Our WPC square tubes are available in two classic specifications—50*50mm and 60*60mm—serving as ideal profiles for lightweight outdoor framework construction and creative landscape designs. Extruded from wood-plastic composite, they not only possess excellent compressive strength and screw-holding power but also feature waterproof, rot-proof, insect-resistant, and UV-resistant properties that outperform natural wood. The 50*50mm size is lightweight and agile, perfectly suited for outdoor planter frames, grape trellis beams, small pavilion supports, or courtyard partitions. The 60*60mm size offers greater structural stability, commonly used for top rails of fences, secondary beams of pergolas, or auxiliary supports for heavy-duty decking. The surface can undergo realistic wood grain embossing. Requiring no painting maintenance, they withstand sun and rain over the long term, providing a flexible, safe, and maintenance-free framework connection solution for outdoor architecture.