Will this work?

[Sullysul]

Will this keep predators from digging under?

 

[hayley3]

The red bricks can be moved by a raccoon. So you need to replace the bricks with blocks, in my opinion. But also make sure you are not giving them a stepping stool.
Also I would add blocks to the opposite side too.
My coop was inside a barn and I laid down a 1/2 sheet of plywood and then set concrete blocks on it. But my main predator was raccoons.
Foxes are the long-distance diggers in my experience.

 

[Punkybrewster]

I would put 18 inch skirt of chicken or welded wire on the ground first and then the blocks.

 

[rosemarythyme]

Skip the blocks entirely and put in a hardware cloth apron. That set up looks incredibly appealing for rats to tunnel under - they'll start at the base of the stones and just go forward and under.

Also that chicken wire can be breached by mice, rats, some snakes and anything raccoon sized and up.

 

[centrarchid]

I have been using the larger cinder / concrete blocks much as shown. They seem more effective when on opposite side of fence as party doing the digging. Diggers I am dealing with are dog pups trying to get from one kennel to the next. They are more vested in the effort than something like a fox and can dig more effectively than a raccoon. When the blocks are opposite digger, they slide down into hole and become a source of frustration.

 

[Organic Gal]

I have 8X16 pavers around my run and I have not seen anything trying to dig under. They are way to heavy for a racoon to move.

 

[Sullysul]

H

Skip the blocks entirely and put in a hardware cloth apron. That set up looks incredibly appealing for rats to tunnel under - they'll start at the base of the stones and just go forward and under.

Also that chicken wire can be breached by mice, rats, some snakes and anything raccoon sized and up.

How can the chicken wire be breached by raccoons?

 

[rosemarythyme]

How can the chicken wire be breached by raccoons?

Because of the way the wire is twisted to form the fence and openings are decently large, coons can just latch on and pull to enlarge an opening, then reach in an just grab a chicken and forcibly pull pieces of it through the hole. Or if they pull hard enough they can tear the wire apart, period.

https://www.mypetchicken.com/backya...e-gauge-and-why-should-I-care-about-H346.aspx

Not claiming hardware cloth is perfect but it should be more effective against coons at the very least, and will keep out all but the tiniest of rodents.

 

[centrarchid]

H

How can the chicken wire be breached by raccoons?

In some situations they can chew through the chicken wire, or tear is away. I still use chicken wire because chickens are encouraged to roost away from it and dogs will go after any critters trying to get through it.

 

[hayley3]

H

How can the chicken wire be breached by raccoons?

The reason we use 1/2 inch hc is so the raccoons can't use their fingers to grip it and yank it away from where it's attached.
I wish I had taken a picture of what they did to my garage walk door. They peeled the outer metal layer up and away trying to get inside. They also ripped off hardware cloth that I had stapled to wood so then I started sandwiching it with furring strips. only then did I have a secure coop.