This is an antique grate or vent. I've always viewed the heating and airconditioning vents in newer houses as eyesores. If you were to check Kathryn McNerney's book, Antique Iron Identification and Values, a smaller grate is valued at $315-$325. This one measures approximately 13.5 by 9.5". Buyer to pay actual shipping and insurance. Please view our other listings.