Frame crafted of solid kiln-dried hardwood Base is forged of metal and hammered by hand Forged Brass finish is crafted of brass; Forged Bronze finish is crafted of patinated brass; Forged Pewter finish is crafted of stainless steel Slat-style bed; requires mattress and box spring A low-profile foundation (sold separately) is recommended for use with a foam-based mattress King and Cal King bed frames are compatible with our FreshBed™ Sleep System This bed frame accommodates our Reverie® Adjustable Base. Base will not be visible above side rails. This bed frame also accommodates adjustable bases other than Reverie. Please carefully check dimensions of your adjustable base to ensure that it will fit. The bed frame's inner side rails that support the slats or platform are removable. Please note that our delivery team is unable to install this item with adjustable bases other than our Reverie Adjustable Base. Contact us at 800.762.1005 for information about compatibility with other bases. Assembly provided upon delivery This item is artisan crafted with meticulous care. Given its handmade and hand-finished nature, variations in the marble or metal work are to be expected and celebrated. Each item is unique and no two are exactly alike. Dust with a feather duster or wipe with a clean, dry cloth Wipe metal with a soft, dry cloth; avoid the use of harsh chemicals or abrasive cleaning materials. Avoid direct sunlight and heat to protect the finish.