{"version":"1.0","provider_name":"Warmzone Blog","provider_url":"https:\/\/www.warmzone.com\/blog","author_name":"admin","author_url":"https:\/\/www.warmzone.com\/blog\/author\/admin\/","title":"On Center (OC) | Warmzone Blog","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"5nYqqBWU1L\"><a href=\"https:\/\/www.warmzone.com\/blog\/glossary\/on-center-oc\/\">On Center (OC)<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.warmzone.com\/blog\/glossary\/on-center-oc\/embed\/#?secret=5nYqqBWU1L\" width=\"600\" height=\"338\" title=\"&#8220;On Center (OC)&#8221; &#8212; Warmzone Blog\" data-secret=\"5nYqqBWU1L\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.warmzone.com\/blog\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"The distance between items as measured from the centerline of one item to the centerline of the next. For example, floor joists that are placed 24\u2033 on center, measure 24\u2033 from the centerline of one joist to the centerline of the next. This measurement is used to determine which size of our RetroHeat product you&hellip;"}