{"product_id":"thinline-english-trim-to-fit-saddle-fitting-shims","title":"ThinLine English Trim-To-Fit Saddle Fitting Shims","description":"\u003ch2\u003eThinLine English Trim-To-Fit Saddle Fitting Shims\u003c\/h2\u003e \u003cp\u003eThinLine English Trim-to-Fit Shims are 3\/16\" (4.8mm) shock-absorbing foam inserts that slot into a shimmable saddle pad to fine-tune saddle balance. Supplied in pairs with printed scoring marks, they are trimmed with scissors or a box cutter into front, bridging or rear shims, making them best for riders dealing with a bridging saddle, a dipped or swayback topline, or a young horse whose shape is still changing.\u003c\/p\u003e \u003cp\u003eBecause the foam never expires or compresses, one set can be re-trimmed and re-stacked over years of use. Browse more \u003ca href=\"\/collections\/saddle-pads\"\u003esaddle pads and numnahs\u003c\/a\u003e to pair with your shims.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTrim-to-fit:\u003c\/strong\u003e scoring marks and guidelines let you create front, bridging or rear shims at home\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSlim 3\/16\" (4.8mm) profile:\u003c\/strong\u003e adds targeted height without bulk under the saddle\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eShock-absorbing comfort foam:\u003c\/strong\u003e the same foam used in ThinLine saddle pads\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNo expiration date:\u003c\/strong\u003e the foam does not compress or deteriorate, so shims last\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStackable offcuts:\u003c\/strong\u003e surplus pieces can be layered to build extra height\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStays in position:\u003c\/strong\u003e inserts do not shift, and an undivided pocket allows precise placement\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFull-shim option:\u003c\/strong\u003e a cost-effective all-in-one fit that also protects the pad and back\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBridging support:\u003c\/strong\u003e start with 1-2 shims to help even out contact and encourage top-line development\u003c\/li\u003e \u003cli\u003e\u003cstrong\u003eSupplied in pairs\u003c\/strong\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e \u003ctable\u003e \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eThinLine\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eEnglish trim-to-fit saddle fitting shims\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003cth\u003eThickness\u003c\/th\u003e\n\u003ctd\u003e3\/16\" (4.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eShock-absorbing comfort foam\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003eSupplied in pairs\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003cth\u003eShim configurations\u003c\/th\u003e\n\u003ctd\u003eFront, bridging, rear or full shim\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003cth\u003eTrimming tools\u003c\/th\u003e\n\u003ctd\u003eScissors or box cutter\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003cth\u003eCountry of origin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e \u003c\/table\u003e \u003ch3\u003eHow To Use\u003c\/h3\u003e \u003col\u003e \u003cli\u003eAssess your saddle on the horse's bare back and note where it sits low, rocks or bridges.\u003c\/li\u003e \u003cli\u003eDecide which shim you need - front for a saddle sitting low at the pommel, rear for a low cantle, bridging for a gap through the middle.\u003c\/li\u003e \u003cli\u003eFollow the printed scoring marks and trim with scissors or a box cutter, cutting conservatively as foam cannot be added back.\u003c\/li\u003e \u003cli\u003eSlide the shim into the pocket of your shimmable pad and position it precisely where lift is needed.\u003c\/li\u003e \u003cli\u003eRide in and reassess. Stack trimmed offcuts to add height, or remove a shim if the saddle now sits high.\u003c\/li\u003e \u003cli\u003eRe-check the balance regularly and have your saddle assessed by a qualified saddle fitter as the horse's shape changes.\u003c\/li\u003e \u003c\/ol\u003e \u003ch3\u003eFAQ\u003c\/h3\u003e \u003cp\u003e\u003cstrong\u003eHow thick are ThinLine trim-to-fit shims?\u003c\/strong\u003e\u003cbr\u003eEach shim is 3\/16\" (4.8mm) thick, thin enough to add subtle height without bulk. Offcuts can be stacked if you need more lift.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHow many shims should I start with for a bridging saddle?\u003c\/strong\u003e\u003cbr\u003eFor a bridging saddle or a swayback horse, start with one or two shims. Adding height gradually helps balance contact and encourages top-line development, and many riders can remove shims as muscle builds.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHow do I trim them?\u003c\/strong\u003e\u003cbr\u003eUse scissors or a box cutter and follow the printed scoring marks and trimming guidelines. Trim a little at a time - you can always cut more, but you cannot replace foam once removed.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWill the shims move around under the saddle?\u003c\/strong\u003e\u003cbr\u003eNo. The inserts stay in place without shifting, and because the pocket is not divided you can place them exactly where your horse needs support.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eDo the shims wear out?\u003c\/strong\u003e\u003cbr\u003eThe foam has no expiration date and does not compress or deteriorate, so a set can be re-trimmed and re-stacked as your horse changes shape.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eDo shims replace a professional saddle fitting?\u003c\/strong\u003e\u003cbr\u003eNo. Shims fine-tune balance between fittings. Always have your saddle checked by a qualified saddle fitter, particularly for young or changing horses.\u003c\/p\u003e \u003ch3\u003eAbout ThinLine\u003c\/h3\u003e \u003cp\u003eThinLine produces slim, shock-absorbing foam products for saddle pads and saddle fitting. The brand's focus is on thin profiles that cushion the horse's back and absorb concussion while keeping the rider in close contact with the horse.\u003c\/p\u003e \u003cscript type=\"application\/ld+json\"\u003e {\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How thick are ThinLine trim-to-fit shims?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Each shim is 3\/16\\\" (4.8mm) thick, thin enough to add subtle height without bulk. Offcuts can be stacked if you need more lift.\"}},{\"@type\":\"Question\",\"name\":\"How many shims should I start with for a bridging saddle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For a bridging saddle or a swayback horse, start with one or two shims. Adding height gradually helps balance contact and encourages top-line development, and many riders can remove shims as muscle builds.\"}},{\"@type\":\"Question\",\"name\":\"How do I trim them?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Use scissors or a box cutter and follow the printed scoring marks and trimming guidelines. Trim a little at a time - you can always cut more, but you cannot replace foam once removed.\"}},{\"@type\":\"Question\",\"name\":\"Will the shims move around under the saddle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The inserts stay in place without shifting, and because the pocket is not divided you can place them exactly where your horse needs support.\"}},{\"@type\":\"Question\",\"name\":\"Do the shims wear out?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The foam has no expiration date and does not compress or deteriorate, so a set can be re-trimmed and re-stacked as your horse changes shape.\"}},{\"@type\":\"Question\",\"name\":\"Do shims replace a professional saddle fitting?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Shims fine-tune balance between fittings. Always have your saddle checked by a qualified saddle fitter, particularly for young or changing horses.\"}}]} \u003c\/script\u003e","brand":"ThinLine","offers":[{"title":"Small \/ One Colour","offer_id":58455962091903,"sku":"KM10042SPFS-7306-S-TL","price":62.1,"currency_code":"GBP","in_stock":true},{"title":"Medium \/ One Colour","offer_id":58455962124671,"sku":"KM10042SPFS-7306-M-TL","price":62.1,"currency_code":"GBP","in_stock":false},{"title":"Large \/ One Colour","offer_id":58455962157439,"sku":"KM10042SPFS-7306-L-TL","price":62.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/6786\/6023\/files\/2861766b-203f-48cb-be6c-0d8989a72a69.jpg?v=1789658308","url":"https:\/\/www.justhorseriders.co.uk\/products\/thinline-english-trim-to-fit-saddle-fitting-shims","provider":"Just Horse Riders","version":"1.0","type":"link"}