What is the best bookcase material for a damp basement office?

For damp basement offices, steel shelving is the best performer due to its immunity to moisture-related swelling. If appearance is a priority, specify bookcases with moisture-resistant MDF (MR-MDF) substrates and fully sealed backs and bottoms. Avoid particle-board-based products in RH above 60%. OfficeFurniture2go.com can recommend moisture-resistant bookcase options — call 1-800-460-0858.