How can I add an upper rack? Drill?

[floridasmoke1]

I have the small Davy Crockett pellet smoker. I'd like to add another rack above the current grates.

Is there something I could attach inside like four little holders to hold another grate? I could always just drill in but then that adds four holes where smoke could escape. Could I put some sort of insulation around the inside or outside of the four holes?

 

[cmayna]

How air tight is this smoker? I see no problem drilling 4 new holes as long as they are filled with bolts and nuts. Is the smoker insulated (inner and outer wall)? 

 

[joe black]

I see no problem drilling holes. If you are worried about leakage, get some teflon washers. Another method would be to put some legs on the top shelf and let it sit on the one below. I believe Lone Star does theirs that way.