· Unique Sturdy design - the frame encloses the mattress to prevent slipping with ample under-bed space.Item Dimensions : 82"L x 60"W x 12"H.Maximum weight recommendation:700 pounds· DURABLY ENGINEERED - Made of genuine solid wood with steel framework on the inside, this durable foundation will support many years of serious snoozing; twin size supports a maximum weight capacity of 350 lbs, while all other sizes can support up to 700 lbs· NO BOX SPRING NEEDED - Reliable and closely spaced wood slats are designed to support and extend the life of your latex, memory foam or spring mattress without the need for a box spring· EASY ASSEMBLY - All parts, tools and instructions are shipped straight to your door in one efficiently packed box for simple set-up that takes less than an hour· Worry-free 5 year limited warranty included; mattress sold separately