{"v":"2.0","page_type":"product","title":"Extensions can be used to increase the door length for Size C Classic Series doors. Multiple extensions can be mounted back to back for longer areaway lengths. Extensions are available in five different lengths to allow for installation flexibility.","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"Bilco","href":"/python/html6/menu_brand_products/1000/20000/menu_brand_products_Bilco_1_95b35bd59c.html"},{"label":"EXT 24","href":null}],"content":{"product":{"mpn":"EXT 24","manufacturer":"Bilco","brand":"Bilco","brand_url":"/python/html6/menu_brand_products/1000/20000/menu_brand_products_Bilco_1_95b35bd59c.html","title":"Extensions can be used to increase the door length for Size C Classic Series doors. Multiple extensions can be mounted back to back for longer areaway lengths. Extensions are available in five different lengths to allow for installation flexibility.","description":"","attributes":[{"name":"Brand name","values":[{"value":"Bilco","url":"/python/html6/menu_attr_pair/1000/123000000/123529000/menu_attr_pair_Brandname_Bilco_1_533c9d304f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/123000000/123529000/menu_attr_pair_Brandname_Bilco_1_533c9d304f.html"},{"name":"Manufacturer name","values":[{"value":"Bilco","url":"/python/html6/menu_attr_pair/1000/59000000/59845000/menu_attr_pair_Manufacturername_Bilco_1_c74d992ad2.html"}],"name_url":"/python/html6/menu_attr_pair/1000/59000000/59845000/menu_attr_pair_Manufacturername_Bilco_1_c74d992ad2.html"},{"name":"Manufacturer","values":[{"value":"Bilco","url":"/python/html6/menu_attr_pair/1000/159000000/159363000/menu_attr_pair_Manufacturer_Bilco_1_8a9ce1c196.html"},{"value":"The BILCO Company","url":"/python/html6/menu_attr_pair/1000/90000000/90662000/menu_attr_pair_Manufacturer_TheBILCOCompany_1_79cd1e6688.html"}],"name_url":"/python/html6/menu_attr_pair/1000/159000000/159363000/menu_attr_pair_Manufacturer_Bilco_1_8a9ce1c196.html"},{"name":"AdultProduct","values":[{"value":"False","url":"/python/html6/menu_attr_pair/1000/135000000/135074000/menu_attr_pair_AdultProduct_False_1_c6441ece7c.html"}],"name_url":"/python/html6/menu_attr_pair/1000/135000000/135074000/menu_attr_pair_AdultProduct_False_1_c6441ece7c.html"},{"name":"Asin","values":[{"value":"B004Q0K6RW","url":"/python/html6/menu_attr_pair/1000/221000000/221125000/menu_attr_pair_Asin_B004Q0K6RW_1_8fb4f2bd80.html"}],"name_url":"/python/html6/menu_attr_pair/1000/221000000/221125000/menu_attr_pair_Asin_B004Q0K6RW_1_8fb4f2bd80.html"},{"name":"Autographed","values":[{"value":"False","url":"/python/html6/menu_attr_pair/1000/11000000/11389000/menu_attr_pair_Autographed_False_1_3dfa18ce7d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/11000000/11389000/menu_attr_pair_Autographed_False_1_3dfa18ce7d.html"},{"name":"Batteries_included","values":[{"value":"False","url":"/python/html6/menu_attr_pair/1000/180000000/180176000/menu_attr_pair_Batteriesincluded_False_1_6c2d2ef5f5.html"}],"name_url":"/python/html6/menu_attr_pair/1000/180000000/180176000/menu_attr_pair_Batteriesincluded_False_1_6c2d2ef5f5.html"},{"name":"Batteries_required","values":[{"value":"False","url":"/python/html6/menu_attr_pair/1000/91000000/91937000/menu_attr_pair_Batteriesrequired_False_1_87e9780f06.html"}],"name_url":"/python/html6/menu_attr_pair/1000/91000000/91937000/menu_attr_pair_Batteriesrequired_False_1_87e9780f06.html"},{"name":"Brand","values":[{"value":"Bilco","url":"/python/html6/menu_attr_pair/1000/72000000/72798000/menu_attr_pair_Brand_Bilco_1_f24e0cd12c.html"}],"name_url":"/python/html6/menu_attr_pair/1000/72000000/72798000/menu_attr_pair_Brand_Bilco_1_f24e0cd12c.html"},{"name":"Bullet_point","values":[{"value":"Baked on primer finish","url":"/python/html6/menu_attr_pair/1000/119000000/119968000/menu_attr_pair_Bulletpoint_Bakedonprimerfinish_1_89f5b0e2d2.html"},{"value":"Heavy gauge steel construction","url":"/python/html6/menu_attr_pair/1000/242000000/242037000/menu_attr_pair_Bulletpoint_Heavygaugesteelconstruction_1_57732a39e7.html"},{"value":"Supplied with complete installation instructions","url":"/python/html6/menu_attr_pair/1000/79000000/79665000/menu_attr_pair_Bulletpoint_Suppliedwithcompleteinstallationinstructio_1_df859fc81f.html"},{"value":"Used to increase the length of BILCO Size C basement doors","url":"/python/html6/menu_attr_pair/1000/78000000/78201000/menu_attr_pair_Bulletpoint_UsedtoincreasethelengthofBILCOSizeCbasemen_1_ec698c3a58.html"}],"name_url":"/python/html6/menu_attr_pair/1000/119000000/119968000/menu_attr_pair_Bulletpoint_Bakedonprimerfinish_1_89f5b0e2d2.html"},{"name":"ClassificationId","values":[{"value":"13398281","url":"/python/html6/menu_attr_pair/1000/179000000/179538000/menu_attr_pair_ClassificationId_13398281_1_6fd79a5bc8.html"}],"name_url":"/python/html6/menu_attr_pair/1000/179000000/179538000/menu_attr_pair_ClassificationId_13398281_1_6fd79a5bc8.html"},{"name":"Color","values":[{"value":"Red Primer","url":"/python/html6/menu_attr_pair/1000/105000000/105850000/menu_attr_pair_Color_RedPrimer_1_6262238791.html"}],"name_url":"/python/html6/menu_attr_pair/1000/105000000/105850000/menu_attr_pair_Color_RedPrimer_1_6262238791.html"},{"name":"DisplayName","values":[{"value":"Exterior Doors","url":"/python/html6/menu_attr_pair/1000/90000000/90829000/menu_attr_pair_DisplayName_ExteriorDoors_1_86ab9b1ff0.html"}],"name_url":"/python/html6/menu_attr_pair/1000/90000000/90829000/menu_attr_pair_DisplayName_ExteriorDoors_1_86ab9b1ff0.html"},{"name":"Height","values":[{"value":"1000","url":"/python/html6/menu_attr_pair/1000/182000000/182950000/menu_attr_pair_Height_1000_1_df0c91e8b6.html"},{"value":"500","url":"/python/html6/menu_attr_pair/1000/82000000/82433000/menu_attr_pair_Height_500_1_e800e4b696.html"},{"value":"75","url":"/python/html6/menu_attr_pair/1000/263000000/263862000/menu_attr_pair_Height_75_1_a0092a3e31.html"}],"name_url":"/python/html6/menu_attr_pair/1000/182000000/182950000/menu_attr_pair_Height_1000_1_df0c91e8b6.html"},{"name":"Identifier","values":[{"value":"0783446030045","url":"/python/html6/menu_attr_pair/1000/51000000/51693000/menu_attr_pair_Identifier_0783446030045_1_0c49a3d9e1.html"},{"value":"783446030045","url":"/python/html6/menu_attr_pair/1000/102000000/102570000/menu_attr_pair_Identifier_783446030045_1_a778e075d0.html"}],"name_url":"/python/html6/menu_attr_pair/1000/51000000/51693000/menu_attr_pair_Identifier_0783446030045_1_0c49a3d9e1.html"},{"name":"IdentifierType","values":[{"value":"EAN","url":"/python/html6/menu_attr_pair/1000/231000000/231760000/menu_attr_pair_IdentifierType_EAN_1_0a7a698752.html"},{"value":"UPC","url":"/python/html6/menu_attr_pair/1000/65000000/65206000/menu_attr_pair_IdentifierType_UPC_1_477407fdb7.html"}],"name_url":"/python/html6/menu_attr_pair/1000/231000000/231760000/menu_attr_pair_IdentifierType_EAN_1_0a7a698752.html"},{"name":"ItemClassification","values":[{"value":"BASE_PRODUCT","url":"/python/html6/menu_attr_pair/1000/174000000/174108000/menu_attr_pair_ItemClassification_BASEPRODUCT_1_21c06575b2.html"}],"name_url":"/python/html6/menu_attr_pair/1000/174000000/174108000/menu_attr_pair_ItemClassification_BASEPRODUCT_1_21c06575b2.html"},{"name":"ItemName","values":[{"value":"BILCO Basement Door Extension Panel - 24\" - Primer","url":"/python/html6/menu_attr_pair/1000/111000000/111820000/menu_attr_pair_ItemName_BILCOBasementDoorExtensionPanel24Primer_1_7766a64f33.html"}],"name_url":"/python/html6/menu_attr_pair/1000/111000000/111820000/menu_attr_pair_ItemName_BILCOBasementDoorExtensionPanel24Primer_1_7766a64f33.html"},{"name":"Item_display_weight","values":[{"value":"72.0","url":"/python/html6/menu_attr_pair/1000/158000000/158793000/menu_attr_pair_Itemdisplayweight_720_1_76d2e056ad.html"}],"name_url":"/python/html6/menu_attr_pair/1000/158000000/158793000/menu_attr_pair_Itemdisplayweight_720_1_76d2e056ad.html"},{"name":"Item_name","values":[{"value":"BILCO Basement Door Extension Panel - 24\" - Primer","url":"/python/html6/menu_attr_pair/1000/112000000/112527000/menu_attr_pair_Itemname_BILCOBasementDoorExtensionPanel24Primer_1_fe77e40665.html"}],"name_url":"/python/html6/menu_attr_pair/1000/112000000/112527000/menu_attr_pair_Itemname_BILCOBasementDoorExtensionPanel24Primer_1_fe77e40665.html"},{"name":"Item_package_quantity","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/127000000/127549000/menu_attr_pair_Itempackagequantity_1_1_10213d6c40.html"}],"name_url":"/python/html6/menu_attr_pair/1000/127000000/127549000/menu_attr_pair_Itempackagequantity_1_1_10213d6c40.html"},{"name":"Item_type_keyword","values":[{"value":"exterior-doors","url":"/python/html6/menu_attr_pair/1000/78000000/78761000/menu_attr_pair_Itemtypekeyword_exteriordoors_1_58049915f8.html"}],"name_url":"/python/html6/menu_attr_pair/1000/78000000/78761000/menu_attr_pair_Itemtypekeyword_exteriordoors_1_58049915f8.html"},{"name":"Item_weight","values":[{"value":"72.0","url":"/python/html6/menu_attr_pair/1000/181000000/181405000/menu_attr_pair_Itemweight_720_1_7c2ec67001.html"}],"name_url":"/python/html6/menu_attr_pair/1000/181000000/181405000/menu_attr_pair_Itemweight_720_1_7c2ec67001.html"},{"name":"Keyword","values":[{"value":"26-1126","url":"/python/html6/menu_attr_pair/1000/143000000/143024000/menu_attr_pair_Keyword_261126_1_2b4e878a02.html"}],"name_url":"/python/html6/menu_attr_pair/1000/143000000/143024000/menu_attr_pair_Keyword_261126_1_2b4e878a02.html"},{"name":"Link","values":[{"value":"https://m.media-amazon.com/images/I/41eAYU7jQIL._SL75_.jpg","url":"/python/html6/menu_attr_pair/1000/121000000/121292000/menu_attr_pair_Link_httpsmmediaamazoncomimagesI41eAYU7jQILSL75_1_e5b16db2a6.html"},{"value":"https://m.media-amazon.com/images/I/41eAYU7jQIL.jpg","url":"/python/html6/menu_attr_pair/1000/18000000/18883000/menu_attr_pair_Link_httpsmmediaamazoncomimagesI41eAYU7jQILjpg_1_90e913c9e0.html"},{"value":"https://m.media-amazon.com/images/I/51LQYM1Nw3L.jpg","url":"/python/html6/menu_attr_pair/1000/111000000/111479000/menu_attr_pair_Link_httpsmmediaamazoncomimagesI51LQYM1Nw3Ljpg_1_e918e956b3.html"},{"value":"https://www.amazon.com/gp/bestsellers/hi","url":"/python/html6/menu_attr_pair/1000/245000000/245482000/menu_attr_pair_Link_httpswwwamazoncomgpbestsellershi_1_868b2c8ced.html"},{"value":"https://www.amazon.com/gp/bestsellers/hi/13398281","url":"/python/html6/menu_attr_pair/1000/58000000/58195000/menu_attr_pair_Link_httpswwwamazoncomgpbestsellershi13398281_1_8f9c64c32c.html"}],"name_url":"/python/html6/menu_attr_pair/1000/121000000/121292000/menu_attr_pair_Link_httpsmmediaamazoncomimagesI41eAYU7jQILSL75_1_e5b16db2a6.html"},{"name":"Material","values":[{"value":"steel","url":"/python/html6/menu_attr_pair/1000/93000000/93780000/menu_attr_pair_Material_steel_1_e024ba1b29.html"}],"name_url":"/python/html6/menu_attr_pair/1000/93000000/93780000/menu_attr_pair_Material_steel_1_e024ba1b29.html"},{"name":"Memorabilia","values":[{"value":"False","url":"/python/html6/menu_attr_pair/1000/184000000/184136000/menu_attr_pair_Memorabilia_False_1_903cccc9ba.html"}],"name_url":"/python/html6/menu_attr_pair/1000/184000000/184136000/menu_attr_pair_Memorabilia_False_1_903cccc9ba.html"},{"name":"ModelNumber","values":[{"value":"EXT 24","url":"/python/html6/menu_attr_pair/1000/139000000/139917000/menu_attr_pair_ModelNumber_EXT24_1_e6aa29e84a.html"}],"name_url":"/python/html6/menu_attr_pair/1000/139000000/139917000/menu_attr_pair_ModelNumber_EXT24_1_e6aa29e84a.html"},{"name":"Model_number","values":[{"value":"EXT 24","url":"/python/html6/menu_attr_pair/1000/225000000/225650000/menu_attr_pair_Modelnumber_EXT24_1_9e29ea845f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/225000000/225650000/menu_attr_pair_Modelnumber_EXT24_1_9e29ea845f.html"},{"name":"Mpns","values":[{"value":"EXT 24","url":"/python/html6/menu_attr_pair/1000/49000000/49886000/menu_attr_pair_Mpns_EXT24_1_50a813bfd3.html"}],"name_url":"/python/html6/menu_attr_pair/1000/49000000/49886000/menu_attr_pair_Mpns_EXT24_1_50a813bfd3.html"},{"name":"PackageQuantity","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/23000000/23398000/menu_attr_pair_PackageQuantity_1_1_27a474ef3f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/23000000/23398000/menu_attr_pair_PackageQuantity_1_1_27a474ef3f.html"},{"name":"PartNumber","values":[{"value":"EXT 24","url":"/python/html6/menu_attr_pair/1000/7000000/7126000/menu_attr_pair_PartNumber_EXT24_1_1e3e6ca828.html"}],"name_url":"/python/html6/menu_attr_pair/1000/7000000/7126000/menu_attr_pair_PartNumber_EXT24_1_1e3e6ca828.html"},{"name":"Part_number","values":[{"value":"EXT 24","url":"/python/html6/menu_attr_pair/1000/47000000/47520000/menu_attr_pair_Partnumber_EXT24_1_e87af835a2.html"}],"name_url":"/python/html6/menu_attr_pair/1000/47000000/47520000/menu_attr_pair_Partnumber_EXT24_1_e87af835a2.html"},{"name":"ProductType","values":[{"value":"BUILDING_MATERIAL","url":"/python/html6/menu_attr_pair/1000/174000000/174987000/menu_attr_pair_ProductType_BUILDINGMATERIAL_1_fbb60ac7a4.html"}],"name_url":"/python/html6/menu_attr_pair/1000/174000000/174987000/menu_attr_pair_ProductType_BUILDINGMATERIAL_1_fbb60ac7a4.html"},{"name":"Product_description","values":[{"value":"Extensions are available to increase the door length of Classic Series Size C basement doors. Extensions are available in 6”, 12”, 18”, 24” and 30” lengths and two or more can be mounted back to back to increase the door length to virtually any size.","url":"/python/html6/menu_attr_pair/1000/155000000/155881000/menu_attr_pair_Productdescription_Extensionsareavailabletoincreasethedoorlen_1_46cf72e504.html"}],"name_url":"/python/html6/menu_attr_pair/1000/155000000/155881000/menu_attr_pair_Productdescription_Extensionsareavailabletoincreasethedoorlen_1_46cf72e504.html"},{"name":"Product_site_launch_date","values":[{"value":"2011-02-28T20:04:45.750Z","url":"/python/html6/menu_attr_pair/1000/100000000/100231000/menu_attr_pair_Productsitelaunchdate_20110228T200445750Z_1_044b041854.html"}],"name_url":"/python/html6/menu_attr_pair/1000/100000000/100231000/menu_attr_pair_Productsitelaunchdate_20110228T200445750Z_1_044b041854.html"},{"name":"Rank","values":[{"value":"1272880","url":"/python/html6/menu_attr_pair/1000/108000000/108921000/menu_attr_pair_Rank_1272880_1_64665eee3c.html"},{"value":"1825","url":"/python/html6/menu_attr_pair/1000/56000000/56838000/menu_attr_pair_Rank_1825_1_4a939ec11d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/108000000/108921000/menu_attr_pair_Rank_1272880_1_64665eee3c.html"},{"name":"StrippedMpns","values":[{"value":"EXT24","url":"/python/html6/menu_attr_pair/1000/218000000/218302000/menu_attr_pair_StrippedMpns_EXT24_1_ab3fc4cffd.html"}],"name_url":"/python/html6/menu_attr_pair/1000/218000000/218302000/menu_attr_pair_StrippedMpns_EXT24_1_ab3fc4cffd.html"},{"name":"Title","values":[{"value":"Exterior Doors","url":"/python/html6/menu_attr_pair/1000/254000000/254257000/menu_attr_pair_Title_ExteriorDoors_1_875045c980.html"},{"value":"Tools & Home Improvement","url":"/python/html6/menu_attr_pair/1000/188000000/188290000/menu_attr_pair_Title_ToolsHomeImprovement_1_f6704bfe0f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/254000000/254257000/menu_attr_pair_Title_ExteriorDoors_1_875045c980.html"},{"name":"TradeInEligible","values":[{"value":"False","url":"/python/html6/menu_attr_pair/1000/5000000/5271000/menu_attr_pair_TradeInEligible_False_1_25846a63db.html"}],"name_url":"/python/html6/menu_attr_pair/1000/5000000/5271000/menu_attr_pair_TradeInEligible_False_1_25846a63db.html"},{"name":"Type","values":[{"value":"ean","url":"/python/html6/menu_attr_pair/1000/253000000/253381000/menu_attr_pair_Type_ean_1_ca8a058b84.html"},{"value":"upc","url":"/python/html6/menu_attr_pair/1000/25000000/25819000/menu_attr_pair_Type_upc_1_b8e0fca956.html"}],"name_url":"/python/html6/menu_attr_pair/1000/253000000/253381000/menu_attr_pair_Type_ean_1_ca8a058b84.html"},{"name":"Unit","values":[{"value":"pounds","url":"/python/html6/menu_attr_pair/1000/148000000/148518000/menu_attr_pair_Unit_pounds_1_62a7fa2d77.html"}],"name_url":"/python/html6/menu_attr_pair/1000/148000000/148518000/menu_attr_pair_Unit_pounds_1_62a7fa2d77.html"},{"name":"Variant","values":[{"value":"MAIN","url":"/python/html6/menu_attr_pair/1000/40000000/40436000/menu_attr_pair_Variant_MAIN_1_b26e0d62c8.html"}],"name_url":"/python/html6/menu_attr_pair/1000/40000000/40436000/menu_attr_pair_Variant_MAIN_1_b26e0d62c8.html"},{"name":"WebsiteDisplayGroup","values":[{"value":"home_improvement_display_on_website","url":"/python/html6/menu_attr_pair/1000/196000000/196052000/menu_attr_pair_WebsiteDisplayGroup_homeimprovementdisplayonwebsite_1_a2bd1669a9.html"}],"name_url":"/python/html6/menu_attr_pair/1000/196000000/196052000/menu_attr_pair_WebsiteDisplayGroup_homeimprovementdisplayonwebsite_1_a2bd1669a9.html"},{"name":"WebsiteDisplayGroupName","values":[{"value":"Home Improvement","url":"/python/html6/menu_attr_pair/1000/2000000/2586000/menu_attr_pair_WebsiteDisplayGroupName_HomeImprovement_1_f5bc07f771.html"}],"name_url":"/python/html6/menu_attr_pair/1000/2000000/2586000/menu_attr_pair_WebsiteDisplayGroupName_HomeImprovement_1_f5bc07f771.html"},{"name":"Weight","values":[{"value":"72.0","url":"/python/html6/menu_attr_pair/1000/197000000/197516000/menu_attr_pair_Weight_720_1_b7e75ba82b.html"}],"name_url":"/python/html6/menu_attr_pair/1000/197000000/197516000/menu_attr_pair_Weight_720_1_b7e75ba82b.html"},{"name":"Width","values":[{"value":"1000","url":"/python/html6/menu_attr_pair/1000/85000000/85183000/menu_attr_pair_Width_1000_1_3bb9579044.html"},{"value":"500","url":"/python/html6/menu_attr_pair/1000/61000000/61456000/menu_attr_pair_Width_500_1_2675d694cc.html"},{"value":"75","url":"/python/html6/menu_attr_pair/1000/211000000/211376000/menu_attr_pair_Width_75_1_1e3c47751f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/85000000/85183000/menu_attr_pair_Width_1000_1_3bb9579044.html"}],"images":[],"distributors":[{"name":"Home Depot","sku":"203623742","url":"http://www.homedepot.com/p/Bilco-Classic-24-in-Primed-Steel-Cellar-Door-Extension-EXT-24/203623742","pricing":[{"quantity":1,"price_usd":280.0}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":null,"image":"http://www.homedepot.com/catalog/productImages/65/5e/5e6a9130-85f1-4f72-981e-6e16dda942c8_65.jpg"}],"amazon":{"available":true,"products":[{"asin":"B004Q0K6RW","title":"BILCO Basement Door Extension Panel - 24\" - Primer","brand":"Bilco","image":"","url":"https://www.amazon.com/dp/B004Q0K6RW?tag=atariguidz09-20","description":"Extensions are available to increase the door length of Classic Series Size C basement doors. Extensions are available in 6”, 12”, 18”, 24” and 30” lengths and two or more can be mounted back to back to increase the door length to virtually any size.","features":["Baked on primer finish","Used to increase the length of BILCO Size C basement doors","Heavy gauge steel construction","Supplied with complete installation instructions"]}]},"metadata":{"generated_date":"2026-09-16","last_updated":"2026-09-16","data_sources":["Home Depot","Amazon"],"completeness":0.9,"version":"1.2"}}},"pagination":null,"nav":{"home":"/python/html6/index.html","brands":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html","parts":"/python/html6/menu_part_index/menu_part_index_parts_909e6bf0ca.html","attributes":"/python/html6/menu_attr_index/menu_attr_index_attributes_d7f67a250d.html"}}