Industrial & Scientific

The Best Round Shims

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Our picks are based on Amazon bestseller rankings, verified customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

Round shims are essential for achieving precise leveling and support in various applications, from plumbing and electrical installations to furniture setup and machinery stabilization. Selecting the correct type and size ensures stability, prevents damage, and guarantees a professional finish. Understanding the key features will help you find the perfect solution for your needs.

SaleNo. 2
Haull 50 Pcs Billiard Pool Table Leg Shims 3" Diameter Rubber Billiard Table Leveler Pads, 0.06 Inch Thick...
  • 50 Pack Value Set and Tool Free Installation: includes 50 rubber pool table shims for leveling multiple table legs or keeping extras on hand for future adjustments; Simply place the shims under the legs, no tools, and no complicated setup; Suitable for...
  • Keep Your Pool Table Perfectly Level: designed specifically for billiard tables, these rubber pool table shims help eliminate wobbling and uneven table legs, ensuring a level playing surface for more accurate shots and a better game experience; Perfect...
  • Durable Rubber Construction: made from rubber, these pool table leveling pads are flexible yet strong enough to withstand the weight of heavy billiard tables; Unlike cardboard, wood, or foam shims, they resist cracking, deforming, and flattening over time...
  • Non-slip and Floor-safe Design: the textured rubber material helps keep table legs securely in place while reducing unwanted movement during play; It also protects hardwood, tile, laminate, and other flooring surfaces from scratches, dents, and pressure...
  • Stackable and Easy to Trim: each shim measures 3 inches in diameter and 0.06 inch thick; Use a single pad for minor leveling adjustments or stack multiple pads together to achieve the exact height needed; They can also be trimmed to fit different table...
No. 3
M5x7mm Shim Washer Set 48pcs – Metric Steel Spacers 0.1/0.2/0.3/0.5mm, Precision Alignment, Compatible with...
  • Designed for compatibility with standard M5 metric bolts
  • Great for machine adjustment, leveling, and spacing tasks
  • Smooth finish and strong steel construction for long-term reliability
  • Four thicknesses (0.1-0.5mm) included for flexible engineering needs
  • Useful in 3D printing, machine maintenance, and device repairs
No. 4
Steel Round Shim, Matte Finish, Full Hard Temper, 0.010" Thickness, 1-1/2" ID, 2-1/8" OD (Pack of 10)
  • Steel round shim provides good strength
  • Unpolished (mill) surface has no finish
  • Standard tolerance
No. 5
Steel Arbor Shim Assortment Kit, Matte, Full Hard, AISI 1008-1010 For Chemistry, 1'' ID, 1-1/2'' OD (Pack of...
  • Contains 1 of each thickness: 0.001", 0.0015", 0.002", 0.003", 0.004", 0.005", 0.006", 0.007", 0.008", 0.010", 0.012", 0.015", 0.020", 0.025", 0.031", 0.047", 0.062", 0.093", and 0.125"
  • Made of high quality, low carbon, cold rolled, full hard, steel (either 1008 or 1010)
  • Arbor spacers are used for keyed applications; arbor shims have no keyways
  • Saves time over re-machining
  • Packaged in airtight poly bag
No. 6
Steel Round Shim, Matte Finish, Full Hard Temper, 0.031" Thickness, 3/8" ID, 5/8" OD (Pack of 10)
  • Steel round shim provides good strength
  • Unpolished (mill) surface has no finish
  • Standard tolerance
No. 7
Steel Round Shim, Matte Finish, Full Hard Temper, 0.010" Thickness, 1" ID, 1-1/2" OD (Pack of 10)
  • Made of high quality, low carbon, cold rolled, full hard, steel shim
  • Made of high quality, low carbon, cold rolled, full hard, steel shim
  • Arbor spacers are used for keyed applications; arbor shims have no keyways
  • Saves time over re-machining
  • Precision thicknesses for more accurate results
No. 8
Jayen Rubber Shims 20 Pack – Non-Slip Furniture Levelers & Stackable Wedges for Tables, Toilets, Appliances...
  • 【Stop the Wobble – Instant Stability】Tired of shaky chairs or uneven appliances? These furniture levelers stabilize furniture, appliances, and toilets instantly—no tools or installation needed.
  • 【Premium Non-Slip Rubber Material】Crafted from high-quality rubber, our Adjustable shims grip surfaces better than plastic, delivering superior anti-slip performance and long-lasting durability.
  • 【Cut to Fit, Stack as Needed】Customize each wedge to your exact needs. Easily cut or stack them to level anything from a table leg to a washer or refrigerator.
  • 【Multi-Surface Compatibility】Perfect for wood, tile, concrete, or laminate flooring—these rubber leveling shims work wherever you need extra balance or height adjustment.
  • 【Versatile for Home & Office】Ideal for home improvement, office furniture, toilets, cabinets, bookshelves, and more. A must-have for every toolbox or maintenance kit.
No. 9
X-Protector Furniture Levelers - 30 PCS 2" - Brown Rubber Shims for Leveling - Multi-Purpose Leveling Feet to...
  • ✌️ Do You Want to Stop Your Furniture From Wobbling? Do You Wish to Avoid Noise and Prevent Damage to Your Floors? New Furniture Levelers by X-Protector Will Help You to Do This.
  • ✌️ High-quality - Rubber Material Provides an Ultimate Grip while Plastic Shims Do Not Have This Opportunity and Works as Furniture Leveling Feet for Uneven Tables, Bookshelves, Dressers, etc.
  • ✌️Perfect Size - Adjustable Furniture Risers by X-Protector are Suitable for All Kinds of Objects. Also, Flexible Wedges Can Be Cut to the Needed Size Easily Compared to Plastic Shims for Leveling!
  • ✌️ Multipurpose - X-Protector Adjustable Leg Levelers are ideal for Leveling Furniture at Home, Restaurant, and Outdoors on Any Kind of Floor: Hard or Carpeted - Doesn't Matter.
  • ✌ Experience absolute contentment with our top-tier shims! If our shims for leveling don't meet your expectations, we'll issue a refund – simply let us know. Make your purchase confidently!
No. 10
1/2 x 28 Barrel Shim Kit for Muzzle Brake Alignment Set .223/5.56mm (44 Pack, 11 Kinds of Thickness)
  • 5/8-24 Barrel Shim Kit is for 5.56mm/ .223 These shims assist in timing and alignment, dependable design constructed and precision made from quality 304 stainless steel. Our shims Will Not adding unnecessary bulk of your barrel.
  • Outer Diameter of .77" & Inner Diameter of .51"
  • For Timing and Alignment. Fit Barrels with 1/2"-28 TPI (.223/5.56) Threads
  • it includes .002"x 4, .003"x 4, .004"x 4, .008"x 4, .010"x 4, .012"x 4, .016"x4, .020"x 4, .024"x 4, .028"x 4 and .030"x 4 shims. Total 44 Pieces
  • 44 Pack Stainless steel shims of various thickness by Clearly Marked & Separate Packaged,so you can quickly identify thicknesses and save time.

Last update on 2026-07-18 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Round Shims

Key Factors for Choosing Round Shims

When selecting round shims, consider these crucial elements to ensure optimal performance and durability for your project:
  • Material: Shims are available in various materials, each suited for different environments and load requirements. Plastic shims are lightweight, resistant to rot and moisture, and ideal for indoor or non-structural applications. Rubber shims offer excellent grip and vibration dampening, making them suitable for appliances and sensitive equipment. Metal shims, typically made from steel or aluminum, provide superior strength and durability for heavy-duty applications or situations requiring high load-bearing capacity.
  • Size and Thickness: Round shims come in a wide range of diameters and thicknesses. Measure the gap you need to fill accurately. It's often better to have a shim that is slightly larger in diameter than the opening, as it can be trimmed if necessary. The thickness should be sufficient to provide the required lift or support without compromising stability. Consider shims that can be stacked for greater height adjustments.
  • Load Capacity and Durability: Assess the weight or force the shim will need to support. For heavy machinery or structural elements, choose shims made from robust materials like steel that are designed to withstand significant pressure without deforming or breaking. For lighter tasks, plastic or rubber options may suffice, but always check the manufacturer's specifications for load limits to prevent failure.

Frequently Asked Questions

What are round shims used for?
Round shims are primarily used to fill small gaps, provide stable support, and achieve precise leveling. They are common in construction, plumbing, electrical work, and for stabilizing furniture and appliances.
Can I use any material for shims?
The best material depends on the application. Plastic is good for general use and moisture resistance, rubber offers grip and vibration absorption, while metal is best for heavy loads and high durability.
How do I determine the correct size?
Measure the gap you need to fill accurately. It's often advisable to choose a shim with a diameter slightly larger than the opening, as it can be trimmed. The thickness should provide the necessary support without over-compressing.
Are round shims suitable for outdoor use?
Plastic and metal shims are generally suitable for outdoor use, as they resist moisture and decay. Rubber shims may degrade over time with prolonged exposure to UV rays and extreme temperatures.