Snap these shims together and they’ll stay securely stacked to maintain alignment. Best for filling large gaps, they're commonly used to align cabinets, doors, and windows. Slip them around existing mounting fasteners without unfastening them. To reduce sizing errors, these shims are color coded by thickness to quickly spot and grab the right size every time. All are made of plastic to resist moisture and prevent rot.

These thick shims keep their shape under heavy loads. Best for filling large gaps, they're often used to align hefty machinery, metal supply cabinets, and safes. Slip them around existing mounting fasteners without unfastening them. Stronger than plastic, all are made of stainless steel and won't degrade when exposed to harsh weather, salt water, and most chemicals.

You can stack multiple shims to achieve your exact thickness, but stacking more than four may cause them to shift. Remember, fewer shims are better, so a couple of thicker shims are more stable than a bunch of thin shims.

Eliminate swapping out shims of varying lengths—break off the scored sections for the length you need. Best for filling large gaps, these shims are commonly used to align cabinets, doors, and windows. Slip them around existing mounting fasteners without unfastening them. All are made of plastic to resist moisture and prevent rot.