Twin Size 2 in 1 Daybed Frame with Pullout Trundle, Black uses the supplier-listed furniture details for home setup. Consists of a sofa bed and a rolling trundle for more sleeping space Trundle with 4 lockable rubber casters for stable and fixation Not only as a cozy daybed with trundle but. Installation guide. Listed weight detail is 53lbs. Twin Size 2 in 1 Daybed Frame with Pullout Trundle, Black follows supplier-listed product details. Twin Size 2 in 1 Daybed Frame with Pullout Trundle, Black follows supplier-listed product details. Key listed specifications include material: Medium carbon steel Mdf rubber Size of Sofa Bed 78"" x 40"" x 31""/ (L x W x H) Size of Trundle 70"" x 39"" (L x W) Sofa Bed's Height Above The Floor 14"" Trundle's Height Above The Floor 3"" Load Capacity of Sofa Bed 550lbs Load Capacity of Trundle 330lbs/ Suitable Twin Size of Mattress 39"" x 75""(L x W) Recommended Thickness 8"" weight: 53lbs.