Basic Weight Shipping is a very simple free plugin which allows you to set five levels of weight-based shipping fees for your products. Simply set the upper limit for each required level, with the fee for that weight range, and those fees will then be enabled.
If you require more complexity or want to have shipping rates automatically updated in near real time from your shipping provider, please check out our other Jigoshop Shipping extensions.
Important: This free plugin requires license activation to allow for automatic future updates. The free license key is provided with the plugin.