Like us on Facebook-Ultra Durable, "Kid Tough" Solid Pine Construction--3-Stage Protected Pine Dark Stain Lacquer Finish--Bunk Bed Fits Twin Mattress on Both Top & Bottom--Bunk Bed Dimensions: 100"L x 43"W x 60"H--Trundle Unit Accommodates Twin Size Mattress--Variety of Matching Pieces Are Shown Below-The "Constellations" Collection