Absolutely, we do. Our planter box factory specializes in slim, narrow designs created specifically for balconies, railing edges, and other compact outdoor spaces. Unlike traditional bulky planters, our slim profile is engineered to maximize planting volume while minimizing footprint — typically ranging from just 15 to 30 centimeters in width, depending on your depth and length needs. Because we control the entire manufacturing process, we can customize height, drainage, material, and color to match your balcony’s exact dimensions and aesthetic. We offer corrosion-resistant galvanized steel, powder-coated aluminum, and UV-stabilized composite options, all of which are lightweight yet durable enough to withstand wind and weather. If you have a particularly tight corner or a narrow railing, we can also produce tapered or L-shaped designs that hug the wall without wasting a centimeter. Every slim planter includes built-in overflow drainage, elevated feet for air circulation, and optional self-watering inserts to reduce maintenance. So whether you want to grow herbs, succulents, or trailing flowers along a narrow strip, our factory can make a sleek, custom-fit planter box that turns your balcony into a lush, organized retreat — without sacrificing valuable floor space.