Punky wood- will disintegrate when you smack two pieces together. If it makes a wet noise or feels super moist it’s not good. If it thunks/feels dry you’re doing good. Make sure you have a wood rack OFF the ground and either metal or pressure treated wood. We just had to move our piles and they had them on barely covered pellets that were rotting. Also make sure your wood is covered on all four sides- weigh down the top with other wood pieces/rocks and the bottom with logs/rocks.