Artisan Breads Every Day - 100% Whole Wheat Hearth Bread

Still working through Peter Reinhart's Artisan Breads Every Day.

Since we usually eat whole wheat bread, I was looking forward to trying this recipe. I made this recipe exactly as written.
The flavor was excellent. The texture was also good. My only problem was that it flattened into very short loaf. I don't know if the picture shows it, but this loaf was barely an inch high!

I think my mistake lay in how I formed the loaf. I would prefer a loaf that would hold together better and raise up instead of out! The taste of this bread was good enough to deserve a retry.