoning Considerations
Check your parcel's zoning designation. Residential zones often allow ADUs (Accessory Dwelling Units) but may have setback requirements, height limits, and lot coverage maximums. Hillsborough County, Pinellas County, and the City of Tampa each have their own regulations.
Florida Building Code
Container structures must meet the Florida Building Code, including wind load requirements (critical in hurricane country), energy efficiency standards, and accessibility provisions if applicable. An engineer's stamp is usually required for structural plans.
HOA Restrictions
If you live in an HOA-governed community, review your covenants before purchasing. Some HOAs restrict container structures or require architectural review board approval.
Disclaimer: This information is for general guidance only. Regulations change frequently. Always confirm requirements with your local building department before starting your project.
Frequently Asked Questions
With proper maintenance, a shipping container can last 25-30 years or more. Containers used in construction projects often outlast that because they're stationary, protected from the saltwater environment of ocean shipping, and receive exterior treatments that prevent corrosion.
Yes. Shipping containers are designed to be stacked up to nine units high when fully loaded. For residential builds, two-story configurations are common and structurally straightforward. You'll need engineered plans and appropriate foundation design.
Closed-cell spray foam is the top choice for hot, humid climates like Tampa. It provides high R-value per inch, acts as a vapor barrier, and conforms to the corrugated walls of the container. Two inches of closed-cell foam provides roughly R-13, which meets most energy code requirements.
A basic conversion (insulation, electrical, plumbing, and simple finishes) typically runs $15,000 - $35,000 on top of the container cost. High-end conversions with custom interiors, HVAC systems, and premium finishes can reach $50,000 - $80,000+. The container itself is often the smallest line item in the budget.
Yes, some form of foundation is always recommended. Options range from a simple compacted gravel pad (suitable for storage) to concrete piers or a full concrete slab (required for habitable structures). The foundation must be level and capable of supporting the container's weight plus any interior build-out.
Yes. We accept cash, check, wire transfer, and credit card payments. Financing options are also available. Contact our team for details on payment plans and terms.
Ready to Get Started?
Whether you know exactly what you need or you're still exploring, our team is ready to help you find the right container at the right price.