Sweep all surfaces of the gazebo thoroughly to remove any dust, dirt or debris. If needed, spray down the gazebo surfaces to clean any stubborn dirt or debris. Allow it to dry before proceeding.
Sand any rough areas of the gazebo to create a smooth surface. Sweep away any dust particles before proceeding.
Apply two coats of primer to the gazebo using the paint rollers and brushes. If the grain still shows through, continue to apply primer until the grain is no longer visible. Allow the primer to dry fully.
Paint all of the gazebo with the exterior latex paint except for the floor of the gazebo, which you should paint with the exterior floor paint. Apply at least two coats of paint to all areas of the gazebo.