Container Basics
Sizes, sourcing, and the condition grades that decide what you pay.
Standard Sizes
20-foot: 160 sq ft interior. Good for studios, offices, guest houses. ~$1,500–3,000 used. 40-foot: 320 sq ft interior. One-bedroom home potential. ~$2,000–5,000 used. 40-foot High Cube: 9.5 ft ceiling (1 ft taller). Recommended for homes.
Where to Buy
Container depots near ports: Houston, LA, Newark, Savannah, Seattle. Online: Container Alliance, BoxHub, PODS. Inspect in person when possible. Look for: minimal rust, straight frame rails, working doors, no holes.
Condition Grades
One-trip: Nearly new, used once from Asia. Best for homes ($3,000–5,000). Cargo-worthy (CW): Good condition, some wear ($2,000–3,500). Wind/Water Tight (WWT): Keeps weather out but cosmetic damage ($1,500–2,500). As-Is: Cheapest, may need work ($800–1,500).
Building a Container Home
Foundation, envelope, systems, and the paperwork that trips people up.
Foundation Options
Concrete pier: Cheapest, $500–2,000. Containers sit on concrete piers at corners. Slab: $3,000–8,000. Permanent, level. Strip foundation: $2,000–5,000. Walls under container edges. Screw piles: $3,000–6,000. Minimal ground disturbance.
Insulation
Spray foam (closed-cell): Best for containers. R-6.5 per inch. Creates vapor barrier. $1–2/sq ft. Rigid foam board: R-5 per inch. Cheaper but needs vapor barrier. Rockwool: Fire-resistant. Good for interior walls. Never use fiberglass in containers (moisture issues).
Cost Breakdown
Container: $2,000–5,000. Foundation: $2,000–8,000. Insulation: $2,000–5,000. Electrical: $3,000–8,000. Plumbing: $3,000–10,000. Interior finish: $5,000–15,000. Windows/doors (cut-outs): $2,000–5,000. Total basic 1-container home: $20,000–50,000.
Zoning & Permits
This is the hardest part. Many jurisdictions don't have container home codes. You'll need: building permit, zoning approval (residential classification), and possibly a variance. Rural/county land is usually easier than city lots. Check BEFORE you buy land.
Floor Plans
From a single 20-foot studio to a stacked family home in L, T, or U.
Studio
160 sq ft. Kitchenette, bathroom, sleeping area. Perfect for guest house, Airbnb, or home office. Like a tiny house but stronger and cheaper.
One Bedroom
320 sq ft. Full kitchen, bathroom, bedroom, and living area. Comfortable for one person or a couple. The most popular single-container layout.
Two Bedroom
640 sq ft. Remove interior walls where containers meet. Two bedrooms, full kitchen, living room, bathroom. Feels like a real house.
Family Home
960–1,280 sq ft. Stack and arrange in L, T, or U shapes. Multiple bedrooms, open living areas, decks on top of lower containers. Architect recommended at this scale.
Go Deeper
Watch real builds and check the references behind the numbers.
Build Videos
20 curated container-home architecture videos — recent standouts first, then the most-watched of all time. Real start-to-finish builds, tours, and the honest pros-and-cons takes. Open the reel →
Sources
Hand-picked, independent sites worth your time on container builds, design, and off-grid energy — from Container Home Hub to Dwell and EnergySage. See the list →