Strong & sturdy steel construction with foam padded tape makes this bed frame durable. Heavy duty bed legs and slats are made of widened and thickened steel to provide exnt support and prevent sagging, noise, and shaking for a good night sleep. Strong Mattress Support: â Strong mattress support with 11 steel slats not only give stability and level support but also help prevent mattress from sagging and enhance mattress life, without the need for a box spring. Seamless single piece design for legs. No Joints In Legs makes this bed frame more stable.