20ft Standard Pre-Owned Steel Container
From $1,200 / unit
Weatherproof and cost-effective —
The 20ft Standard WWT container delivers a fully sealed, weatherproof steel shell at one of the lowest price points in our lineup. Wind and water tight means rain, wind, and pests stay out — exactly what you need for a workshop, secure storage unit, or budget-conscious conversion project.
A smart pick for maker spaces, tool sheds, backyard workshops, and seasonal storage across the St. Petersburg area. Visible service wear is part of the deal — surface rust, dents, and patina tell the story of a well-traveled container — but the structural bones remain solid. Doors latch properly and seals hold tight.
For hands-on builders who plan to insulate and finish the interior anyway, the WWT grade offers the most practical entry point. Every dollar you save on the shell is a dollar you can redirect toward insulation, electrical, and the finishes that actually matter for your finished space.
Technical Details
~150 sq ft
of usable floor space
8'6" Tall
standard height profile
4,916 lbs
tare weight
Modification Advantages for Building Projects
The 20ft Standard ranks among the most versatile containers for conversion work. Here is what makes it a preferred starting point for builders and property owners:
- Roughly 150 sq ft of habitable floor area — room for a complete one-bedroom layout including kitchen, bathroom, and lounge
- 7'10" raw interior ceiling — standard height suitable for workshops, storage, and office conversions
- Weathering steel (Corten) shell — self-protecting steel that forms a rust-resistant patina, engineered to endure 25-50+ years along Florida's Gulf Coast
- Works with conventional framing — inner measurements support standard 2x4 stud walls paired with closed-cell foam, so any licensed contractor can handle the job
- Full-width rear doors — keep them for a statement entrance, swap them for floor-to-ceiling glazing, or seal and reframe for additional wall area
- 28mm marine plywood subfloor — delivers a flat, sturdy base ready to accept any final flooring finish
- Modular and stackable — arrange units side-by-side or on two levels to form multi-room or two-story configurations
Did You Know?
Converting a 20ft Standard typically runs 40-60% below the cost of conventional stick-frame construction for equivalent square footage. Across St. Petersburg, property owners are turning to container-based ADUs (Accessory Dwelling Units) to earn rental income or provide housing for family.
Florida has become increasingly ADU-friendly, with new legislation making it easier to add a container-based dwelling to your property.
Understanding the Wind & Water Tight Classification
Wind & Water Tight (WWT) containers are retired ocean freight units that remain fully sealed against the elements. They no longer carry CSC certification for international shipping, but they keep rain, wind, and pests out reliably — exactly what most building and storage projects require.
Expect visible signs of service life: surface rust, dents, scratches, and general patina. The structural bones — corner posts, floor crossmembers, and roof bows — are intact and solid. Doors open and close properly and seals are functional.
WWT is the sweet spot for budget-conscious builders who plan to insulate, frame, and clad the interior anyway. Cosmetic imperfections disappear behind finished walls, making the lower price point a smart investment for workshops, storage buildings, and value-oriented living spaces.
Wind & Water Tight Grade Includes:
- Sealed against wind & rain
- Structural frame intact
- Functional door seals
- Solid floor condition
- Corner castings intact
- Secure locking hardware
Sealed against wind and rain but no longer certified for ocean freight. Visible signs of service life — surface rust, dents, patina. Solid choice for storage, workshops, and budget-conscious builds.
Common Build Applications
St. Petersburg owners use the 20ft Standard for these projects
Compact Dwelling
Complete one-bedroom layout with cooking, bathing, and living zones
Accessory Unit / In-Law Suite
Yard-based living quarters for relatives or rental revenue
Private Home Office
Dedicated workspace separated from your main residence
Maker Studio
Steel-enclosed space for carpentry, crafts, or hands-on hobbies
Short-Term Rental
Eye-catching getaway unit with contemporary, photo-ready design
Delivery Information
St. Petersburg & Tampa Bay Delivery
- Typical delivery: 3-7 business days from order confirmation
- Method: Tilt-bed truck — container slides directly onto your prepared site
- Site requirements: Flat, level surface with clearance for an 18-wheel truck to maneuver
- Service area: St. Petersburg, Tampa, Clearwater, Pinellas County, Hillsborough County, Largo, Gulfport, Treasure Island, Pinellas …
- Delivery cost: Varies by distance — included in your free quote
- Scheduling: We coordinate a delivery window that works for you
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