lapstrake planking

adkrover

Curious about Wooden Canoes
.'m planking a decorative hull lapstrake style using clear pine. I cannot seem to clinch tack the laps without splitting the planking. I am clamping the lap and using a bucking bar to roll over/clinch tacks. Before the head of the tack even gets flush with the planking most of the planks are cracking. Using about 3/16" planking.
 
Maybe a slightly larger hole? Pine splits pretty easily. Since it doesn't need to be watertight, there is no reason to not over-bore it.
 
couple of pics of first 6 planks ect;

P2191604.jpg

P2191605.jpg
 
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