{"product_id":"hardrock-chair","title":"Hardrock Chair by Smirthwaite – Heavy-Duty Postural Chair for Rocking Behaviors","description":"\u003ch3 style=\"font-family: Montserrat, Arial, sans-serif; margin-bottom: 12px;\"\u003eHardrock Chair by Smirthwaite – Heavy-Duty Postural Seating for Children and Adults Who Rock\u003c\/h3\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003eThe \u003cstrong\u003eHardrock\u003c\/strong\u003e is the chair Smirthwaite builds for one specific job: giving a child, teen, or adult who rocks repetitively a seat that won't tip, won't loosen, and won't wear out. Many standard classroom and therapy chairs simply can't take continuous, forceful rocking. The Hardrock is built to, with a heavy solid-wood frame, an anti-thrust seat and anterior pad that keep the pelvis back where it belongs, and a low, wide base that stays planted. The result is a defined, secure personal space where someone who seeks movement can still settle, focus, and take part.\u003c\/p\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003eIt is a favorite in special-education classrooms and at home for individuals with autism spectrum disorder, ADHD, and sensory-seeking behaviors, and it provides moderate postural support for anyone who has trouble holding a seated position on their own. Optional thoracic supports and stabilizers extend that support to users who move sideways as well as back and forth.\u003c\/p\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 18px;\"\u003eSmirthwaite has designed and built postural seating in Devon, England, since 1986. The Hardrock is one of its most established products, now extended with a \u003cstrong\u003eSize 5\u003c\/strong\u003e that carries up to 331 lb for larger teens and adults.\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-bottom: 18px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0735\/9456\/8943\/files\/smirthwaite-hardrock-chair-purple-mobile-base-angle-view.jpg?v=1793838570\" alt=\"Smirthwaite Hardrock chair in purple on the mobile base with tray, anti-thrust seat and push handle, angled view\" title=\"Smirthwaite Hardrock Chair\" loading=\"lazy\" style=\"max-width: 100%; height: auto;\"\u003e\u003c\/p\u003e\n\u003ch4 style=\"font-family: Montserrat, Arial, sans-serif;\"\u003eAt a Glance\u003c\/h4\u003e\n\u003cul style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for rocking:\u003c\/strong\u003e heavy-duty solid-wood frame rated for continuous, high-impact movement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 sizes\u003c\/strong\u003e (2–5), from young children to adults, 132–331 lb capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-thrust seat and anterior pad\u003c\/strong\u003e hold the pelvis securely within defined boundaries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable\u003c\/strong\u003e seat height, seat depth, and armrest height on every size\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e wooden tray, buckle pelvic strap with pad, anti-thrust cushion, adjustable armrests, and a base (see below)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo bases:\u003c\/strong\u003e ski transporter base on sizes 2–3; mobile base with four braked casters and push handle on sizes 4–5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize 5 (Hardrock Plus):\u003c\/strong\u003e extended side gables and bullhorn push handles as standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully slotted upholstery\u003c\/strong\u003e accepts thoracic supports, pelvic supports, harnesses, and headrests\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn stock\u003c\/strong\u003e at Smirthwaite USA in all four sizes; ships by freight with lift-gate delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-year warranty\u003c\/strong\u003e; HSA\/FSA eligible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"font-family: Montserrat, Arial, sans-serif;\"\u003eWho It's Best For\u003c\/h4\u003e\n\u003cul style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 18px;\"\u003e\n\u003cli\u003eChildren, teens, and adults who rock, bounce, or push back forcefully in a chair, and have broken or outgrown ordinary seating\u003c\/li\u003e\n\u003cli\u003eIndividuals with autism, ADHD, or sensory-processing differences who focus better inside a defined, secure space\u003c\/li\u003e\n\u003cli\u003eUsers who need moderate postural support: a stable pelvis and a clear seating boundary, without a full custom seating system\u003c\/li\u003e\n\u003cli\u003eClassrooms, day programs, and therapy rooms that need one chair tough enough for daily use by active users\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 18px;\"\u003eIf your child needs gentle everyday support but doesn't rock hard, the lighter \u003ca href=\"\/products\/heathfield-chair\"\u003eHeathfield\u003c\/a\u003e or \u003ca href=\"\/products\/brookfield-chair\"\u003eBrookfield\u003c\/a\u003e may be the better fit. If you aren't sure, call us and we'll talk it through.\u003c\/p\u003e\n\u003ch4 style=\"font-family: Montserrat, Arial, sans-serif;\"\u003eHow It Holds a Rocker Still\u003c\/h4\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003e\u003cstrong\u003eAnti-thrust seat.\u003c\/strong\u003e The seat is shaped with a raised front section and a contoured anti-thrust cushion. When the user pushes back and down, the seat shape resists the pelvis sliding forward, so the hips stay at the back of the seat instead of creeping toward the edge.\u003c\/p\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003e\u003cstrong\u003eAnterior pad and pelvic strap.\u003c\/strong\u003e A padded buckle pelvic strap holds the pelvis in place from the front. It threads through cam locks under the seat, so it can't be worked loose from inside the chair, and the buckle and tri-glide let a caregiver set the fit in seconds. A four-point pelvic strap is available for users who need more control.\u003c\/p\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003e\u003cstrong\u003eLow, wide, heavy base.\u003c\/strong\u003e Sizes 2 and 3 sit on a ski transporter base: wide wooden skis with an integrated footboard and small rear wheels, so an empty chair can be tilted and wheeled, but an occupied one stays put. Sizes 4 and 5 sit on a mobile base with four locking casters and a push handle so staff can move a seated adult between rooms; brakes on, it is just as planted.\u003c\/p\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003e\u003cstrong\u003eSide-to-side control, when needed.\u003c\/strong\u003e Slotted upholstery on the backrest accepts height- and width-adjustable thoracic supports for users who lean or lurch sideways. Optional stabilizers are telescoping legs that drop to the floor on the mobile-base chairs to widen the footprint further.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 18px;\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"width: 50%; padding: 4px; text-align: center; vertical-align: top; border: 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0735\/9456\/8943\/files\/smirthwaite-hardrock-chair-two-sizes-mobile-and-transporter-base.jpg?v=1793838570\" alt=\"Two Smirthwaite Hardrock chairs in purple: a larger size on the mobile base beside a smaller size on the ski transporter base\" title=\"Hardrock – Mobile Base and Transporter Base\" loading=\"lazy\" style=\"width: 100%; height: auto;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%; padding: 4px; text-align: center; vertical-align: top; border: 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0735\/9456\/8943\/files\/smirthwaite-hardrock-plus-size-5-seated-adult.jpg?v=1793838571\" alt=\"Adult seated in a blue Smirthwaite Hardrock Plus size 5 chair with extended side gables and bullhorn push handles\" title=\"Hardrock Plus – Size 5\" loading=\"lazy\" style=\"width: 100%; height: auto;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; margin-bottom: 18px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/4Br2sxiccxU\" title=\"In the Spotlight: The Hardrock Chair\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\" allow=\"accelerometer; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch4 style=\"font-family: Montserrat, Arial, sans-serif;\"\u003eBuilt to Last\u003c\/h4\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003eEvery Hardrock is made from solid, sustainably sourced timber with a wipe-clean finish, and the frame is screwed together rather than clipped, so the adjustments stay where a therapist set them. The seat height and depth are locked with eight screws, armrests with two, and the tray with plunger pins. Nothing on the chair is meant to be moved by the person sitting in it. The frame wipes clean with soap and water or an antibacterial spray, the upholstery wipes down, and the pelvic strap can go through a cool machine wash. Smirthwaite rates the chair for a seven-year service life with annual checks.\u003c\/p\u003e\n\u003ch4 style=\"font-family: Montserrat, Arial, sans-serif;\"\u003eColors\u003c\/h4\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003eStock chairs ship in \u003cstrong\u003eblue\u003c\/strong\u003e Deluxe fabric with a natural wood finish. \u003cstrong\u003ePurple\u003c\/strong\u003e Deluxe fabric (shown in the photos) and any color from Smirthwaite's Just Colour vinyl range can be ordered at \u003cstrong\u003eno extra charge\u003c\/strong\u003e; custom colors are made to order and take about 4–8 weeks. Call or email us to order a custom color. Colors shown are a guide only; material samples are available on request.\u003c\/p\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 6px;\"\u003e\u003cstrong\u003eDeluxe fabric\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 12px; line-height: 1.2;\"\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #0060BE;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eBlue (stock)\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #5B3A8E;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003ePurple (custom)\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 6px;\"\u003e\u003cstrong\u003eJust Colour vinyl (custom)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 18px; line-height: 1.2;\"\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #0060BE;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eOcean Blue\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #92B2C7;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eCool Blue\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #ED1C24;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eRouge\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #F6733B;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eGingersnap\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #FFEA55;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eMarigold\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #008A50;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eEden\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #44A5A3;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eSea Green\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #A6D823;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eCitrus Green\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #ED4AA4;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eCandy Pink\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #EC98AA;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eCherry Blossom\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #A48EAF;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eLilac\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #2D2A26;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eCobalt (black)\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #686466;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eGreyfriar\u003c\/span\u003e\u003c\/span\u003e\n\u003cspan style=\"display: inline-block; width: 84px; margin: 0 6px 12px 0; text-align: center; vertical-align: top;\"\u003e\u003cspan style=\"font-size: 52px; line-height: 1; color: #FFFEF2; text-shadow: 0 0 2px #999;\"\u003e■\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12px;\"\u003eJasmine White\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/p\u003e\n\u003ch4 style=\"font-family: Montserrat, Arial, sans-serif;\"\u003eBuilt to Be Tailored\u003c\/h4\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003eThe chair itself adjusts in seat height, seat depth, and armrest height, so one size covers several years of growth. The tray, pelvic strap, anti-thrust cushion, and base are included on every chair.\u003c\/p\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003eEverything else is an accessory, chosen with your therapist and added on this page. For \u003cstrong\u003epositioning\u003c\/strong\u003e, a molded pelvic support keeps the hips centered and a pommel keeps the knees apart. For \u003cstrong\u003esideways rockers\u003c\/strong\u003e, stabilizers widen the base of a mobile-base chair. For the \u003cstrong\u003etray\u003c\/strong\u003e, padded inserts (top or underneath) soften it, and front, rear, and side retaining straps keep it locked on under hard use. Stabilizers and tray accessories are factory fitted, so decide on those before you order. Other Smirthwaite options such as thoracic supports, a footplate, heel huggies, and a four-point strap can be special-ordered; call us.\u003c\/p\u003e\n\u003ch4 style=\"font-family: Montserrat, Arial, sans-serif;\"\u003eChoosing the Right Size\u003c\/h4\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003eMeasure the user seated with feet flat: \u003cstrong\u003eseat height\u003c\/strong\u003e is floor to the back of the knee, \u003cstrong\u003eseat depth\u003c\/strong\u003e is the back of the hips to the back of the knee (less about an inch), and \u003cstrong\u003eseat width\u003c\/strong\u003e is across the hips with a little room to spare. Choose the size whose ranges include those numbers now, with room to grow, and check the weight limit. Your therapist can confirm the fit, or call us at \u003ca href=\"tel:18447952930\"\u003e(844) 795-2930\u003c\/a\u003e and we'll walk through it with you.\u003c\/p\u003e\n\u003ctable style=\"font-family: 'Open Sans', Arial, sans-serif; width: 100%; border-collapse: collapse; margin-bottom: 20px; text-align: center;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f4f4f4;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003e2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003e3\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003e4\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003e5 (Plus)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eItem #\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e8202\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e8203\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e8204\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e8205\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eBase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eSki transporter\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eSki transporter\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eMobile, 4 brakes\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eMobile, 4 brakes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eSeat Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e10.2\"–16.1\"\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e11.4\"–17.3\"\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e14.8\"–20.7\"\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e16.7\"–21.7\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eSeat Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e13.8\"\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e16.9\"\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e18.5\"\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e21.7\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eSeat Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e11.8\"–16.3\"\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e14.6\"–19.1\"\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e15.7\"–21.7\"\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e17.7\"–23.6\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eBack Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e15.4\"\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e18.5\"\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e22.6\"\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e25.6\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eMax User Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e132 lbs\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e154 lbs\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e198 lbs\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e331 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eChair Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e77 lbs\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e88 lbs\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e110 lbs\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e132 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; font-size: 14px; margin-bottom: 18px;\"\u003eDimensions are converted from Smirthwaite's metric data and may vary slightly.\u003c\/p\u003e\n\u003ch4 style=\"font-family: Montserrat, Arial, sans-serif;\"\u003eWhat's Included\u003c\/h4\u003e\n\u003cul style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 18px;\"\u003e\n\u003cli\u003eHardrock chair in your chosen size, with standard low back and fully slotted upholstery\u003c\/li\u003e\n\u003cli\u003eAdjustable-height armrests\u003c\/li\u003e\n\u003cli\u003eAnti-thrust seat cushion\u003c\/li\u003e\n\u003cli\u003eWooden tray\u003c\/li\u003e\n\u003cli\u003eBuckle pelvic strap with pad (2-point)\u003c\/li\u003e\n\u003cli\u003eSizes 2–3: ski transporter base with integrated footboard and rear transport wheels\u003c\/li\u003e\n\u003cli\u003eSizes 4–5: mobile base with four braked casters and push handle\u003c\/li\u003e\n\u003cli\u003eSize 5: extended side gables and bullhorn push handles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"font-family: Montserrat, Arial, sans-serif;\"\u003eGood to Know Before You Buy\u003c\/h4\u003e\n\u003cul style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eWork with a therapist.\u003c\/strong\u003e The Hardrock is meant to be set up and adjusted by a PT or OT. Seat height and depth are locked with screws and aren't user-adjustable, which is the point: once set, a rocker can't undo them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy by design.\u003c\/strong\u003e Chairs weigh 77–132 lb and ship by freight on a pallet with lift-gate delivery. Plan on two people to unbox and position it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransporter base is for empty chairs.\u003c\/strong\u003e On sizes 2 and 3, never move the chair with someone in it. If you need to wheel a seated user, call us about the mobile base upgrade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory-fitted items.\u003c\/strong\u003e Stabilizers and the tray inserts and straps are fitted at the factory, so add them to your chair order rather than later.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock status:\u003c\/strong\u003e all four sizes are stock items at Smirthwaite USA. Accessories typically add about 4 weeks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpholstery color:\u003c\/strong\u003e stock chairs come in blue Deluxe fabric. Purple, or any of the 14 Just Colour vinyl colors, is a no-charge custom order (about 4–8 weeks); see the Colors section above.\u003c\/li\u003e\n\u003cli\u003eIndoor use on flat, level floors only. Always fasten the pelvic strap, and never leave a user unattended in the chair.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"font-family: Montserrat, Arial, sans-serif;\"\u003eMore from Smirthwaite\u003c\/h4\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003eFor lighter everyday support, see the \u003ca href=\"\/products\/heathfield-chair\"\u003eHeathfield\u003c\/a\u003e and \u003ca href=\"\/products\/brookfield-chair\"\u003eBrookfield\u003c\/a\u003e chairs. Browse the \u003ca href=\"\/collections\/smirthwaite\"\u003efull Smirthwaite collection\u003c\/a\u003e or all kids' products in the \u003ca href=\"\/collections\/pediatric-mobility-aids\"\u003eIndependent Kids collection\u003c\/a\u003e, and read our \u003ca href=\"\/blogs\/buying-guides\/pediatric\"\u003ePediatric Mobility \u0026amp; Adaptive Equipment Buying Guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch4 style=\"font-family: Montserrat, Arial, sans-serif;\"\u003eWarranty\u003c\/h4\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003eSmirthwaite covers the Hardrock with a \u003cstrong\u003e2-year warranty\u003c\/strong\u003e against defects in materials and workmanship under normal use. Upholstery, straps, and other wear items, and damage from misuse, are not covered. Smirthwaite recommends an annual service check (every six months under heavy daily use) to keep the chair safe and the warranty valid.\u003c\/p\u003e\n\u003ch4 style=\"font-family: Montserrat, Arial, sans-serif;\"\u003eWhy Buy from Independent Living Superstore\u003c\/h4\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003eIndependent Living Superstore is a veteran-owned, family-run company committed to helping individuals, families, and caregivers find practical products that support comfort, dignity, independence, and safer daily routines at home.\u003c\/p\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003eUnlike large marketplace retailers, we carefully select mobility, accessibility, and home care products designed to address real-world challenges. Our team focuses on dependable solutions, honest product information, and responsive support before and after purchase.\u003c\/p\u003e\n\u003cul style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 18px;\"\u003e\n\u003cli\u003eService-Disabled Veteran-Owned Small Business (SDVOSB)\u003c\/li\u003e\n\u003cli\u003eBBB Accredited Business\u003c\/li\u003e\n\u003cli\u003eVeteran-owned and family-run\u003c\/li\u003e\n\u003cli\u003eResponsive customer support\u003c\/li\u003e\n\u003cli\u003eCarefully selected mobility and home care products\u003c\/li\u003e\n\u003cli\u003eFaith-driven values centered on compassion, integrity, and service\u003c\/li\u003e\n\u003cli\u003eNo sales tax outside New York\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003ePay over time with Shop Pay Installments or Affirm at checkout. Military, veterans, and first responders save 5% through GovX ID.\u003c\/p\u003e\n\u003ch4 style=\"font-family: Montserrat, Arial, sans-serif;\"\u003eDisclaimer\u003c\/h4\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif; margin-bottom: 14px;\"\u003eThis product is intended for seating and positioning support only. It is not intended to diagnose, treat, cure, or prevent any condition. Please consult your therapist or healthcare provider about seating needs.\u003c\/p\u003e\n\u003cp style=\"font-family: 'Open Sans', Arial, sans-serif;\"\u003eQuestions? We're happy to help.\u003cbr\u003eEmail: \u003ca href=\"mailto:support@independentlivingsuperstore.com\"\u003esupport@independentlivingsuperstore.com\u003c\/a\u003e\u003cbr\u003ePhone: \u003ca href=\"tel:18447952930\"\u003e(844) 795-2930\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"\/policies\/refund-policy\"\u003eReturn Policy\u003c\/a\u003e | \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e | \u003ca href=\"\/policies\/privacy-policy\"\u003ePrivacy Policy\u003c\/a\u003e | \u003ca href=\"\/policies\/terms-of-service\"\u003eTerms of Service\u003c\/a\u003e\u003c\/p\u003e","brand":"Smirthwaite","offers":[{"title":"Size 2","offer_id":46525947281647,"sku":"8202","price":4074.28,"currency_code":"USD","in_stock":true},{"title":"Size 3","offer_id":46525947314415,"sku":"8203","price":4451.44,"currency_code":"USD","in_stock":true},{"title":"Size 4","offer_id":46525947347183,"sku":"8204","price":4549.61,"currency_code":"USD","in_stock":true},{"title":"Size 5","offer_id":46525947379951,"sku":"8205","price":4840.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/9456\/8943\/files\/smirthwaite-hardrock-chair-purple-mobile-base-angle-view.jpg?v=1793838570","url":"https:\/\/independentlivingsuperstore.com\/products\/hardrock-chair","provider":"Independent Living Superstore","version":"1.0","type":"link"}