Dick is right on with the solid door. I bought a solid mahagony door ages ago and went to the local thrift shop and found a buffet table to set it on and it works great as pins go in easy and stay till you want them out. I also had the room down the one wall to lay solid doors I got for free from a motel they were remodeling and laid those end to end and then put 1/2" mahogany on top of that, works like a charm.