The key to this repair is to get the glue all over the inside of the split without causing more damage.
Lay a piece of yarn or cotton string on some wax paper and saturate the center with a good quality wood glue.
Leave the ends of the string dry so you have something to hold on to while you're working.
Run the string up inside of the split area and then back and forth along the length to saturate the inside of the rail with the glue.
Once you've covered the area, clamp the entire length of the repair to hold it together while the repair dries.
You can use little squeeze clamps or put a flat piece of wood on each side of the repair and secure it with a "C" clamp.
If excess glue squeezes out of the repair, wipe it with a damp cloth.
An easy fix that will make that chair as strong as ever! I'm Mrs. Fixit and it's just that simple!
