{"product_id":"gillespie-hollow-core-kiln-shelf-square-24-x-12-x-1","title":"Gillespie Hollow Core Kiln Shelf - Square 24\" X 12\" X 1\"","description":"\u003cp\u003eSemi hollow kiln shelves are easy on you back and easy on your kiln!\u003c\/p\u003e\n\u003ch2 class=\"font-claude-response-heading text-text-100 mt-1 -mb-0.5\"\u003eWeight Reduction\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body whitespace-normal break-words\"\u003eSemi-hollow shelves are approximately 25% lighter than conventional cordierite kiln shelves . For example, a 12 x 24 x 1″ solid shelf weighs 20.75 pounds while the same size hollow core shelf weighs only 12.3 pounds . This makes them much easier on your back when loading and unloading your kiln.\u003c\/p\u003e\n\u003ch2 class=\"font-claude-response-heading text-text-100 mt-1 -mb-0.5\"\u003eIncreased Strength\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body whitespace-normal break-words\"\u003eDespite being lighter, hollow shelves are much stronger for their weight  The I-beam structure between the hollow channels gives hollow core shelves extra strength making them warp and crack resistant  .\u003c\/p\u003e\n\u003ch2 class=\"font-claude-response-heading text-text-100 mt-1 -mb-0.5\"\u003eEnergy Efficiency\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body whitespace-normal break-words\"\u003eSince they have less material mass, they make your firings more energy efficient because less thermal mass means it takes less energy wasted on heating your kiln furniture . This can result in real cost savings over time, especially for studios that fire frequently.\u003c\/p\u003e\n\u003ch2 class=\"font-claude-response-heading text-text-100 mt-1 -mb-0.5\"\u003eSuperior Flatness\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body whitespace-normal break-words\"\u003eThe top and bottom of each shelf is ground to a perfect smooth, flat surface  , and they're resistant to warping even at high temperatures.\u003c\/p\u003e\n\u003ch2 class=\"font-claude-response-heading text-text-100 mt-1 -mb-0.5\"\u003eTemperature Rating\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body whitespace-normal break-words\"\u003eHollow core kiln shelves are rated for cone 10 temperature and suitable for both electric and gas kilns in oxidation or reduction atmospheres, though they're not recommended for raku or wood firing.\u003c\/p\u003e","brand":"HAMMILL \u0026 GILLESPIE","offers":[{"title":"Default Title","offer_id":62913906999667,"sku":"HGKS24121","price":60.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/corelite-rectangle-kiln-shelf.jpg?v=1776363227","url":"https:\/\/www.sheffield-pottery.com\/products\/gillespie-hollow-core-kiln-shelf-square-24-x-12-x-1","provider":"Sheffield Pottery Inc.","version":"1.0","type":"link"}