Which Purple mattresses are compatible with the Purple Metal Platform? The Purple Metal Platform’s steel frame supports up to 2,000 pounds, making it a perfect option for every Purple mattress. Related articles How far apart can the slats be on my foundation or base? Can I use a headboard with the Purple Metal Platform? How do I install the headboard brackets to a smart adjustable base? Is the Purple Metal Platform compatible with decorative bed frames? What is the Purple Metal Platform return policy?