We sometimes get asked if there is some type of barrier between the laying and collection areas of the Best Nest Box to prohibit the hens from accessing and cracking/eating the eggs after they have rolled away.Our box does have a piece of angled metal (3 5/8" depth) to make it more difficult for the hens to access the collection area.  We do not have a curtain or other barrier because our testing (using video cameras) revealed that such a barrier does not stop the hens from accessing the collection area.  They simply push right through any curtain.  Also, a curtain or other barrier can negatively impact how eggs roll away by slowing down and sometimes stopping the egg before it's left the laying area and made it in to the collection area.