T posts are ok if all you're trying to do is keep your chickens contained. (Although if that's all, then heavy bamboo stakes are just about as good and often cheaper).
But an all-T-post fence is not going to hold up to wind or dogs or other predators very well. In particular you will find that you cannot keep the fence wire tight, as the corners sag inward.
It is best to have at least the corner posts be wood (either 4x4 pressure-treated, or 4+" cedar fenceposts) sunk at least 2.5-3' into the ground. That way at least you can keep the wire from going all floppy. If you need to use t-posts as *run* posts (intermediate along the side, between corners) then that is not as good as wood but not the end of the world.
However a HUGE advantage of using ALL wood posts for a run is that it allows you to securely attach a horizontal board at the top, and at the bottom, of the wire fence, which will make it MUCH stronger and more durable and more predatorproof.
Good luck, have fun,
Pat
But an all-T-post fence is not going to hold up to wind or dogs or other predators very well. In particular you will find that you cannot keep the fence wire tight, as the corners sag inward.
It is best to have at least the corner posts be wood (either 4x4 pressure-treated, or 4+" cedar fenceposts) sunk at least 2.5-3' into the ground. That way at least you can keep the wire from going all floppy. If you need to use t-posts as *run* posts (intermediate along the side, between corners) then that is not as good as wood but not the end of the world.
However a HUGE advantage of using ALL wood posts for a run is that it allows you to securely attach a horizontal board at the top, and at the bottom, of the wire fence, which will make it MUCH stronger and more durable and more predatorproof.
Good luck, have fun,
Pat