I'm building a set of mission/shaker style doors with simple T&G rail/stile connections and rebated, glued in 1/2 MDF panels.
I'm thinking I should make the rail tenons 1mm shorter than the 7mm depth of the grooves in the stiles, and similarly, make the MDF door panels 2mm shorter than the groove-to groove distance, to allow for a tight fit.
Is this a reasonable / common approach?
Another option I've considered is to ease all of the edges of the rails and stiles to show an intentional reveal. This has an advantage that one of the mating surfaces at the rail/stile joint can be slightly proud and it wouldn't show, i.e. less sanding.
Edit: I have changed my approach from above. The tongues shall be exactly the same as the grooves, the panels will be 1mm 'small'. I'll hand sand the tongues if I need to pull the shoulders tighter.
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