Shipping By Weight Brackets

nopCommerce's "Shipping By Weight" is a bit confusing (see my post).  And additionally, it can't enforce a minimum charge if using "Use percentage:".   Brackets are easy to set up in Shipping Director:

You can even show the actual weight in the description if you like

"Weight = " + [$TotalWeight].ToString() + " lbs."  

Also, if you want to add a fixed cost to the per unit rate, then additionally at the bottom of the configuration page, in section Shipping Director Settings, put your fixed cost in theSurcharge: field.  E.g. To have a base rate of $5.00 the enter 5 in Surcharge field, and click Save button