2. Source recycling centers or charities: Some resource recycling centers or charities will accept and sell donated second-hand furniture and shelves. You can contact your local recycling center or charity to see if there are any shelves that meet your purchase needs.
3. Second-hand furniture stores or shops: Some specialized second-hand furniture stores or shops may have the option to sell second-hand shelves. You can go to the local second-hand furniture store or shop for consultation.
4. Waste recycling bins: Some waste recycling bins may have second-hand shelves for sale. You can consult your local recycling station or waste recycling center.