For "real" servers and anything containing HDDs, definitely. But for a switch, some 1U el cheapo half-depth server and a power rail, the particleboard is suffic

For "real" servers and anything containing HDDs, definitely. But for a switch, some 1U el cheapo half-depth server and a power rail, the particleboard is sufficient. But one-time use only, the holes you drill into it wear out when reused.