Thread: Box making

HI All

looking for some advise. I tried making a wooden box recently (simple you say) so i went about it by making the box using biscuits, glued and nailed a plywood top and bottom, then thought i could just slice through at the appropriate spot with the triton set in ripping mode,

Problem is that the saw as it touched the timber kicks slightly enough to make the cut through the box not exactly straight enough to make the lid sit nicely on the base.

What is the best way to do this or should i be using some sort of flat plate to find the hight points on both the base and lid and planing flat as possible?

Any advise would be appreciated

Adrian