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critters under a shed?

rusty1

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Feb 6, 2009
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No. Illinois
...have a 12'X20' shed built on treated 4X4's, critters have been living under it; what's best way to get rid of them?
 
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yeldogt

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Jan 2, 2012
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If you raise it up ... they don't have safe cover ... it's typically the solution
 

WisJim

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Dec 20, 2010
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Menomonie, WI
What kind of critters? I had woodchucks both under slabs and under sheds built on stringers. They seem to move quicker than my trigger finger so I had better luck trapping them. Then I drowned them, shot them, or gave them to a friend who ate them. After the woodchucks, I had skunks or possums move it, which I dealt with the same way. Blocking access was the solution.
 

velocipede

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Oct 22, 2013
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Yorktown, Virginia
Depends on how much work you want to do. Dig an 18" deep trench around the perimeter. Install 1/2" galvanized hardware cloth from the bottom of the trench to the bottom of the shed floor. Back fill the trench with lava rock, Stalite Permatil, or washed #57 stone. This will keep out most rodents and snakes, but not insects. Add finer screen to keep out insects.
 
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rusty1

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No. Illinois
^^^skunks, *****, ground hogs....I've filled in their entry holes and placed cinder blocks on that.
 

Kaizen

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New England
^^^skunks, *****, ground hogs....I've filled in their entry holes and placed cinder blocks on that.


Mine is 6-10 inches off the ground and never get them although they make burrows in other parts of the yard. Jack it up. They hate light. Be aware if they already have babies or pregnant they won’t move till they finish that.


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LS6 Tommy

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Dec 27, 2013
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Northern NJ
^^^^that would just give em more room!

If you raise it up ... they don't have safe cover ... it's typically the solution

Yeldogt knows the deal...
For some reason people want their shed almost on the ground. Anyone who ever built a shed, feed crib or small coop on a farm puts it up at least 6". My neighbor actually argued about it with me when he went to replace the rotted old shed that was in his yard. The original one was 8" up and had no critter problems. He put the new one flat on gravel. Groundhogs, skunks and rodents have forced him to tear it down and replace it twice. Still puts it on the ground. Mine's been 100% critter free since long before he replaced the orignal shed. It's 6" up on concrete blocks...

Tommy
 

theoldwizard1

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Feb 22, 2011
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Location
SE MI
Get it up higher off the ground.

I have preached this for years on GJ ! Critters won't nest where there is light and good air flow.

(My son learned his lesson when a possum DIED under a section of deck built directly on the ground. We were gagging as we pulled up deck board to find the rotting remains !)
 

Sevenhills1952

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Aug 30, 2018
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Virginia
Growing up we had a shed like that rats got under.
Here's what my Dad did that worked. He and I chinked it all around with old rags, newspapers, anything to seal it pretty airtight. Then he drove his Packard over beside it, ran a vacuum cleaner hose from tailpipe to up under shed. He let it idle for a couple hours.
Shut it off and we removed all paper and rags.

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PelicanPines

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Apr 30, 2014
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New Jersey, USA, Earth, My own reality
When I shave my head with clippers... I gather all that's cut and stuff it in to the spaces under my big shed (16'x12'). Every 5 years or so... I toss a few moth balls under the shed as well.

Doesn't seem to keep out chipmunks but skunks, opossums and wood chucks hate the hair. Racoons and cats hate the mothballs.

Word of caution... Mothballs can be dangerous to children, dogs etc. In NJ... most health departments will frown upon it as well.
 
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couch67

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Mar 18, 2016
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Ontario Canada
If its a skunk and you just want it to move on, playing a radio under the shed will get rid of them. Put it on a talk channel and leave it there 24/7, they will move on. Then you can do what you need to make it critter-proof.
 

Ray-CA

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Jan 6, 2007
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Location
San Diego CA
Small dog (terrier, dachshund etc.) that by nature and breeding is genetically programmed to find/chase varmints. They’re also small enough to get under the shed.
 

Ray-CA

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Jan 6, 2007
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San Diego CA
If its a skunk and you just want it to move on, playing a radio under the shed will get rid of them. Put it on a talk channel and leave it there 24/7, they will move on. Then you can do what you need to make it critter-proof.

I did the same thing to get rid of a relative. Put the shop radio on conservative talk radio and they left two days later.
 

mmb617

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Dec 5, 2010
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4,424
Location
PA
I gave up on that war a long time ago. I like my sheds close to ground level so it's easier to get wheeled equipment in and out without needing a long ramp.
 

CraigStu

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May 22, 2014
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4,050
Location
Blacksburg, Va
Whatever you do, do NOT poison them. They will manage to get to their hideaway under you shed and then croak. The smell a week + later will then keep you away.
 

theoldwizard1

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Feb 22, 2011
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43,245
Location
SE MI
Do critters dig under concrete slabs with footings?

A common term for a footing is a "rat wall" ! Not sure how deep it needs to go but probably at least a foot.

The other method is get some 4' medium duty fencing. Sometime called "welded wire" fencing, but the holes can not be more than 1/2". It has to be galvanized and heavier than "chicken wire". When you cut your sod out, go about 2' wider around the whole area. Lay the fencing down first with at least 2' outside of where you are going to lay the forms for the slab.

You can lay the sod back on top of this fencing and be certain no critters will burrow underneath.
 

Jazz1

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Jan 3, 2016
Messages
4,188
Location
Thunder Bay On.
I used flex pipe from my trucks exhaust and ran for 1/2 hour under sons shed. No sign of critters anymore.
Dogs would have to be permanent. Both my hounds are live game hunters. Ibizan and Portuguese Podenco. They are deterrent to any critter trying to move onto property and they get sprayed once a year by skunk
 

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nadogail

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Jan 23, 2009
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Coronado, CA
Critters need Food, Water and Concealment. Depriving them of all of these will make your property less attractive to the Critters.
 
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