{"title":"Blocks","description":"\u003cp data-start=\"178\" data-end=\"486\"\u003eDiscover our range of high-quality concrete blocks suitable for a wide range of building and construction projects. From lightweight thermal blocks to heavy-duty dense blocks and specialist foundation blocks, our selection provides reliable strength and durability for both residential and commercial builds.\u003c\/p\u003e","products":[{"product_id":"insulite-standard-concrete-block","title":"Insulite Standard Concrete Block","description":"\u003cp\u003eInsulite Standard blocks are versatile medium-density concrete blocks designed for a wide range of building applications. Strong, durable and easy to work with, they are ideal for both structural and general construction work.\u003c\/p\u003e\n\u003cp\u003eManufactured using quality aggregates and including recycled materials, Insulite blocks offer a reliable and sustainable solution for modern building projects. Their standard texture finish provides an excellent surface for mortars, renders and plaster finishes.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eManufactured to \u003cstrong\u003eBS EN 771-3 standards\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMedium density aggregate block\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for \u003cstrong\u003einternal and external wall construction\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProvides a strong key for \u003cstrong\u003eplaster, render and mortar\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDurable and robust\u003c\/strong\u003e – accepts most standard fixings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eContains \u003cstrong\u003erecycled materials\u003c\/strong\u003e for improved sustainability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNon-combustible (Class A1 fire rating)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eInner leaf of external cavity walls\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInternal partition walls\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAcoustic separating walls\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBlock and beam floor infill\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFoundation walls below DPC (7.3N\/mm² and above)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBlock size:\u003c\/strong\u003e 440mm x 215mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAvailable thicknesses:\u003c\/strong\u003e 75mm, 100mm, 140mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompressive strengths:\u003c\/strong\u003e 3.6N\/mm², 4.2N\/mm², 7.3N\/mm², 10.4N\/mm²\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDensity:\u003c\/strong\u003e approx. 1450–1550 kg\/m³\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFire rating:\u003c\/strong\u003e Class A1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allisons Home and Garden","offers":[{"title":"Full Pack (72 Blocks)","offer_id":54317340623187,"sku":null,"price":113.4,"currency_code":"GBP","in_stock":true},{"title":"Each","offer_id":54317340655955,"sku":null,"price":1.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/4382\/5235\/files\/Screenshot2026-03-08at21.29.30.png?v=1773005380"},{"product_id":"dense-standard-concrete-blocks","title":"Dense Standard Concrete Blocks","description":"\u003cp data-start=\"35\" data-end=\"285\"\u003eDense Standard Concrete Blocks are strong, heavy-duty blocks designed for structural strength and durability. Their high density makes them ideal for load-bearing walls, foundations and applications where toughness and sound insulation are important.\u003c\/p\u003e\n\u003cp data-start=\"287\" data-end=\"614\"\u003eWith a standard texture finish that provides an excellent key for mortars, renders and plaster, dense blocks are widely used across both residential and commercial construction projects. They are suitable for use both \u003cstrong data-start=\"505\" data-end=\"548\"\u003eabove and below damp proof course (DPC)\u003c\/strong\u003e, making them a reliable choice for a wide range of building work.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"616\" data-end=\"632\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"633\" data-end=\"1002\"\u003e\n\u003cli data-section-id=\"1tubnn3\" data-start=\"633\" data-end=\"678\"\u003e\n\u003cp data-start=\"635\" data-end=\"678\"\u003eManufactured to \u003cstrong data-start=\"651\" data-end=\"676\"\u003eBS EN 771-3 standards\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"xnioom\" data-start=\"679\" data-end=\"736\"\u003e\n\u003cp data-start=\"681\" data-end=\"736\"\u003e\u003cstrong data-start=\"681\" data-end=\"712\"\u003eHigh-density concrete block\u003c\/strong\u003e for superior strength\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1yi7dnz\" data-start=\"737\" data-end=\"797\"\u003e\n\u003cp data-start=\"739\" data-end=\"797\"\u003eSuitable for \u003cstrong data-start=\"752\" data-end=\"795\"\u003eloadbearing and structural applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10yl266\" data-start=\"798\" data-end=\"843\"\u003e\n\u003cp data-start=\"800\" data-end=\"843\"\u003eExcellent \u003cstrong data-start=\"810\" data-end=\"841\"\u003esound insulation properties\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1tpc89g\" data-start=\"844\" data-end=\"896\"\u003e\n\u003cp data-start=\"846\" data-end=\"896\"\u003eIdeal surface for \u003cstrong data-start=\"864\" data-end=\"894\"\u003erender, plaster and mortar\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"oldp25\" data-start=\"897\" data-end=\"955\"\u003e\n\u003cp data-start=\"899\" data-end=\"955\"\u003e\u003cstrong data-start=\"899\" data-end=\"921\"\u003eDurable and robust\u003c\/strong\u003e – accepts most standard fixings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"s9ae2h\" data-start=\"956\" data-end=\"1002\"\u003e\n\u003cp data-start=\"958\" data-end=\"1002\"\u003e\u003cstrong data-start=\"958\" data-end=\"1000\"\u003eNon-combustible (Class A1 fire rating)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"ucz99x\" data-start=\"1004\" data-end=\"1028\"\u003eTypical Applications\u003c\/h3\u003e\n\u003cul data-start=\"1029\" data-end=\"1194\"\u003e\n\u003cli data-section-id=\"x0sia6\" data-start=\"1029\" data-end=\"1072\"\u003e\n\u003cp data-start=\"1031\" data-end=\"1072\"\u003eLoadbearing internal and external walls\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1vps2w8\" data-start=\"1073\" data-end=\"1101\"\u003e\n\u003cp data-start=\"1075\" data-end=\"1101\"\u003eInternal partition walls\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"s36ooy\" data-start=\"1102\" data-end=\"1132\"\u003e\n\u003cp data-start=\"1104\" data-end=\"1132\"\u003eFoundation walls below DPC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"2sx5sh\" data-start=\"1133\" data-end=\"1164\"\u003e\n\u003cp data-start=\"1135\" data-end=\"1164\"\u003eBlock and beam floor infill\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"fmpzyw\" data-start=\"1165\" data-end=\"1194\"\u003e\n\u003cp data-start=\"1167\" data-end=\"1194\"\u003eAcoustic separating walls\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1yl5694\" data-start=\"1196\" data-end=\"1214\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul data-start=\"1215\" data-end=\"1423\"\u003e\n\u003cli data-section-id=\"1bz6uxs\" data-start=\"1215\" data-end=\"1248\"\u003e\n\u003cp data-start=\"1217\" data-end=\"1248\"\u003e\u003cstrong data-start=\"1217\" data-end=\"1232\"\u003eBlock size:\u003c\/strong\u003e 440mm x 215mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1jxbn59\" data-start=\"1249\" data-end=\"1298\"\u003e\n\u003cp data-start=\"1251\" data-end=\"1298\"\u003e\u003cstrong data-start=\"1251\" data-end=\"1277\"\u003eAvailable thicknesses:\u003c\/strong\u003e 75mm, 100mm, 140mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"12mnwsi\" data-start=\"1299\" data-end=\"1352\"\u003e\n\u003cp data-start=\"1301\" data-end=\"1352\"\u003e\u003cstrong data-start=\"1301\" data-end=\"1327\"\u003eCompressive strengths:\u003c\/strong\u003e 7.3N\/mm² and 10.4N\/mm²\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"5smh29\" data-start=\"1353\" data-end=\"1393\"\u003e\n\u003cp data-start=\"1355\" data-end=\"1393\"\u003e\u003cstrong data-start=\"1355\" data-end=\"1367\"\u003eDensity:\u003c\/strong\u003e approx. 1850–2100 kg\/m³\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"rpm78z\" data-start=\"1394\" data-end=\"1423\"\u003e\n\u003cp data-start=\"1396\" data-end=\"1423\"\u003e\u003cstrong data-start=\"1396\" data-end=\"1412\"\u003eFire rating:\u003c\/strong\u003e Class A1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1430\" data-end=\"1614\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e \u003c\/p\u003e","brand":"Allisons Home and Garden","offers":[{"title":"Full Pack (72 Blocks)","offer_id":54317350453587,"sku":null,"price":113.4,"currency_code":"GBP","in_stock":true},{"title":"Each","offer_id":54317350486355,"sku":null,"price":1.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/4382\/5235\/files\/Screenshot2026-03-08at21.33.17.png?v=1773005607"},{"product_id":"armstart-foundation-blocks","title":"Armstart Foundation Blocks","description":"\u003cp data-start=\"31\" data-end=\"290\"\u003eArmstart Foundation Blocks are specially designed blocks used for constructing solid foundation walls below damp proof course (DPC). They provide a faster, simpler and more cost-effective alternative to traditional cavity wall construction below ground level.\u003c\/p\u003e\n\u003cp data-start=\"292\" data-end=\"485\"\u003eBy allowing solid foundation walls to be built in a single leaf, Armstart blocks reduce labour time, eliminate the need for wall ties and remove the risk of cavity collapse during construction.\u003c\/p\u003e\n\u003cp data-start=\"487\" data-end=\"636\"\u003eDesigned for strength and practicality on site, these blocks weigh under 20kg, making them safer and easier to handle during repetitive block laying.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"638\" data-end=\"654\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"655\" data-end=\"1082\"\u003e\n\u003cli data-section-id=\"1tubnn3\" data-start=\"655\" data-end=\"700\"\u003e\n\u003cp data-start=\"657\" data-end=\"700\"\u003eManufactured to \u003cstrong data-start=\"673\" data-end=\"698\"\u003eBS EN 771-3 standards\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1l9361k\" data-start=\"701\" data-end=\"763\"\u003e\n\u003cp data-start=\"703\" data-end=\"763\"\u003eDesigned specifically for \u003cstrong data-start=\"729\" data-end=\"761\"\u003efoundation wall construction\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10acmjl\" data-start=\"764\" data-end=\"819\"\u003e\n\u003cp data-start=\"766\" data-end=\"819\"\u003eCreates \u003cstrong data-start=\"774\" data-end=\"817\"\u003esolid foundation walls 250mm–350mm wide\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"14khm1r\" data-start=\"820\" data-end=\"874\"\u003e\n\u003cp data-start=\"822\" data-end=\"874\"\u003e\u003cstrong data-start=\"822\" data-end=\"862\"\u003eNo cavity wall construction required\u003c\/strong\u003e below DPC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1h24ekd\" data-start=\"875\" data-end=\"920\"\u003e\n\u003cp data-start=\"877\" data-end=\"920\"\u003e\u003cstrong data-start=\"877\" data-end=\"918\"\u003eNo wall ties or cavity filling needed\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1jlxybe\" data-start=\"921\" data-end=\"983\"\u003e\n\u003cp data-start=\"923\" data-end=\"983\"\u003eSuitable for soil conditions up to \u003cstrong data-start=\"958\" data-end=\"981\"\u003eDS-3 classification\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1af857h\" data-start=\"984\" data-end=\"1035\"\u003e\n\u003cp data-start=\"986\" data-end=\"1035\"\u003eBlocks weigh \u003cstrong data-start=\"999\" data-end=\"1033\"\u003eunder 20kg for easier handling\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"s9ae2h\" data-start=\"1036\" data-end=\"1082\"\u003e\n\u003cp data-start=\"1038\" data-end=\"1082\"\u003e\u003cstrong data-start=\"1038\" data-end=\"1080\"\u003eNon-combustible (Class A1 fire rating)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"ucz99x\" data-start=\"1084\" data-end=\"1108\"\u003eTypical Applications\u003c\/h3\u003e\n\u003cul data-start=\"1109\" data-end=\"1238\"\u003e\n\u003cli data-section-id=\"s36ooy\" data-start=\"1109\" data-end=\"1139\"\u003e\n\u003cp data-start=\"1111\" data-end=\"1139\"\u003eFoundation walls below DPC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"dowlsu\" data-start=\"1140\" data-end=\"1186\"\u003e\n\u003cp data-start=\"1142\" data-end=\"1186\"\u003eSupporting cavity walls above ground level\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"c399s3\" data-start=\"1187\" data-end=\"1238\"\u003e\n\u003cp data-start=\"1189\" data-end=\"1238\"\u003eResidential and commercial building foundations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1yl5694\" data-start=\"1240\" data-end=\"1258\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul data-start=\"1259\" data-end=\"1483\"\u003e\n\u003cli data-section-id=\"yveq2s\" data-start=\"1259\" data-end=\"1373\"\u003e\n\u003cp data-start=\"1261\" data-end=\"1289\"\u003e\u003cstrong data-start=\"1261\" data-end=\"1287\"\u003eBlock sizes available:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1292\" data-end=\"1373\"\u003e\n\u003cli data-section-id=\"d5u04e\" data-start=\"1292\" data-end=\"1317\"\u003e\n\u003cp data-start=\"1294\" data-end=\"1317\"\u003e300mm x 275mm x 140mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1q7vpto\" data-start=\"1320\" data-end=\"1345\"\u003e\n\u003cp data-start=\"1322\" data-end=\"1345\"\u003e350mm x 250mm x 140mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"yau1a5\" data-start=\"1348\" data-end=\"1373\"\u003e\n\u003cp data-start=\"1350\" data-end=\"1373\"\u003e350mm x 215mm x 140mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1zmjci\" data-start=\"1374\" data-end=\"1412\"\u003e\n\u003cp data-start=\"1376\" data-end=\"1412\"\u003e\u003cstrong data-start=\"1376\" data-end=\"1401\"\u003eCompressive strength:\u003c\/strong\u003e 7.3N\/mm²\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1l472en\" data-start=\"1413\" data-end=\"1453\"\u003e\n\u003cp data-start=\"1415\" data-end=\"1453\"\u003e\u003cstrong data-start=\"1415\" data-end=\"1427\"\u003eDensity:\u003c\/strong\u003e approx. 1450–1550 kg\/m³\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"rpm78z\" data-start=\"1454\" data-end=\"1483\"\u003e\n\u003cp data-start=\"1456\" data-end=\"1483\"\u003e\u003cstrong data-start=\"1456\" data-end=\"1472\"\u003eFire rating:\u003c\/strong\u003e Class A1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allisons Home and Garden","offers":[{"title":"Full Pack (72 Blocks)","offer_id":54317359628627,"sku":null,"price":113.4,"currency_code":"GBP","in_stock":true},{"title":"Each","offer_id":54317359661395,"sku":null,"price":1.58,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/4382\/5235\/files\/Screenshot2026-03-08at21.35.36.png?v=1773005745"},{"product_id":"ultralite-lightweight-concrete-block","title":"Ultralite Lightweight Concrete Block","description":"\u003cp data-start=\"161\" data-end=\"454\" class=\"PDq2pG_selectionAnchorContainer\"\u003eA lightweight, load-bearing aggregate concrete block designed for internal walls and the inner and outer leaves of cavity walls. Its low weight makes it easier to handle and cut, while providing enhanced thermal performance and a suitable surface for mortar, render and plaster.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"456\" data-end=\"471\"\u003eSpecifications:\u003c\/p\u003e\n\u003cul data-start=\"473\" data-end=\"692\"\u003e\n\u003cli data-section-id=\"bqu8ww\" data-start=\"473\" data-end=\"498\"\u003eSize: 440 × 215 × 100mm\u003c\/li\u003e\n\u003cli data-section-id=\"1bk2jxr\" data-start=\"499\" data-end=\"519\"\u003eStrength: 3.6N\/mm²\u003c\/li\u003e\n\u003cli data-section-id=\"1v9isox\" data-start=\"520\" data-end=\"562\"\u003eMaterial: Lightweight aggregate concrete\u003c\/li\u003e\n\u003cli data-section-id=\"100t5np\" data-start=\"563\" data-end=\"589\"\u003eFinish: Standard texture\u003c\/li\u003e\n\u003cli data-section-id=\"iwqhyw\" data-start=\"590\" data-end=\"628\"\u003eApproximate weight: 10.7kg per block\u003c\/li\u003e\n\u003cli data-section-id=\"ci3f54\" data-start=\"629\" data-end=\"659\"\u003eQuantity per pack: 72 blocks\u003c\/li\u003e\n\u003cli data-section-id=\"1n8plr8\" data-start=\"660\" data-end=\"692\"\u003eManufacturer: Thomas Armstrong\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allisons Home and Garden","offers":[{"title":"Full Pack (72 Blocks)","offer_id":54317318603091,"sku":null,"price":122.4,"currency_code":"GBP","in_stock":true},{"title":"Each","offer_id":54317318635859,"sku":null,"price":1.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/4382\/5235\/files\/ultralite-block-440x215x100mm.webp?v=1784128248"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/4382\/5235\/collections\/allisson_hero_images.png?v=1780596275","url":"https:\/\/allisonshomeandgarden.co.uk\/collections\/blocks.oembed","provider":"Allisons Home and Garden","version":"1.0","type":"link"}