Can you make them for outdoor/patio use?

Yes, certainly. We do make our sofa cushions with both indoor and outdoor options. Our outdoor sofa cushions are constructed completely differently from our indoor sofas. They are covered with outdoor fabrics that are water-repellent and water-resistant. The water will bead on the fabric and slide off. The bottoms of the outdoor versions are upholstered in a mesh fabric that is breathable and will help drainage and void moldy foam. We switch the inner foams with the mildew resistant, acoustical performance Dacron outdoor foams & quick drying Dacron wraps. The original wooden structures inside are replaced with stainless steel mechanisms. This will ensure there won't be anything rotten, fungus, or mold inside from the humidity of the weather.