12ft x 8ft Custom Office / Garden Room – Open Plan Portable Building
The 12ft x 8ft Custom Office / Garden Room is a compact, modern, and fully refurbished portable building designed for home offices, studios, or small business use.
Built from durable corrugated steel and finished in Jet Black, this open-plan cabin combines strength, style, and functionality — ideal for both professional and residential environments.
This premium refurbished unit features a 2.1 m × 2.2 m full-height picture window in an anthracite frame, flooding the interior with natural light and creating a bright, open atmosphere.
With a wall-mounted heater, Rustic Oak vinyl flooring, LED lighting, and a complete electrical system, it’s ready to use upon delivery.
Key Features
- Condition: Fully Refurbished – Excellent internal and external finish.
- Size: 12 ft (L) × 8 ft (W) – Compact open-plan layout.
- Construction: Steel corrugated shell for long-term durability and security.
- Exterior Finish: Jet Black industrial-grade paint for a clean, modern look.
- Full-Height Picture Window:
- 2.1 m × 2.2 m anthracite-framed toughened glass window for panoramic views and natural light.
- Heating: Wall-mounted electric heater for comfort year-round.
- Flooring: Rustic Oak vinyl plank flooring – stylish, durable, and easy to maintain.
- Lighting: Two single LED light tubes on a wall switch.
- Power Supply:
- Two double electrical sockets.
- Internal consumer unit with external isolator and 32-amp single-phase commando connection.
- Door: One steel anti-vandal access door with locking keys.
Specifications
| Specification | Details |
|---|---|
| External Length | 12 ft (3.66 m) |
| External Width | 8 ft (2.44 m) |
| External Height | 8 ft 6 in (2.59 m) |
| Construction | Steel Corrugated Anti-Vandal |
| Exterior Colour | Jet Black |
| Window | 2.1 m × 2.2 m Anthracite Frame, Toughened Glass |
| Door | Steel Anti-Vandal with Locking Keys |
| Flooring | Rustic Oak Vinyl |
| Lighting | 2 × LED Light Tubes |
| Sockets | 2 × Double Outlets |
| Electrical | 32 A Single-Phase Supply with Isolator |
| Heating | Wall-Mounted Electric Heater |
| Lead Time | 6 Weeks from Order |
| Delivery | Nationwide Delivery Available |
Applications
- Home office or garden studio
- Creative or design workspace
- Small business office or salon
- Temporary site cabin or sales suite
- Hobby or relaxation space
Benefits
- Bright & Inviting Interior: Full-height window maximizes natural light and views.
- Compact & Practical: Ideal for limited spaces while maintaining full functionality.
- Comfortable All Year: Insulated structure with built-in electric heating.
- Secure & Durable: Anti-vandal steel door and construction.
- Ready to Connect: Electrical and isolator system pre-installed for fast setup.
Why Choose the 12ft x 8ft Custom Office / Garden Room – Open Plan Portable Building?
This portable garden office combines high-end aesthetics with industrial-grade strength.
Whether used for remote work, creative projects, or personal retreat, this open-plan container room provides comfort, natural light, and long-term value in a compact, mobile form.
Nia Johnson (verified owner) –
Fast quote response. I had a detailed quote in my inbox within an hour of my inquiry.
Lillian Gra (verified owner) –
Started a container garden! Bought a used one, drilled holes for drainage, and now have raised beds. Creative uses are endless!
Viktor Lund (verified owner) –
The lock-rods were a little stiff. A bit of WD-40 fixed them right up. Probably from sitting in a yard.
Daniel Kim (verified owner) –
Wind and watertight, just as promised. We’ve had torrential rain and high winds, and the inside is bone dry.
Juniper Lee (verified owner) –
Fantastic customer service. Maria walked me through every step as a first-time buyer. Felt completely confident in my purchase. The container is now my perfect backyard workshop.
Connor MacLeod (verified owner) –
No leaks! After years of dealing with leaky sheds, this is a dream.
Idris Okoro (verified owner) –
Good value for money. There might be slightly cheaper options, but the quality and peace of mind here are worth it.
Alistair Finch (verified owner) –
Refrigerated container for my farm stand. Works perfectly! It was delivered with a full service history. Colli Trans made a complex purchase simple.
Naomi Kim (verified owner) –
Very good overall. The container itself is great quality. Delivery was a few days later than initially hoped, but the communication was good so it wasn’t a big issue. Four stars.
Daniel Kim (verified owner) –
Modification wasn’t perfect. We ordered a container with a added man-door. The door works, but the finish around the weld is a bit rough. It’s on the back so it’s not a huge deal, but for the price of the mod, I expected cleaner work.
Victor Sokolov (verified owner) –
Doors operate smoothly. Something you don’t think about until you get a bad one. These are well-maintained.
Lawrence Middleton (verified owner) –
Bought one for my son’s startup. He’s using it for his automotive parts business. It was the perfect starter solution.
Rajesh Yadav (verified owner) –
Great product, minor delivery hiccup. The container is perfect for our needs. The driver was great, but the delivery window was a bit wide (8am-5pm). Would still recommend.
Fiona O’Rourke (verified owner) –
Used it as a temporary garage. Worked great while I rebuilt my old shed.
Idris Okoro (verified owner) –
Communication could be improved. It was hard to get a straight answer on the exact delivery date. When it did arrive, it was correct, but the lack of updates was stressful.
Hazel Fletcher (verified owner) –
They answer their phones! So many companies don’t. A real person always picks up.
Priya Patel (verified owner) –
Great foundation for a tiny home. The structure is straight and true, making conversion much easier.
Clara Bennett (verified owner) –
Well-painted. The paint job is durable and looks professional.
Nathaniel Blackwood (verified owner) –
Okay, but had an issue. The container we received had a small leak around one of the corner castings that wasn’t apparent on delivery. Customer service was responsive and sent a repair crew out within a week to fix it. Problem was solved, but it was an inconvenience.
Isabella Moretti (verified owner) –
Customer for life. After this experience, I won’t go anywhere else.
Daniel Kim (verified owner) –
Perfect mobile office. We had it modified with insulation, power, and A/C. It’s now the best office on our construction site.
Leif Erikson (verified owner) –
Simple online process. I bought my container entirely online. It was as easy as buying a book.
David Chen (verified owner) –
Delivery was on time, but the driver was a bit rushed. He was efficient, but not as careful with my lawn as I would have liked. No major damage, though.
Liam O’Connell (verified owner) –
Perfect for storage, delivery was tricky. The container is great. My site access is difficult and it took the driver a couple of attempts to get it positioned. The team was patient, but it cost an extra hour of labor.
Matilda Scomidt (verified owner) –
Ventilated container for organic goods. Arrived in perfect working order. The ventilation system is crucial and works excellently.
Amelia Reed (verified owner) –
Slight price increase from quote to delivery. The initial quote was valid, but by the time I confirmed a week later, the transport costs had gone up slightly due to fuel prices. Understandable, but worth noting.
Sophie Baker (verified owner) –
Wish there were more photos online. The container is fine, but I would have liked to see photos of all four sides and the interior floor before purchasing.
Akio Tanaka (verified owner) –
Flawless delivery to a tricky site. My driveway is narrow and on a hill. The driver managed it with no issues. Very impressed.
Lillian Gra (verified owner) –
Peace of mind. Knowing my assets are secure in a Colli Trans container is priceless.
Caleb Vance (verified owner) –
Bought for a swimming pool equipment room. The side-door access is ideal. Keeps everything out of sight and protected from the elements.
Sofia Costa (verified owner) –
Modification wasn’t perfect. We ordered a container with a added man-door. The door works, but the finish around the weld is a bit rough. It’s on the back so it’s not a huge deal, but for the price of the mod, I expected cleaner work.
George Abbot (verified owner) –
Doors operate smoothly. Something you don’t think about until you get a bad one. These are well-maintained.
Connor MacLeod (verified owner) –
Excellent for equipment storage. Fits my tractor and all my attachments with room to spare. The double doors are a must.
Nikolai Ivanov (verified owner) –
Perfect for my new business! Bought a 20ft container to use as a storage unit for my landscaping company. The process was seamless from start to finish.
Sebastian Hart (verified owner) –
Logistical geniuses. Coordinated delivery across three states for multiple site deliveries. Flawless execution.
Isaac Goldstein (verified owner) –
Top-notch quality
Everett Sloan (verified owner) –
Used it as a stage for a music festival. Looked awesome and was super secure for gear overnight.
Ethan Hayes (verified owner) –
Good experience, would use again. Solid company, solid product. Nothing flashy, just does what it says on the tin.
Lila Moreau (verified owner) –
Easy to customize. Hired a local welder to add windows and a door. He commented on the good quality of the steel.
Beatrice York (verified owner) –
Reliable. The container arrived exactly when they said it would.
Sasha Popo (verified owner) –
Wind and watertight, just as promised. We’ve had torrential rain and high winds, and the inside is bone dry.
Alistair Grant (verified owner) –
Well-painted. The paint job is durable and looks professional.
Victor Sokolov (verified owner) –
Top-notch quality
Aisha Bello (verified owner) –
Exactly as described. Needed a reliable used container. This one was spotless, no dents, and doors sealed perfectly. Great price for the quality.
Yuki Nakamura (verified owner) –
Wish there were more photos online. The container is fine, but I would have liked to see photos of all four sides and the interior floor before purchasing.
Frederick Sinclair (verified owner) –
Highly recommend for farmers. We use it for grain storage (with proper liners). It’s completely rodent-proof.
Yasmine Said (verified owner) –
Clear pricing. No haggling required. The price is competitive and fair.
Andrej Kovac (verified owner) –
No leaks! After years of dealing with leaky sheds, this is a dream.
Daisy Campbell (verified owner) –
Customer for life. After this experience, I won’t go anywhere else.
Arjun Mehta (verified owner) –
Communication could be improved. It was hard to get a straight answer on the exact delivery date. When it did arrive, it was correct, but the lack of updates was stressful.
Beatrice Chen (verified owner) –
Good experience, would use again. Solid company, solid product. Nothing flashy, just does what it says on the tin.
Caleb Zhang (verified owner) –
Minor rust spot on the roof. Not a big deal for a used container, and it was sealed easily. Just something to check upon delivery.
Mei Lin (verified owner) –
The best in the business. I’ve used other companies, but Colli Trans is a cut above.
Benjamin Clarke (verified owner) –
Secure storage solution. After a break-in in our shed, we invested in this. The lockbox system is robust. We sleep much better now.
Rhys Williams (verified owner) –
A+ Company. From the initial quote to the final delivery, everything was professional and efficient.
Clara Becker (verified owner) –
On-site storage during renovation. Lifesaver! Kept all our furniture dry and safe for 6 months. Easy on/off-hire process.
Silas Vance (verified owner) –
The lock-rods were a little stiff. A bit of WD-40 fixed them right up. Probably from sitting in a yard.
Chloe Davis (verified owner) –
Took a long time to process the order. The container was in stock, but it took over two weeks to get it scheduled for delivery. Once scheduled, it was fine.
Mona Lewis (verified owner) –
Good experience, would use again. Solid company, solid product. Nothing flashy, just does what it says on the tin.
Thomas Shepherd (verified owner) –
Solid investment. Bought two for a construction site. They’re secure, weatherproof, and have taken a beating without a scratch. Will be using them for years.
Anya Sharma (verified owner) –
Wish there were more photos online. The container is fine, but I would have liked to see photos of all four sides and the interior floor before purchasing.
Victor Sokolov (verified owner) –
The container was delivered on time and in even better condition than the photos showed. Highly recommend Colli Trans!
Richard Ashford (verified owner) –
Bought one for my son’s startup. He’s using it for his automotive parts business. It was the perfect starter solution.
Luis Mendoza (verified owner) –
Wind and watertight, just as promised. We’ve had torrential rain and high winds, and the inside is bone dry.
Lena Vogel (verified owner) –
Exactly as described. Needed a reliable used container. This one was spotless, no dents, and doors sealed perfectly. Great price for the quality.
Heidi Müller (verified owner) –
Bought for a swimming pool equipment room. The side-door access is ideal. Keeps everything out of sight and protected from the elements.
Bianca Rossi (verified owner) –
Excellent container, some paperwork confusion. The 40ft high cube we bought is flawless. There was a small mix-up with the original documentation, but it was sorted within a day. Product is 5-star, service 4-star.
Samuel Jones (verified owner) –
Customer for life. After this experience, I won’t go anywhere else.
David Chen (verified owner) –
A solid 10/10.
Jena Farah (verified owner) –
Perfect for my new business! Bought a 20ft container to use as a storage unit for my landscaping company. The process was seamless from start to finish.
Christian Wolfe (verified owner) –
Peace of mind. Knowing my assets are secure in a Colli Trans container is priceless.
Lillian Gra (verified owner) –
Friendly staff. Everyone I spoke to was knowledgeable and helpful.
Harriet Jones (verified owner) –
Friendly staff. Everyone I spoke to was knowledgeable and helpful.
Priya Patel (verified owner) –
No leaks! After years of dealing with leaky sheds, this is a dream.
Akio Tanaka (verified owner) –
Logistical geniuses. Coordinated delivery across three states for multiple site deliveries. Flawless execution.
Sophie Baker (verified owner) –
Communication could be improved. It was hard to get a straight answer on the exact delivery date. When it did arrive, it was correct, but the lack of updates was stressful.
George Abbot (verified owner) –
Slight price increase from quote to delivery. The initial quote was valid, but by the time I confirmed a week later, the transport costs had gone up slightly due to fuel prices. Understandable, but worth noting.
Frederick Sinclair (verified owner) –
A few more dings than expected. Bought a “used” grade. It’s structurally sound and watertight, but has a few more cosmetic scratches and dents than the photo suggested. Still fully functional and good value.
David Chen (verified owner) –
Clear pricing. No haggling required. The price is competitive and fair.
Mona Lewis (verified owner) –
Okay, but had an issue. The container we received had a small leak around one of the corner castings that wasn’t apparent on delivery. Customer service was responsive and sent a repair crew out within a week to fix it. Problem was solved, but it was an inconvenience.
Yasmine Said (verified owner) –
Exactly as described. Needed a reliable used container. This one was spotless, no dents, and doors sealed perfectly. Great price for the quality.
Nikolai Ivanov (verified owner) –
Perfect for a hunting cabin. Insulated it myself, holds heat great. Withstood a heavy snow load no problem.
George Abbot (verified owner) –
Used it as a temporary garage. Worked great while I rebuilt my old shed.
Alexander Pope (verified owner) –
Wish there were more photos online. The container is fine, but I would have liked to see photos of all four sides and the interior floor before purchasing.
Leo Carter (verified owner) –
Okay, but had an issue. The container we received had a small leak around one of the corner castings that wasn’t apparent on delivery. Customer service was responsive and sent a repair crew out within a week to fix it. Problem was solved, but it was an inconvenience.
Sabine Laurent (verified owner) –
Delivery was on time, but the driver was a bit rushed. He was efficient, but not as careful with my lawn as I would have liked. No major damage, though.
Isaac Goldstein (verified owner) –
Minor rust spot on the roof. Not a big deal for a used container, and it was sealed easily. Just something to check upon delivery.
Anya Sharma (verified owner) –
Bought for a disaster relief organization. Colli Trans worked with us on pricing and delivered quickly to a crisis area. Thank you for your compassion.
Nia Johnson (verified owner) –
Delivery was a hassle. The container was fine, but coordinating the delivery was frustrating. Had to reschedule twice on their end. Once it arrived, all was good.
Greta Weber (verified owner) –
Bought one for my son’s startup. He’s using it for his automotive parts business. It was the perfect starter solution.
Gemma Taylor (verified owner) –
Sold my old container to them! Didn’t know they bought used containers too. Got a fair price and upgraded to a larger one.
Sebastian Crowe (verified owner) –
Exceeded expectations
Selena Vega (verified owner) –
Sold my old container to them! Didn’t know they bought used containers too. Got a fair price and upgraded to a larger one.
Everett Sloan (verified owner) –
Damage on delivery. The container was dropped during placement, causing a bend in the door frame that now makes it difficult to seal properly. It’s been two weeks and I’m still waiting on a resolution from their claims department. Very frustrating.
Kofi Mensah (verified owner) –
A solid 10/10.
Victor Sokolov (verified owner) –
Very good overall. The container itself is great quality. Delivery was a few days later than initially hoped, but the communication was good so it wasn’t a big issue. Four stars.
Thomas Shepherd (verified owner) –
Delivery was on time, but the driver was a bit rushed. He was efficient, but not as careful with my lawn as I would have liked. No major damage, though.
Natalia Petrova (verified owner) –
Great communication. Received regular updates on the delivery status. The driver was professional and skilled, placing it exactly where I wanted.
Patrick Flynn (verified owner) –
Took a long time to process the order. The container was in stock, but it took over two weeks to get it scheduled for delivery. Once scheduled, it was fine.
Oscar Diaz (verified owner) –
A few more dings than expected. Bought a “used” grade. It’s structurally sound and watertight, but has a few more cosmetic scratches and dents than the photo suggested. Still fully functional and good value.
Talia al-Jamil (verified owner) –
Great product, minor delivery hiccup. The container is perfect for our needs. The driver was great, but the delivery window was a bit wide (8am-5pm). Would still recommend.
Genevieve Leroy (verified owner) –
A solid 10/10.
Eleanor Vance (verified owner) –
Quick delivery! Ordered on Monday, had my 40ft high cube delivered to my rural property on Wednesday. Impressed with the logistics.
Eleanor Vance (verified owner) –
Floor is in great condition. Solid timber, no soft spots. Important for heavy pallets.
Vincent Costello (verified owner) –
Used it as a temporary garage. Worked great while I rebuilt my old shed.
Nia Johnson (verified owner) –
They answer their phones! So many companies don’t. A real person always picks up.
Caleb Zhang (verified owner) –
Overall happy. A reliable company with a good product. Not “blown away,” but completely satisfied.
Bianca Rossi (verified owner) –
Fast quote response. I had a detailed quote in my inbox within an hour of my inquiry.
Liam O’Connell (verified owner) –
Excellent for equipment storage. Fits my tractor and all my attachments with room to spare. The double doors are a must.
Antonio Ferrara (verified owner) –
No hidden fees. The price you see is the price you pay. Delivery was quoted accurately and there were no surprises. Refreshing!
Sofia Costa (verified owner) –
Secure storage solution. After a break-in in our shed, we invested in this. The lockbox system is robust. We sleep much better now.
Andrej Kovac (verified owner) –
Excellent for equipment storage. Fits my tractor and all my attachments with room to spare. The double doors are a must.
Rajesh Yadav (verified owner) –
The lock-rods were a little stiff. A bit of WD-40 fixed them right up. Probably from sitting in a yard.
Rafael Silva (verified owner) –
Ventilated container for organic goods. Arrived in perfect working order. The ventilation system is crucial and works excellently.
Connor MacLeod (verified owner) –
Perfect mobile office. We had it modified with insulation, power, and A/C. It’s now the best office on our construction site.
Samuel Green (verified owner) –
A few more dings than expected. Bought a “used” grade. It’s structurally sound and watertight, but has a few more cosmetic scratches and dents than the photo suggested. Still fully functional and good value.
Victor Sokolov (verified owner) –
On-site storage during renovation. Lifesaver! Kept all our furniture dry and safe for 6 months. Easy on/off-hire process.
Dimitri Volkov (verified owner) –
The go-to for shipping containers. I’m in logistics and I recommend them to all my clients
Genevieve Leroy (verified owner) –
A few more dings than expected. Bought a “used” grade. It’s structurally sound and watertight, but has a few more cosmetic scratches and dents than the photo suggested. Still fully functional and good value.
Nia Johnson (verified owner) –
Ventilated container for organic goods. Arrived in perfect working order. The ventilation system is crucial and works excellently.
Vincent Costello (verified owner) –
The website is accurate. What you see is what you get. No nasty surprises upon delivery.
Matilda Scomidt (verified owner) –
No leaks! After years of dealing with leaky sheds, this is a dream.
Ronan O’Malley (verified owner) –
Minor rust spot on the roof. Not a big deal for a used container, and it was sealed easily. Just something to check upon delivery.
Sofia Costa (verified owner) –
Exceeded expectations
Isabella Rossi (verified owner) –
Floor is in great condition. Solid timber, no soft spots. Important for heavy pallets.
Hector Ramirez (verified owner) –
Modification wasn’t perfect. We ordered a container with a added man-door. The door works, but the finish around the weld is a bit rough. It’s on the back so it’s not a huge deal, but for the price of the mod, I expected cleaner work.
Eleanor Vance (verified owner) –
The go-to for shipping containers. I’m in logistics and I recommend them to all my clients
Vincent Costello (verified owner) –
Good value for money. There might be slightly cheaper options, but the quality and peace of mind here are worth it.
Lillian Gra (verified owner) –
No rust issues. Even the used containers are properly inspected and treated.
Felix Bauer (verified owner) –
Robust and reliable. This is my 3rd container from Colli Trans for my various business sites. Consistent quality every time.
Layla El-Masry (verified owner) –
Okay, but had an issue. The container we received had a small leak around one of the corner castings that wasn’t apparent on delivery. Customer service was responsive and sent a repair crew out within a week to fix it. Problem was solved, but it was an inconvenience.
Cora Miller (verified owner) –
Customer for life. After this experience, I won’t go anywhere else.
George Miller (verified owner) –
Bought one for my son’s startup. He’s using it for his automotive parts business. It was the perfect starter solution.
Lena Vogel (verified owner) –
Took a while to get a quote for a custom mod. Standard container purchase was easy. Asking for a quote on a custom door took a few follow-up emails. Eventually got it and it was fair.