how can i stop my horse from eating the wood on her stall??? i heard put burned oil on it but that dont work

Put her in the pasture. She is bored in there.

The only thing that's ever worked for me is creosote.

Some horses just do it out of boredom. Well seasoned oak tends to dry hard enough that they don't chew those boards. So for those not fortunate to have a sawmill close by, angle iron or iron strapping screwed onto the top of the boards will stop this. Just fit your ends/corners tight so lead ropes or tie chains can't catch.

I use old oil from my friends DIESEL truck and I even mix more diesel with it. The diesel smells and most horses dont like it but with some its a battle.
The oil is just a carrier. You can mix other stuff with it. Yea, creosote works well but I cant seem to find it now-a-days.

And yes, its boredom. Horses like to chew. Thats mostly what they do in the wild. Throw a bale of straw in and they might like it better than boards. I had these bales of compressed straw and just left one in the feeder that was not broken open and they liked that enough to leave the boards alone..... mostly.

ZR

I know from experiance, there is a product called Halt Brown Cribbing it will stop a horse. I have used it for 12 years and it really works.

Take some red hot ground pepper and mix it in water so you can spray it on the wood. Probably will have to refresh it every couple of days. She's either bored or frustrated or both because she is not getting enough work/exercise. Turn her out and let her stomp flies she won't have time to chew the wood.

Most bigger feed stores carry "Halt Cribbing" coating for about $30/gal. Buy the brown, not the clear. It's about the only thing I found that works. Creosote is somewhat toxic and I don't know if you can even buy it any more. Some equines think old motor oil is a treat.

Boredom is the culprit. Work it harder and more often.

We use dry wall angle. Plenty of holes in to nail it on. It cuts easily with tin snips. But she is bored. Turn her out if you can.

salt block and trace mineral block

This bad habit will be quickly picked up by other nearby horses. Make it stop and or separate from others.

And, that's another good reason not to ever use pine wood where horses can reach it because they seem to like to chew it.

Covering eveything you can with chain link mesh works real well

Give her 'poplar cycles'. Read it "somewhere" last winter.

This probably sounds weird to some, but I have found out that most of my cribbers have had retained baby teeth.

I've used neck straps, steel .. everything .. but when I started having those baby teeth extracted, every one has stopped cribbing, or at least reduced it very dramatically.