What is back-to-back strut channel?

Back-to-back strut channel is made by joining two strut channels back to back. It is also called double strut channel.
This design improves rigidity and load capacity. It is suitable for heavy-duty support frames, uprights, columns, solar mounting structures, pipe racks, gantry frames, equipment stands and industrial framing systems. Professional strut suppliers describe back-to-back channels as useful where stronger, more stable support is required.