1. A large inventory
Ideally, you want to avoid going to many different stores to find all of the marine supplies you are looking for. You need to find a store that has an inventory that is large enough so it includes pretty much anything that you are going to need for your adventures on the water.
2. Can they special order items for you?
There will eventually be a product you are looking for that the store does not have in stock. For example, you might be interested in a specific brand of boat dock building supplies. You are not willing to settle for a different brand. In this case, will the store be able to special order the exact type of supplies that you want? It is always nice to find a store that will be able to get the products that you are looking for if they happen to be out of stock. Not all stores get involved in special ordering products. Therefore, you should ask them in advance.
3. Customer service
The quality of customer service that you will find at some marine product stores will vary greatly. There might be a time when you need to buy an item that you do not know much about. In this case, it will be helpful if someone who works at the store could give you some advice about which brand to buy. You might also need some instruction about how to use the product in question. An employee of the marine products store should assist you and give you proper instruction. This will ensure that you have a complete understanding of the product before you buy it. You should accept nothing less than the best when it comes to customer service.