A dented outdoor sofa backrest can ruin the look and comfort of your patio furniture. Fortunately, there are several effective DIY methods to restore its shape.

1. Steam Treatment: For fabric or padded backrests, use a handheld steamer or iron (with a cloth barrier) to apply heat. The steam helps the fibers expand, often lifting minor dents.

2. Sun Exposure: Leave the sofa in direct sunlight for a few hours. Heat can cause materials like rattan or plastic to naturally regain their shape.

3. Stuffing Adjustment: If the backrest has removable cushions, check the stuffing. Fluffing or adding filler can eliminate dents caused by compression.

4. Wooden Frame Fix: For wooden frames, lightly dampen the dented area and place a cloth over it. Use a warm iron to encourage the wood fibers to swell back into place.

5. Reinforcement: For persistent dents, consider inserting a thin, flexible support (like plastic or metal strips) behind the backrest for added stability.

Prevent future dents by avoiding heavy impacts and storing cushions indoors during harsh weather. Regular maintenance keeps your outdoor sofa looking its best!