What are the expansion joint requirements for long WPC outdoor ottomans?

When designing or installing long WPC (Wood-Plastic Composite) outdoor ottomans, proper expansion joint planning is crucial to ensure longevity and structural integrity. WPC materials expand and contract with temperature and humidity changes, so expansion joints must be incorporated to prevent warping, cracking, or buckling.

Key requirements include:

1. Spacing: Allow 1/8 to 1/4 inch (3-6 mm) gaps between sections for thermal expansion.

2. Placement: Position joints at intervals of 8-12 feet (2.4-3.6 meters) for long ottomans.

3. Material Compatibility: Use flexible, weather-resistant sealants or spacers to maintain joint integrity.

4. Drainage: Ensure joints don’t trap water, which can accelerate degradation.

5. Fasteners: Use adjustable or slotted fasteners to accommodate movement.

Following these guidelines will help maintain the ottoman’s appearance and functionality in outdoor environments.