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DIY Porch Potty with Drain >* Printable Plans *<

A DIY Porch Potty with a drain is a surprisingly easy build. It only requires items you can get at most hardware stores, and with practice many dog breeds can be trained to go on one.

How to Build a Porch Potty – Printable Plans

I’ve put together a printable version of the plans that I outline in this blog post, to make it easier for you to put together your own dog porch potty – diy.

DIY Porch Potty for Dogs

Click on the image above for your free printable DIY Porch Potty Instructions.

Why build a Porch Potty – DIY?

Whether it’s convenient for us or not, our pups need facilities at all hours.  And if you live up several flights of stairs (elevator or no) or don’t have a fenced backyard, sometimes the effort to get the dog outside is just too difficult or not fast enough to avoid accidents.

You can also use these plans to create a dog balcony potty.

DIY Porch Potty for Dogs

This is especially a problem for older dogs and puppies who have a harder time holding their pee and poo. They just can’t wait that long between the realization and the act of going.

If you’re in this situation a DIY Porch Potty with Drain may be just what you need! They’re inexpensive and relatively easy to build.  If you don’t want to build a DIY porch potty there are also commercial varieties available – usually called a Dog Potty Patch, which I’ll go into more towards the end of this article.

The biggest reason to build a porch potty for your dog is to make sure they have a place to go without going on your carpet or floor. After all, dogs can only hold it so long before peeing or pooping.

DIY Porch Potty for Dogs

How to build your DIY Porch Potty

I’ll give you instructions for two variations of this DIY dog potty box- a standard for most medium and small dogs and a large for bigger breeds like German Shepherds and Labrador Retrievers.

DIY Dog Patio Potty – Standard


  • A 2×6 frame with 1×2 rails to hold the plywood/pan in place –
  • A bottom-draining water heater drip pan.
  • A piece of plywood cut to the same size as the pan, with a hole for the drain spout
  • 1-1/4-in PVC Reinforced Braided Vinyl Tubing
  • 1-1/4-in Diameter Insert Combination Elbow
  • 1-1/4 inch Plastic Slip Joint Nut
  • small hose clamp found on Amazon  to fit 1-1/4 inch tubing.
  • expanded steel the size of the frame
  • a steel crossbar the width of your base frame
  • Metal Flashing found on Amazon
  • AstroTurf found on Amazon
  • A wood frame to outline the top of your finished potty.


DIY Porch Potty for Dogs

  • To build the base frame for your porch potty, you will need 4- pieces of 2 x 6 lumber each cut 30 inches long.
  • Screw or nail the frame together following the layout in the image.
  • To make the inner rails for the plywood and pan to rest on, you will need 4 pieces of 1×2 lumber cut 27 inches long. You will screw or nail these rails to the inside bottom of the frame with the 2 side rails at a slight slant to allow for liquids to flow toward the drain.
  • The placement of the rails should allow enough room on top for the plywood and drain pan and allow enough room underneath for the plumbing.
  • Cut the plywood to fit inside of the frame so that it will rest on the inside rails.
  • Lay the drain pan on top of the plywood and using a pencil, mark the drain pan hole onto the plywood.
DIY Porch Potty for Dogs

  • Cut the drain hole in the plywood. Make sure the hole is big enough for the threaded end of the elbow to fit.
  • Cut the pan sides to size and set the pan on top of the plywood with the drain holes aligned.
  • Attach the plumbing elbow to the hose and add the clamp to the hose.
  • Place the plumbing elbow (the side without the hose) through the hole in the plywood from the bottom.
  • Secure it in place from the top of the plywood using the plastic slip joint nut.
  • Add the plywood and drain pan to the frame making sure the drain hole in the drain pan lines up with the  hole in the plywood.
  •  Cut a notch in the bottom side frame large enough for the hose to pass through.
  • Make two notches on opposite sides of the top of the frame to lay your steel crossbar on.
DIY Porch Potty for Dogs

  • Cover the top of the wood frame with metal flashing overlapping the edge of the metal pan.
  • Add the expanded steel to the top of the frame.
  • Add the AstroTurf on top of the expanded steel.
  • To finish off your porch potty, you will need to add a frame to the top of the potty.
  • To build the frame, cut your boards to fit the outside dimensions of the potty box. 2x 4 will work well for this.
DIY Porch Potty for Dogs

  • If you are building a 30 inch potty, you will want to cut your boards about 33 inches long.
  • Of course you will want to measure your finished box and adjust your measurement as no two pieces of wood are exact.
  • After building the sides of your frame, cut pieces of 2×4 or 2×6 to create a kind of picture frame to fit on top of the sides you just built.
  • The finished frame should slip over the top of your porch potty creating a safe edge for your dog and giving your project a finished look.
DIY Porch Potty for DOgs

DIY Dog Potty Area for Large Dogs

The instructions above work well for small and medium sized dogs. If you have a large dog, then increasing the dimensions can give him more room to go. It’s a pretty simple fix if you’re handy. You will want to increase all the measurements by about 20%. Anymore than that and the diy dog potty area for patio becomes too big to handle.

How to clean your DIY Porch Potty

You’ll need to clean your diy dog potty patch potty every day if you don’t want it to smell up everything. Pick up and dispose of any poo right away – flushing it down the toilet can work very well.

Then in the evening before bed rinse out the grass and drip pan with a hose or pitcher of water (that’s why it has drainage), and twice a week wash it with mild dish detergent.

DIY Porch Potty for Dogs

It’s pretty simple and can be much easier than taking your dog for long walks late at night.

If you don’t want to make a diy dog turf potty, there are many commercial varieties available of dog potty patches you can find on Amazon, from pee pad holders to ones similar to this DIY that have turf.

I have a huge article on Indoor Dog Potties here.

The Bottom Line on Building a DIY Porch Potty with a Drain

Building a DIY dog potty with a drain is a fairly easy project if you are handy. It goes together quickly and functions well.

Teaching your dog to go on a diy dog toilet can take patience and consistency, but for most breeds it’s possible.

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