Step By Step: Joining Two 40FT Shipping Containers Together!

Ever thought about turning two 40-foot shipping containers into one spacious 16-foot-wide envelope perfect for a home gym, shop, warehouse, or off-grid shelter? We have, twice! , In this video we walk you through the entire build process using our fully redesigned, DIY-friendly Weldless Double Wide Kit. This isn’t just an updated version—it’s our most refined, code-conscious system to date. Engineered for easy bolt-together installation and stronger performance, it’s built for DIYers, builders, and container pros alike. Why This Kit? Packs down to a single 4 ft pallet for easy, affordable shipping Stronger, straighter 4 ft structural headers Perfect hole alignment = faster, easier install LVL-compatible for extra strength Flush-fit connectors and ridge cap for a clean, finish-ready interior What You'll Learn in This Build: How to choose the right containers for a double-wide How to prep, align, and connect two containers Best tools & techniques for cutting and reinforcing sidewalls How to strengthen floors between containers How spray foam + steel or composite framing assists with finishing *Our Weldless Double-Wide Header Kit is designed for a fully bolt-together upper structural connection-no welding required. However, joining the container floors may require welding or other reinforcement methods, depending on your local building codes and intended application. CHECK OUT THE DW KIT HERE: containermodificationworld.com/40ft-double-wide-kit 20’ DW KIT COMING SOON! Like, comment, and subscribe for more in-depth container builds and DIY kits! Hope Ya Learned Somethin' TIMESTAMPS: 0:00 - Intro: DIY Double-Wide Shipping Container Kit 0:31 - Choosing the Right Shipping Containers 1:05 - Prepping Containers for Modification 2:08 - Underside Insulation Prep 2:40 - Assembling the Double-Wide Header Kit 3:21 - Installing the Double-Wide Header Kit 6:30 - Overview of Double Wide Kit Components 7:17 - Cutting Sidewalls Safely (Best Tools + Tips) 7:55 - Dropping Sidewalls and Joining Containers 9:40 - Installing Ridge Cap and End Caps 12:39 - Pitched Roof Option 13:06 - Framing and Insulation Prep (Spray Foam Ready) 14:05 - Pro Tips: Residential Framing, Thermal Bridging, Spray Foam 15:26 - Interior Finishing & Tour 16:00 - Final Construction Summary and Takeaways 17:00 - Subscribe + Learn More at TCG.ca Other Featured Products: Wall & Door Flashing Kits: Wall Flashing Kit: https://containermodificationworld.ca... Door Flashing Kit: https://containermodificationworld.co... DOORS: 36" Man Door: https://containermodificationworld.co... FRAMING: Steel Stud Framing Brackets: https://containermodificationworld.co... Composite Framing Brackets: https://containermodificationworld.co... Social Media: TCG Official Site: https://thecontainerguy.ca Instagram: TheContainerGuyTV & ContainerModificationWorld TikTok : TheContainerGuy Facebook: The Container Guy SHOP OUR OTHER PRODUCTS ON AMAZON (USA & Canada) Patio Door Framing Kit: Amazon: https://amzn.to/4h7iB7M Shopify: https://containermodificationworld.co... FRAMING BRACKETS: Interior Wood Stud Framing Brackets Amazon: https://amzn.to/46CbaAB Shopify: https://containermodificationworld.co... Steel Stud Framing Kit for 20' Shipping Containers - Amazon: https://amzn.to/3Q3iGy4 Shopify: https://containermodificationworld.co... CONTAINER PADS: Amazon: https://amzn.to/4hu0lqa Shopify: https://containermodificationworld.ca... WOOD STUD FRAMING BRACKETS: Exterior Wood Framing Bracket Kit – 2 Way Upper Decker Brackets – 20FT Kit Amazon: https://amzn.to/48GlYzG Shopify: https://containermodificationworld.co... Exterior Wood Framing Bracket Kit – 2 Way Upper Decker Brackets – 40FT kit Amazon: https://amzn.to/46Bvt1c Shopify: https://containermodificationworld.co... CONTAINER SECURITY: Lock Box w/ CMW 80mm Lock: Amazon: https://amzn.to/3LRgUhU Shopify: https://containermodificationworld.co... Universal Lock Box for Left and Right Hand Doors Amazon: https://amzn.to/3ZIMIv8 Shopify: https://containermodificationworld.co... VENTILATION: Big Air Passive Vents: Amazon: https://amzn.to/48I9tDx Shopify: https://containermodificationworld.co... WINDOW FRAMING KITS: 42" x 30" Side Wall & 48" x 30" End Wall Amazon: https://amzn.to/45jXrxs Shopify: https://containermodificationworld.co... https://containermodificationworld.co... Channing's Tool Belt: https://holstery.com **As an Amazon Associate, we earn from qualifying purchases. -------------------