I knew that if the bottles were safely held in a group that could be lifted and where individual bottles could be accessed, time could be shaved from bottling. At the end of the sanitizing rinse the bottles need to be in the draining position too.
In this composite image you can see the top, side, bottom and two shots of the porter loaded with bottles. The design is primarily a board with holes evenly distributed. For the hole spacing dimensions I just put some bottles onto the board and discovered a comfortable spacing. Hole size came down to the largest wood bit I had lying around about 1.5 inches. The remainder of the structure creates a platform to both lift and keep the board with holes from warping under load. I used a bit of garden hose for the handles because it was lying around after the counter flow project. There is a 3/4 inch PVC pipe that runs the length of the porter to keep the bottles from shifting during transport.
Cheers, Happy brewing!