Designing a Concrete Dog Run With Proper Drainage

We recently got a call from a customer — let’s call her Laura — who wanted a concrete dog run in her backyard. But she was very clear about one thing: she did not want just a flat slab of cement.

Laura told us, “I want it angled a little bit with proper drainage. I don’t want water or urine just sitting there.” She wasn’t sure exactly how to design it, but she knew enough to realize that a standard flat patio-style pour would cause problems for her dogs and her yard.

We hear this kind of question a lot, so I thought it would be helpful to walk through what we explained to her — and what you should know before you pour a slab for a dog run.

Why a Dog Run Needs More Than a Flat Concrete Slab

A basic concrete patio can be almost flat and still work fine. A dog run is different. You’re dealing with:

• Rain and snowmelt
• Dog urine and occasional messes
• Hosing and cleaning on a regular basis

If the slab is flat, all of that moisture has nowhere to go. It pools, soaks into edges, leaves stains, and can start to smell. That’s exactly what Laura was trying to avoid — and she was right.

So the first thing we told her was: design the concrete dog run around drainage first, then everything else.

Getting the Slope Right: How Much Pitch Do You Need?

One of Laura’s big questions was, “How much should it be angled?” There’s no one-size-fits-all answer, but there are good rules of thumb.

For most residential dog runs, we recommend:

• Minimum slope: about 1/8" per foot (1%)
• Ideal range: 1/8"–1/4" per foot (1–2%)

That’s enough to move water toward a drain or a gravel area without feeling like your dog is walking on a ramp all day. In Laura’s case, we planned to pitch the slab away from her house and toward a designated drainage side.

The key is consistency. A proper slope is gentle and even, not wavy. That’s where an on-site visit is important — we walk the yard, look at existing grades, and design the slope so water doesn’t just run from the dog run to a new problem area.

Where Should the Water Go? Drainage Options

Once we talked slope with Laura, the next question was where the water should actually end up. You have a few good options:

1. Surface Drain to a Gravel or Landscaped Area

This is the simplest approach and often what we recommend if the yard allows it.

• We pitch the slab toward one edge.
• That edge transitions into a strip of gravel or a landscaped bed.
• Water runs off the concrete and soaks into the ground.

The key is making sure that gravel area is lower than the slab and isn’t right up against your foundation or a neighbor’s fence.

2. Trench Drain or Channel Drain

If you don’t have space to let water run off to the side, we can install a trench drain (a narrow, grated drain) along one edge of the slab.

• Concrete slopes toward the drain.
• The drain connects to underground pipe.
• The pipe carries water to a safe discharge point in the yard or to a drain system (where allowed by code).

This is a cleaner-looking solution but more complex and costly. For Laura, we discussed it as an option if the natural yard slopes didn’t cooperate.

3. Yard Drains or Dry Wells

In some backyards, we’ll combine a slight surface slope with a small area drain or dry well in the lawn. Water leaves the slab, crosses a short stretch of ground, and then collects in a subsurface gravel-filled pit or a yard drain.

Whatever you choose, the main rule is simple: never aim runoff directly at your house or your neighbor’s property.

Concrete Details That Make a Dog Run Easier to Clean

Drainage was Laura’s first priority, but we also walked her through some design details that make day-to-day use a lot easier:

• Surface finish: We usually recommend a light broom finish. It’s slip-resistant for paws (and humans) but not so rough that it traps grime.
• Joints and cracks: Concrete needs control joints to minimize random cracking. For a dog run, we plan them so they don’t collect waste or create toe-stubbing edges.
• Edges and height: We try to keep the slab just slightly above the surrounding grade for drainage, but not so high that it creates tripping hazards or big step-ups for smaller dogs.

We also talk about sealing. A good sealer (chosen for outdoor use and pet safety) helps resist stains and makes hosing down the run much easier.

Planning the Layout: Before You Pour the Slab

When we set up Laura’s estimate visit, we told her we’d bring design ideas but also wanted to see how she envisioned the space. Before you pour, it’s smart to think through:

• Size and number of dogs: Bigger dogs or multiple dogs need more room to move and play.
• Sun and shade: Consider where the sun hits throughout the day; you may want part of the run shaded.
• Access: How will you and your dogs get in and out? Through a side gate, back door, or garage?
• Hose connection: Make sure there’s an easy water source nearby for cleaning.

During an on-site visit, we can also check existing slopes, downspout locations, and any low spots in the yard so your new slab works with the whole property, not against it.

When to Bring in a Professional Concrete Crew

You can DIY a small slab, but when you’re dealing with pets, drainage, and a long-term surface, a professional pour is usually worth it. With Laura, our plan was to walk the site, talk through her ideas, and then recommend the best slope, thickness, and drainage approach for her specific yard.

If you’re considering a concrete dog run and you’re not sure how to handle the slope or where the water should go, that’s the perfect time to have us come out, take a look, and help you design it right the first time. It’s a lot easier — and cheaper — to get the drainage right before the concrete truck shows up than to fix a flat, smelly slab later on.