With most crafters using 100# cardstock as their heavy weight choice, 130# is significantly heavier. This is great for when you need something thicker.
For your THICKEST choice, we also carry 160# (see separate listing). This is a lightweight board. You should not plan to fold it, as it is really too thick. I am asking my watercolorist to test it with stamping and watercolor….stay tuned for the results!