Solid Pine Twin Bed with Trundle White ALL SOLID selected real pine wood(No Particleboard/No plywood/No engineered wood/No veneer) FOR STANDARD TWIN MATTRESS SIZE ( 39" x 75" ) THE TRUNDLE ALSO WORKS WITH STANDARD TWIN MATTRESS SIZE (UPTO 7" THICK) BOX SPRING IS NOT REQUIRED DIMENSIONS: 83" LENGHT X 43"1/4 WIDTH X 46"1/4 HEIGHT