Bakeware Dividers

Use box saw to make u-channels 1/4″ shorter than the shelf depth.

Run the edge of a drill bit along the ends of the u-channel to remove the burrs.

Drill holes at each end of the channel.

Twist the end of a drill bit lightly around the edge of the hole to remove the burrs.

Set the first channel where you want it, Clamp a guide board next to it, using a speed square to be sure it’s straight.

To prevent the channel from wobbling out of place, clamp a second board on the other side.

Make pilot holes, and then screw the u-channel into place.

Oops:

First channel wobbled.

not centered.

last channel in wrong  place.