Increase the longevity of your mattress with the Classic Brands Attached Wood Bed Support Slats/ Bunkie Board. Made of solid spruce wood, this piece is a perfect replacement for damaged or broken slats. It transforms a regular bed into a platform bed and prevents mattress sagging. Simply select the size you need. Dimensions: Twin: 75L x 39W x 2.5H in. Full: 75L x 54W x 2.5H in. Twin XL: 80L x 39W x 2.5H in. Queen: 80L x 60W x 2.5H in. Classic Brands Located in Jessup, Maryland, Classic Brands has developed as a leader in all things sleep-related since 1971. They're dedicated to creating the finest mattresses using innovative design and craftsmanship, and as a result have made themselves a name as the most comfortable, restorative mattresses available.