Hello,
Log in to your WordPress dashboard and navigate to “Products” -> “Attributes”.
Create a new attribute called “Weight” or use an existing one if available.
Add the weight terms as attributes options. For example, you can add options like “0-5 lbs”, “5-10 lbs”, “10-15 lbs”, etc. Save the changes.
Then go to Appearance > Widget > and add the woodmart woocommerce layered nav in the shop page widget area and select the attributes weight.
https://ibb.co/RNph0SJ
Best Regards.