For any piece anticipated to experience large temperature and moisture
swings (I'm not sure I can imagine something more extreme than a storm
door), this makes a lot of sense to maximally manage the differential wood
expansion to prevent joint failure.
While it's not a storm door, I just did a glue-up last weekend of a couple
of small drawer enclosures that used dados to hold the drawer separator
boards, and I only glued one end of each joint (i.e., on the visible face;
this left the other end of the joint to float a bit in the provided space.
Therefore, I'll say I'm following the practice.
Pete
North of Seattle
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