The Max and Lily Twin Xl over Queen Bunk Bed perfectly combines fun and function for a design. The knot-free, solid wood bunk bed frame adds superior strength and stability. This twin Xl over queen bunk bed for kids used a durable finish that is ideal for your clean and healthy kid s room. The bunk bed features tall, 14-inch guard rails, so the bunk bed safely fits standard mattress sizes up to 8 inches thick. A ladder with rounded edges offers comfortable, easy climbing. The versatile ladder can attach on either side of the bunk bed to fit your room perfectly. A queen size bed on the bottom and twin Xl size bed on the top give plenty of room for growing kids to stretch out and read or sleep. The slatted headboards and footboards and flush, color-matched hardware create a clean, modern look. With solid plywood slats and a metal support bar, each sleeping surface can support 400 lbs. of resting weight.