Glue the sheets together--I use Titebond 'cause I think it is easier to sand than CA. Sand the sheets when the glue is dry as it is amost impossible to sand smooth when glued to the ribs.

[>:]I then cut to slightly over size to take into account rib curvature. I wet it with a mix of 1/3rd ammonia and 2/3rd water, tape and pin the sheeting into place, and let dry over night. I know that ammonia isn't really supposed to help but it helps me--at least in my head! That helps with the curves, especially the compound ones.

The next day I trim the sheeting to size, glue it down with thick CA or Titebond, pin and tape, and let the glue cure. Sand, turn the jig over, and do the bottom the same way.

[sm=stupid.gif]If the bottom is flat the ammonia and water usually isn't necessary. With an undercamber, I go through the water, ammonia, tape, pins, and drying routine.

Bill