OPJ":24z1i3fe said:Paul, the grooves were about 6mm deep (IIRC) and the panels cut to fit inside them - yes, they were assembled together with the box sides before parting the lid.
Did you rebate the edges, as you did with the bottom?
Yup, rebated the outside edge of the top so the top slots into the rebates in the sides.
I wanted the top to be flush rather than below the top surface of the sides, but didn't want any end-grain showing. Looks like I chose the most difficult thing to make (definately not intentionally!)