Please look over the pictures and ask questions when needed. 13 5/8" in overall diameter and 12" diameter floor opening. The item "Antique Cast Iron 13 5/8 Round Floor Register Heat Grate Decorative Vent 5157-15" is in sale since Friday, November 27, 2015. This item is in the category "Antiques\Architectural & Garden\Hardware\Heating Grates & Vents". The seller is "nysalvage" and is located in Oneonta, New York.This item can be shipped to United States, to Canada, to United Kingdom, to Australia, ZA, to Ireland, to Mexico, to New Zealand, SG, AE, MY, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, GR, PT, CY, SI, to Japan, SE, KR, ID, to Taiwan, to Belgium, to France, to Hong Kong, to Netherlands, PL, to Spain, to Italy, to Germany, to Austria, IL, PH, NO, SA, UA, QA, KW, BH, HR, TR, CL, CO, CR, DO, PA, TT, GT, SV, HN, JM.