I recently got a small live edge slab that was initially meant to be a charcuterie board, but I'm thinking of using it as the top of a foot stool instead. I'm planning to attach the legs with through tenons, but I'm struggling to figure out how to layout accurate lines for the mortises. I want to ensure everything is precise, but I'm not too experienced with centerline layout methods and can't find resources directed at furniture rather than timber framing. I'm also considering using a template for the layout but think it lacks the potential for skill-building. Any advice or resources for centerline layout in furniture making would be appreciated!
4 Answers
Really intrigued by this question! I'm also looking at shaping a natural log for a project. I plan to start from the center as well since all my mortises will align there. Starting with the slab and building the apron and legs to match seems like a good route. Can't wait to see what you come up with—post pictures when you start!
Using a template is definitely a viable option! You can easily make one from plywood or even construction paper, and using double stick tape or the painter's tape with super glue trick can hold it steady. Another idea is to utilize a framing square as a guide. You can strike a corner as a datum point and reference it for all your layout marks. This approach will save you from complicated calculations. You might also want to consider going vertical; clamping the work vertically and using a plumb bob can help you draw straight lines without worrying about edge references. You could even use a chalk line for marking. Just remember, if you need to find the center, hanging the workpiece can help with that too!
You could snap an ink line for the center and then measure out perpendicular lines from there. This would help in laying everything out more systematically. It's a straightforward way to get precise measurements without fussing over edges.
For an irregular shaped top, I would pick a spot for one leg that looks aesthetically pleasing and draw 90-degree lines based on that. By marking mortises in a square or appropriate pattern, you’ll create a nice layout. Just adjust if you go for different leg configurations, like triangles or rectangles, as that will require rethinking your measurements!

Thanks for the tips! The vertical method is definitely worth a try. I'm just a bit anxious about precision when marking lines. I'm considering developing my own technique with dividers for more accuracy.