What are the expansion joint requirements for large PVC outdoor rectangular tables?

Large PVC outdoor rectangular tables are popular for their durability and weather resistance, but proper expansion joint design is crucial to prevent warping or cracking. PVC expands and contracts with temperature changes, so expansion joints must be strategically placed to accommodate these movements. Typically, joints should be spaced every 4-6 feet and filled with a flexible sealant to allow for thermal expansion. Additionally, the table's frame should use slotted screw holes or floating fasteners to avoid rigid constraints. Properly designed expansion joints ensure the table remains stable and functional in extreme heat or cold, extending its lifespan. Regular inspection and maintenance of these joints are also recommended to prevent long-term damage.