About these itemsThese bunkie boards provide solid extra support to prevent mattress sagging and improve back support, helping you enjoy a more restful night's sleep.Choose modular boards that come in connectable pieces for flexible customization or foldable boards that unfold when needed and fold away for convenient storage.Modular boards use thick 1.5 in / 38 mm wood planks for sturdy, long-lasting support. Foldable boards are made from 0.4 in / 10 mm pine plywood connected by strong straps designed for durability and excellent ventilation.Modular bunkie boards feature tear-resistant, breathable 200D Oxford fabric to keep the area fresh and dry. Foldable models have webbing straps with ventilation gaps, ideal for humid climates or moisture-sensitive environments like baby cribs or storage beds.Available in Twin, Full, Queen, and King sizes, these bunkie boards fit standard beds and are perfect for bedrooms, dorms, rentals, guesthouses, and more.Key DifferencesDesign: Modular (connectable pieces) vs Foldable (webbing connected)Material: Heavy-duty wood planks (1.5 in thick) with Oxford fabric cover vs Pine plywood (0.4 in thick) with webbing strapsThickness: 1.5 in for modular, 0.4 in for foldableNumber of Pieces: Modular sets vary (2, 4 pieces), foldable sets come with 8 connected piecesWeight: Modular sets weigh 8.85 to 39.46 lbs; foldable sets weigh 8.45 to 12.10 kgColor: Gray for modular, Natural Wood for foldableSpecificationsItem Model Numbers: CB001, CB002, CB003, CB004 (Modular); CB005, CB006 (Foldable)Sizes: Twin, Full, Queen, KingAssembly Thickness: 1.5 in (38.1 mm) modular; 0.4 in (10.16 mm) foldableConnection Method: 200D Oxford cloth covering (modular), webbing connection (foldable)Product Weight: 8.85 lbs to 39.46 lbs modular; 8.45 kg to 12.10 kg foldableProduct Dimensions (L x W x H):Modular: Ranges approx. 74.8 x 52.36 x 1.5 in (Twin/Full) to 78.74 x 74.02 x 1.5 in (King)Foldable: 70.87 x 51.18 x 0.394 inPackage ContentModular Sets: 32 or 64 self-tapping screws, instruction manualFoldable Sets: Instruction manualFabric