{"product_id":"rh-logic-400-office-chair-black-base","title":"RH Logic 400 Ergonomic Office Chair - Black Base","description":"\u003ch2\u003eThe RH Logic 400 is a truly all round office chair solution\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe RH Logic 400 provides excellent back support and is perfectly equipped for 24\/7 environments. The RH Logic 400 has a high backrest and also comes with an inflatable lumbar pump as standard. The Logic 400 is a superb example of Scandinavian office design that will fit seamlessly into a variety of workplace environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eRH Logic 400 Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e150kg (23.5 stone) rated gas lift\u003c\/li\u003e\n\u003cli\u003e2PP upright posture and active sitting technology\u003c\/li\u003e\n\u003cli\u003eSeat height and depth adjustment\u003c\/li\u003e\n\u003cli\u003eInflatable lumbar pump support\u003c\/li\u003e\n\u003cli\u003eAdjustable tilting resistance forwards and backwards\u003c\/li\u003e\n\u003cli\u003eBackrest height adjustment\u003c\/li\u003e\n\u003cli\u003eAn option of adding 8E Armrests - height, depth and width adjustable armrests\u003c\/li\u003e\n\u003cli\u003eAn option of adding a height and depth adjustable headrest\u003c\/li\u003e\n\u003cli\u003eBlack aluminium base\u003c\/li\u003e\n\u003cli\u003eFully upholstered seat and backrest\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAvailable in the \u003cstrong\u003e18 different colours\u003c\/strong\u003e in Select (Gabriel) Fabric\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eSelect is a classic woollen upholstery fabric with superior durability and excellent stretch. It adds an extra dimension of functionality and classic elegance to all kinds of furniture and is highly suitable for heavy use environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eIf you would like to order from the extended range of fabrics here are the options:\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCapture (Gabriel)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNexus (Camira)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eGaja Classis (Gabriel)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNote (Gabriel)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e24\/7+ (Camira)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSteelcut Trio 3 (Kvadrat)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePatina (Camira)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eComfort + (Gabriel)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSirdal and Sudal (GU)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePaloma Soft (Wollsdorf)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003eRH 2PP\u003c\/strong\u003e \u003cstrong\u003e(Two-Point-Principle)\u003c\/strong\u003e \u003cstrong\u003eErgonomics\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eThe technology in \u003cstrong\u003e2PP\u003c\/strong\u003e means that the body is exposed to a lot of variation and relief, even when you move, since the chair's basic settings remain unchanged this makes you able to do more and concentrate better.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRH Logic 400 environmental impact\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eThe RH Logic 400 chair has been tested and certified in accordance with \u003cstrong\u003e\u003ca href=\"http:\/\/www.rhchairs.co.uk\/office-chairs\/rh-logic-400300\/10\/143721\/GREENGUARD%20RH%20Logic.pdf\" target=\"_blank\"\u003eGREENGUARD Certification Programme\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMany components of the RH Logic 400 are made from recycled materials, RH's manufacturing processes use low energy technology.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFurther options on request:\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCastors for hard floors\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eExtra large seat\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCoat-hanger attached to the headrest\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eAs these chairs are made to order delivery is normally 4 to 6 weeks. We will inform you of the date of delivery prior to dispatch.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions (mm)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat Height:\u003c\/strong\u003e\u003cspan\u003e 410 - 530\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackrest Height With Lumbar Pump:\u003c\/strong\u003e\u003cspan\u003e 620\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackrest Width With Lumbar Pump:\u003c\/strong\u003e\u003cspan\u003e 440\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat Depth:\u003c\/strong\u003e\u003cspan\u003e 475 - 535\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat Width:\u003c\/strong\u003e\u003cspan\u003e 465\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArmrest Height Above Seat:\u003c\/strong\u003e\u003cspan\u003e 215 - 295\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note the images above aren't representative of every single variant available. For example, if you choose no arms on the right hand side of the page the image doesn't change to an RH Logic 400 with no arms.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFrequently asked questions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the RH Logic 400 and the RH Logic 300?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe primary difference is the backrest height. The RH Logic 400 features a high backrest (620mm) designed to provide support across the full length of the spine, including the shoulders. This makes it the preferred choice for taller users or those who require more comprehensive upper-back support. The Logic 300 uses a medium-back design but shares the same ergonomic movement technology.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the RH 2PP (Two-Point-Principle) support active sitting?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 2PP mechanism ensures that the chair's pivot points are perfectly synchronized with your body's natural joints at the hips and knees. This allows you to move freely and recline while the backrest maintains constant, upright support. By encouraging micro-movements, the chair helps maintain blood circulation and reduces fatigue during long shifts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the RH Logic 400 be used for 24-hour shift work?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The RH Logic 400 is specifically engineered and certified for 24\/7 use. It is built with high-specification components, including a reinforced aluminium base and a heavy-duty gas lift rated for 150kg (23.5 stone). For intensive environments, it also features exchangeable seat and backrest pads to extend the life of the chair.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I adjust the inflatable lumbar support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe inflatable lumbar pump is an integrated air cell in the backrest. You can manually adjust the firmness by using the hand pump located under the seat or on the side of the backrest. This allows you to fine-tune the support to the exact curve of your lower back, providing relief for musculoskeletal issues and back pain.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"14\"\u003eIs the black base more durable than the polished version?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe structural durability is identical; both are made from heavy-duty cast aluminium. The choice is purely down to maintenance and style preferences, with the black base being more forgiving in terms of visible wear and tear.\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eAlthough we sell on the internet we like to think that people buy from people so why not call us to discuss your needs. We love to talk and advice is free: \u003cstrong\u003e01473 807500.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"RH","offers":[{"title":"No Armrests \/ No Headrest","offer_id":51344670556491,"sku":"RH-LOG-400-1","price":774.0,"currency_code":"GBP","in_stock":true},{"title":"No Armrests \/ Height \u0026 Depth Adjustable Headrest","offer_id":51344670753099,"sku":"RH-LOG-400-7","price":842.0,"currency_code":"GBP","in_stock":true},{"title":"Height, Depth \u0026 Width Adjustable Armrests \/ No Headrest","offer_id":51344670589259,"sku":"RH-LOG-400-2","price":882.0,"currency_code":"GBP","in_stock":true},{"title":"Height, Depth \u0026 Width Adjustable Armrests \/ Height \u0026 Depth Adjustable Headrest","offer_id":51344670785867,"sku":"RH-LOG-400-8","price":950.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/0275\/6683\/files\/01VRWP_front-RS.jpg?v=1745531023","url":"https:\/\/lockwoodhume.co.uk\/products\/rh-logic-400-office-chair-black-base","provider":"LockwoodHume Office Environments","version":"1.0","type":"link"}