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Handy Home Products

Model # 18221-1

Internet # 100350345

Columbia 12 ft. x 20 ft. Wood Storage Building Kit with Floor

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$3,279.00 /each




Model # 18221-1

Internet # 100350345

Store SO SKU # 502665

The Handy Home Products Columbia 12 ft. x 20 ft. Do-It-Yourself Wood Shed Kit with floor offers massive storage and recreational possibilities inside a complimentary gable design. This 12 ft. wide class floor plan features superior-grade 2 x 4 wood framing and a robust 2040 cu. ft. of storage capacity, providing the mega space you need to store all your outdoor yard tools and lawn gear. The expansive Columbia also boasts a flexible door location install your doors on eave or gable sides! The smart-sized 7 ft. high side walls and 10 ft. peak compliment the over-sized, over-sized 5 ft. 4 in. W by 6 ft. H double doors with full-length galvanized steel hinges. A premium rust-resistant, keyed locking handle is included for improved security. This Do-It-Yourself wood shed kit can be easily assembled with a hammer, screwdriver, tape measure, level and stepladder.

  • Do-it-yourself, pre-cut wood kit is ready to assemble with common household tools
  • Superior-grade 2 x 4 wood construction – a natural choice for going green
  • Beautiful, wood-grain embossed LP siding is factory-primed and ready to paint (paint sold separately)
  • 2040 cu. ft. storage capacity provides an expansive space to organize your tools, store your extra items or create the perfect workshop
  • Extra-tall 10 ft. peak is supported by ultra-premium 7 ft. side walls - ready for your long-handled tools
  • Over-sized, 5 ft. 4 in. W x 6 ft. H double doors are pre-assembled and offer easy access
  • Full-length, galvanized steel hinges provide strength and longevity for trouble-free operation
  • Flexible door location install your doors on eave or gable sides
  • Includes four cross-buck designs adds style and strength to your doors
  • Includes premium rust-resistant, keyed locking handle for improved security
  • Includes complete wood floor treated floor frame with wood decking
  • Can be installed with a cement foundation
  • Available curbside delivery only
  • Personalize your Columbia the way you want it - purchase paint and shingles (both sold separately)
  • Simple, illustrated instructions included
  • 15-year limited material warranty
  • MFG model # : 18221-1
  • MFG part # : 18221-1

Info & Guides

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Approximate Depth (ft.) 
Approximate Width (ft.) 
Assembled Depth (in.) 
244.00 in 
Assembled Height (in.) 
122 in 
Assembled Width (in.) 
155 in 
Door Opening Height (In.) 
Door Opening Width (In.) 
Door Opening Width (ft.) 
Exact Width x Depth 
12 ft 11 in x 20 ft 4 in 
Sidewall Height (in.) 
Assembly Required 
Floor Options 
With Floor 
Number of Doors 
Number of Windows 
Product Weight (lb.) 
2947 lb 
Roof Color Family 
Light Brown Wood 
Roof Pitch 
Roof Shape 
Shed Door Type 
Shed Features 
Door Latch,Double Door,Lockable Door 
Shed Style 
Siding Color Family 
Storage Capacity (cu. ft.) 
Warranty / Certifications
Manufacturer Warranty 
15 year Limited Warranty 


Rated 3.2 out of 5 by 10 reviewers.
Rated 5.0 out of 5.0 by Very good product I am an engineer and am often described as "picky". I installed this shed (12x20) just over 5 years ago. I was very happy with it then, and am still very happy with it. Others have criticized the instructions; I thought they were very good, not perfect, but close. There was a lot more detail in the drawings than I expected, you just have to take the time to look & read attentively. The optional windows that I ordered (item 16694) were VERY good quality, with strong glass & frames, far better than the cheap plastic ones I have seen on other displays (not Handy Homes) in hardware stores. The optional cupola (item 16582) was also very good quality, in fact it might have been too good because once assembled, it was heavy and difficult to lift up to the peak of the roof. The customer service was also excellent - I messed up one piece of trim, contacted Handy Homes for a replacement piece, and they sent it to me in a timely manner, FREE of charge (and I had expected to pay). After 5 years there are no cracks, no leaks, no warping...... it looks the same as the day installation was completed. I am now considering installing a Gazebo and just went to see what Handy Homes has to offer (which explains my review after 5+ years). November 21, 2014
Rated 3.0 out of 5.0 by Nice Shed - Instructions Lacking Like the shed for the price, but the instructions to put together where lacking good verbal descriptions. We were stumped a few times trying to figure out the pieces of the puzzle, especially the instructions for the floor kit. Instructions and pieces where sent for a 12X12 shed and a 12X8 shed. It would have been much simpler and secure if the instructions and diagrams where written and architected for a 12X20 shed. Luckily we had a carpenter friend to help assemble this puppy! Would suggest if you are not handy with building, get help or pay to have installed. November 29, 2011
Rated 2.0 out of 5.0 by Overall a decent product - but NOT easy This kit came as 3 different sheds (2) 12x8 and (1) 12x4 in order to build a 12x20. There were no 12 ft 2x4; you had to splice an 8 ft with a 4 ft. The floor was only 3/8" - not very strong. Roof joist are 24" on-center, a little weak. It was NOT easy to build, you must have two people min. Instructions weren't very clear in areas. My kit came with gray and white trim pieces and doors, so looks awful until painted. When finally assembled it came out nice - concidering everything mentioned. The doors are very strong and came with good hardware. November 7, 2012
Rated 2.0 out of 5.0 by Worst directions ever!!! This 12 x 20 shed is fabulous once you can figure everything out! AND our kit was not intact upon arrival so we werent even sure we had all the pieces. we were several pieces shy. Thank goodness we had extra wood handy. Why doesnt Home Depot have EXACT directions for a 12 x 20 shed w/ floor instead of 12x12 adding 2 four foot extentions. The integrity of the building is then comprimised . We had to do alot of fancy woodwork to make it sturdier! The siding is "flimsy". It has 12x12 or 12 x24 floor instructions but not a 12x20. The floor itself was like putting together a jigsaw puzzle!!! AWFUL! If they could come up with directions and matching pieces for all sizes, it would be a whole lot easier!! Not happy as a participating builder of this particular building. Would NOT recommend to novices or even semi-confident homeowners that think they are do-it-your-self-ers! November 29, 2011
Rated 2.0 out of 5.0 by Product issues There was a severe shortage of nails for the kit. We had read that the instructions were a challenge (which they were), which added time to our work, but we were able to figure it out. But we only received enough 2" and 3" nails to complete the floor and the long wall with the door. We had to go buy extra, for which Customer Service will reimburse us, but that obviously added even more time to our efforts. October 15, 2012
Rated 5.0 out of 5.0 by Love this I use this building for my portrait consultations. I was able to easily set it up and finish the way I want. My clients tell me it is homey. June 13, 2009
Rated 4.0 out of 5.0 by Sweet Best I've ever owned! It is very roomy for a 12X20 shed. I would recomend this shed to any one who is doubting it. Love it and Thank You, Home Depot! November 29, 2010
Rated 3.0 out of 5.0 by Ok Not bad. You basically get what u pay for. You'll need someone handy as the directions are not that detailed. The floor is 2x4 instead of 2x6. I recommend doubling them up. Nothing is over 8 ft long so you will be splicing some together if more than 8x8 November 12, 2011
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