The 1/4" is not as strong as 1/2".
I did a search for you, check out the information: https://www.backyardchickens.com/search/10242475/?q=hardware+cloth+1%2F4&t=post&c[child_nodes]=1&c[nodes][0]=9&o=relevance
I have read here that the 1/4" hardware cloth (HWC) is too weak, that to keep out predators 1/2" is necessary.
Our soil is damp, so I didn't bury the HWC. I made an 18" apron all the way around, held down with landscaping pins. The grass grows through it and helps hold it down.
I attached it...