This base is solid, no moving parts once assembled. The support system is all metal and has been tested to 1200 lbs. Measuring 15" from the floor, the Goliath bed base allows for plenty of underbed storage and a perfect seating height. Give a European flair wth the Goliath Bed Base which will continue to look fresh and in style after many years of service. No wood parts to scratch or chip. No plastic parts that come apart, just quality steel. Sizes are Twin, Twin XL, Full, Full XL, Queen, King, and Hotel King.