What are the effects of prolonged compression on the shape retention of plastic outdoor ottomans?

Plastic outdoor ottomans are popular for their lightweight design and weather resistance, but prolonged compression can impact their shape retention over time. When subjected to constant weight or pressure, the plastic material may gradually deform, leading to a loss of its original form. Factors such as material quality, thickness, and environmental conditions play a significant role in determining how well the ottoman resists deformation. High-density polyethylene (HDPE) and polypropylene (PP) tend to fare better, while thinner or lower-quality plastics may sag or warp more easily. To minimize shape loss, consider rotating the ottoman periodically, avoiding excessive weight, and storing it properly during harsh weather. Understanding these effects helps in choosing durable outdoor furniture that maintains its aesthetic appeal for years.