This mid-sized foundation is the most popular platform solution we offer. A center wooden truss support crisscrosses with an L-brace support to eliminate bowing, provide support, transfer energy, and improve back support. All Maine Cottage Beds are designed in consideration of a low profile foundation. The 4" profile allows for a mid-range mattress thickness for a sleep that is not too soft and not too firm. Made of solid hardwood with a fabric-wrapped dust cover to protect the underside.