There is no one-size-fits-all answer to this question, as the best way to make a Costco gazebo will vary depending on the specific model and materials you use. However, some tips on how to make a Costco gazebo include following the instructions that come with the kit, using high-quality materials, and taking care to seal and waterproof the structure properly. With careful planning and execution, you can build a beautiful and functional Costco gazebo that will provide years of enjoyment.