The dimensions for Avery large capacity binders are:
3” – 11.79” from spine to open end
4” – 12.24” from spine to open end
5” – 12.15” from spine to open end
To see Avery Large Capacity Binders, visit: https://www.avery.com/products/binders?filters=ringSize_3%22%20Binders,4%22%20Binders,5%22%20Binders