Western Trim-to-Fit Shims Square Pads


Shims can be stacked & layered.


Thinline is turning 20 this year, and we couldn’t have done it without you! To celebrate, we’ll be introducing some fresh new looks and products across our line throughout 2024, beginning with a new black embossed pattern on the shims. Hope you enjoy the new designs!!

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Saddle Fitting Shims (Pair)

Made for the ThinLine® pads, this pair of full-length Trim-to-Fit Shims will meet all your saddle shimming needs. Trim them to create a custom pair of front, middle (bridging), and rear saddle fitting shims. These shims can also be left as a full shim to boost your overall ThinLine comfort and protection without adding lift in any one area.

ThinLine Shims aid in correcting minor saddle-fitting issues. They can be used to fit the saddle on an asymmetrical horse or to help a saddle that needs lift in the front or back, or that may be slightly too wide.

The most cost-effective and versatile way to shim your pad, ThinLine shims never lose their performance and shock absorption properties. The shims you buy today will last you a lifetime!

  • 3/16″ (4.8mm) thick

4 styles of Saddle Fitting Shims can be made from our Trim-to-Fit shims.

  • It only takes a pair of scissors to easily trim to fit! Shims come with scoring marks as a guide for you to create pairs of front, bridging, or rear saddle fitting shims. The trim to fit full shim is the most economical way to always have what you need for every horse.
  • If you only need to shim in one area, cut them, then place them where needed in the open pocket of a ThinLine pad. The remaining material can be used to add additional height by stacking several trimmed pieces on top of each other. As your horse grows and changes you now have several sets of shims for fine-tuning saddle fit.
  • Or, use full length to boost your overall lift, protection, and comfort. The most cost-effective and versatile way to shim your pad!

Choosing the correct shim for your Pad:

If you have one of the following pads, you’ll choose either the 30×30 shim or the 32×32 shim, depending on your pad’s length.

  • Contour Western Ranch Pads
  • Western Woven Wool Sheepskin Square
  • Western Cotton Square Liner
  • Western Felt Square Liner
  • Wax Tough Rider Square Pad

If you have a ProTech Felt square pad, you’ll choose the ProTech Felt Square option for your shim.

If you find you no longer need inserts, just remove them and keep all the great benefits of your ThinLine Pad!

We have a list of saddle fitters on our dealer page if you would like to consult with a specialist.

Western Saddle Pad Shim Colors

ThinLine shims may arrive in black, brown, or white. Since Western saddle shims for horses cannot be seen inside your pad, color is not an issue.

Additional information

Weight 1 lbs
Dimensions 15 × 12 × 1 in

30 x 30, 32 x 32, Protech Felt Square

How to Buy Outside the USA

ThinLine is readily available in most countries. This site ships to the USA, Mexico, and South America.

We hope you will use the following links to our authorized distributors in the following regions.  Here you will find all the great products and support you need:

Europe and the UK: https://www.thinlineglobal.eu/

Australia:  https://thinlineglobalau.com/

Canada:  https://thinlinecanada.ca/


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    Can you use these shims with the contour western round skirt pad?
  1. Q Can you use these shims with the contour western round skirt pad? answer now

    Thanks for your question! These shims are designed specifically for the square western pads. Please click here to find the shims for the round skirt pads. 

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