The Dog Mansion - or - Knock-Down Dog House by jwilliamsen
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When I rescued my dog, Mac (5-year old Belgian Malinois/German Shepard mix), I didn't really have a proper "dog house" for him.  Since the weather at that time was mild, I had a plastic kennel outside for him - which seemed to work OK - but I knew that as the weather turned colder he was going to need a place to take refuge from the cold should I have to leave him outside for any length of time.  

I looked around for a commercial doghouse, but the ones I found didn't meet my design criteria - and they were kind of ugly - so, I decided to build my own.

Design Criteria:
  • Had to be a KD (Knock-Down) design in case I wanted to transport or ship it.
  • Had to be light enough for me to move it around the yard by myself
  •  I wanted it to be reconfigurable - i.e. change door/window locations - or remove walls all together.
  • Insulated with some solar-warming capacity
  • "Sittable" - since Mac likes to get up on top of things - kind of like Snoopy
  • Sit up off the ground to protect it from water and make it easy to clean under it.
  • Couldn't cost more than a good "commercial" dog house.

After sketching out a few ideas, I came up with a design that meets all the criteria I had laid out. Keep in mind that this house was designed for the size and weight of Mac - so it might be too big or too small for your dog. You want to have the interior large enough for your dog to stand up and turn around, as well as lay out full length - but not too much bigger than that since in colder weather the dog's body heat will be the main source of heat for the doghouse. The door opening should be *just* big enough for your dog to duck into - so - I measured Mac's shoulder width and height and worked with those rough dimensions.

I wanted the house movable so that I could reposition it in the backyard based on the season. In the Summer, I put it up against the house where it's in shade most of the time, and in Winter I move it out to four paver blocks I've embedded in the yard so that the house gets as much sun exposure as possible. The solar "heating" works pretty well - the inside of the house during the Winter stays about 15 - 25 degrees (F) warmer than the outside air during the day (Mac sleeps in a kennel indoors at night).

The basic structure is a knock-down frame with torsion-box walls. Torsion boxes - the same principle used in constructing most doors these days - are *very* strong and rigid for their weight, and they also allow for plenty of room for insulation.

Overall cost was about $375 - and you could cut $75 off of that if you left out the window. I put a window in for two reasons: 1) to allow for sunlight to pass through and warm the interior during the winter (I have a dark-colored mattress in there) and 2) to allow air-flow during warmer months. Another nice thing about this design is that the walls can be removed and switched around (or left off) if you decided, for example, you wanted to change which sides the door and window were on. The house can be "knocked-down" (disassembled) into a roof assembly, corner posts, wall panels and floor assembly fairly quickly if the need should arise.  If you didn't want this feature, you could eliminate it and make construction even easier.

Materials:
  • 2x4 framing lumber
  • 1/2" plywood
  • 1/8" Melamine sheet (sometimes called "tileboard")
  • 4x4 posts
  • Polyurethane construction adhesive
  • Roof Edge Flashing
  • Roofing Paper
  • Rigid Insulating Foam
  • Exterior Sheathing (embossed OSB in this case)
  • Roof material (scrap rubber mat from local gym)
  • Corner trim - plastic
  • Roof "struts" - Baltic Birch scraps from another project
  • Window Screen
  • Furniture Bolts
  • T-Nuts
  • PVC Pipe
  • Exterior primer and paint
  • Silicone sealant
  • Various screws, staples, etc




 
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Step 1: Build the Main Frame

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Dimension your lumber:

I prefer to re-dimension store-bought lumber - I don't like dealing with rounded edges and faces that aren't flat - but a person could probably work around these little details.  The 4x4 posts (actual 3-1/2" x 3-1/2") were jointed and planed down to 3" x 3", and the 2x4 stock (actual 1-1/2" x 3-1/2") was sawn and planed down to 1-1/4" x 2"  (the 2" dimension matches the thickness of the rigid foam).


Build the main frame:

The corner posts were cut to length and the tongues were cut on a table saw with a dado blade,  however, careful use of a circular saw and chisels would work, too.  Clean, flat, square edges are pretty important here.

The roof and floors are a basic ladder frame with the cross-members let into shallow dados on each side.  The dados are probably overkill - but that's just the way I roll - lol.  The floor frame was skinned on the bottom with 1/2" OSB sheathing (Oriented Strand Board or Chip Board) and on the top (the "floor" of the dog house) with 1/2" plywood.  The top frame was skinned on the inside (ceiling) and the top with 1/8" Melamine sheet stock.  ALL panels were attached with construction adhesive and mechanical fasteners - either screws or staples.

The roof and floor frames are designed to "capture" the "tongues" that are  machined onto the ends of the corner posts.  Basically, the posts have a tongue (double half-lap joint) that slips down into a square hole formed by the sides of the frame pieces and a filler block.  The easiest way to ensure good alignment of the bolt holes through the frame and post tongue is to assemble the frame, clamp it together, and then drill the holes through your pieces.  A furniture bolt is then slipped through a hole drilled in both the frame and the tongue of the post and threaded into a t-nut secured to the inside of the tongue (see illustration).  It sounds more complicated than it is.  There is a recess around the hole (made with a spade bit) for the bolt on both ends to keep the head of the furniture bolt and the flange of the t-nut from interfering with assembly.

Once the corner posts are in and everything is bolted together (incidentally, removing these 8 bolts would allow the frame to be disassembled), the bottom (OSB) is installed, followed by insulation, and then by the "floor" (plywood) of the structure.  The "top" (melamine) is installed, the frame insulated, and then the "ceiling"(melamine) is installed.  All of these use construction adhesive and pneumatic fasteners - mostly staples - to create very strong and torsionally rigid frames.

I decided to prime and paint the frame at this point since I would be using oil-based enamel and it would be the easiest time during construction to move around and get at all the parts.  I was very concerned with moisture and sealing the wood - I wanted to be sure that water would have a very hard time sneaking into the frame and doing any damage.

jwilliamsen (author) says: Dec 17, 2012. 1:39 PM
External dimensions are roughly 48"L x 30"W x 40"H (not counting the height of the feet)
twistedsense says: Dec 17, 2012. 12:22 PM
What are the dimensions of this? I know to resize it for my dog but curious just how big it is.
22tpring says: Feb 19, 2012. 3:48 AM
....and no one who has commented on your plans has proposed marriage yet? Man, some women are just BLIND!!!! ;o)
jwilliamsen (author) says: Mar 4, 2012. 9:56 PM
Nope! Not a single one! - sheesh - lol.
Greasetattoo says: Aug 28, 2011. 7:36 AM
Nice pad!

Here is mine....
Angus
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tuxedo1954 says: Sep 20, 2011. 7:24 AM
very nicely done..you must love that great looking dog
jwilliamsen (author) says: Aug 28, 2011. 8:06 AM
Nice! The dish holder is a good idea, too - keep them from getting turned over and scattered around. I assume the roof is hinged?
Greasetattoo says: Aug 28, 2011. 11:32 AM
Yep, the roof is hinged.
All insulated.
Here is where I got my plans.
http://www.doghouseplans.com/
CatTrampoline says: Sep 13, 2011. 10:34 AM
Congrats on winning the Pets Challenge. The very nice diagrams and detailed instructions make it easy for someone else to build one.
I built something along these lines for pet chickens 10-15 years ago (only rather lumpy-looking and with a smaller budget) so I can really appreciate the thought that went into the weatherproof and portable design.
Uptonb says: Sep 12, 2011. 9:18 AM
Good luck on the Pets Challenge.
dracona2112 says: Aug 28, 2011. 1:35 PM
Dear Mac,
Well done Sir! I have never seen an owner this well trained.

All kidding aside, a very nice build, directions are superb, While it might be a bit over kill for some. I think you are the type of person who sees to every detail, no matter how small, and for that reason, this K9 mansion will be around for a very long time.

P.S. I am a dog lover at heart, do you think Mac would mind if I come an stay at his house the next time the wife puts me in the dog house?
jwilliamsen (author) says: Aug 28, 2011. 9:45 PM
LOL - if you think THIS is over-kill, I probably shouldn't show the bed I made him - lol - it's nicer than mine.


I'm sure he'd rent you the house for those evenings of "domestic tension" - a few biscuits would probably be all he'd need :)
dracona2112 says: Sep 8, 2011. 6:42 AM
I would love to see the bed you made him. Over-kill is only in the eye of the builder. ( i hope that came out as i intended it to. I have in no way meant any disrespect. in fact, i am envious of your talents. ) Rock on
Dracona
jwilliamsen (author) says: Sep 11, 2011. 6:40 AM
I plan on posting an instructable for the bed in the future. It's built more like a piece of furniture than your usual "dog bed" - i.e. a big pillow. It has a frame and spring system (elastic webbing), etc. Stay tuned :)
jpape says: Sep 1, 2011. 9:51 AM
What did you to cut out the 90 degree corners in the PVC?
jwilliamsen (author) says: Sep 1, 2011. 10:40 AM
I used the table saw and a standard carbide blade (ATB). Just cut a slit along the length, rotate 90 degrees and cut out the section.
buirv says: Aug 29, 2011. 9:37 AM
A very Lucky Dog :-)
CementTruck says: Aug 28, 2011. 6:53 PM
You should sell the plans to IKEA. They can call it Barkkhomme , or Mutthutt, or some other inane name.

Great build!
slice_rulz says: Aug 28, 2011. 11:06 AM
what no skylight?!?!? just kidding. this really looks like a doggie mansion. nice work. honestly, too good for my dog... another joke. it really has everything a dog could want.
vanadium chrome says: Aug 28, 2011. 3:12 AM
It looks really beautiful, but how do you manage to clean the kennel when it becomes real dirty?
jwilliamsen (author) says: Aug 28, 2011. 8:03 AM
Cleaning it is pretty easy - most cleaning can be done through the window or the door opening - but if it's *really* dirty it only takes a minute to take one of the walls off and get unobstructed access to the interior - one of the nice features of the modular walls.
rimar2000 says: Aug 27, 2011. 4:28 PM
Beautiful house! Many human beings would want to have one like it!
kazael says: Aug 28, 2011. 6:41 AM
I agree. Nicer and almost bigger than my first dorm room. :D

Great work!
jwilliamsen (author) says: Aug 27, 2011. 4:30 PM
Thanks! - I've often thought about how I should build a bigger one just in case I have to move out in the middle of nowhere - lol - A portable cabin ... hmmmm - that could be interesting :)
rimar2000 says: Aug 28, 2011. 6:46 AM
Yes that would be a good project.
jessyratfink says: Aug 27, 2011. 8:29 PM
This is fantastic! When we finally get a house with a yard, our dog will have one. :D
sunshiine says: Aug 27, 2011. 8:21 PM
Super Instructables! My hubby loved your work! He is a perfectionist!
Lorddrake says: Aug 27, 2011. 7:38 PM
my dog is going to have to send you a thank you note once i get done building one for him. :)
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