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Wood Shims

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Find Shims for a Door or Window Installation

Door and window installation can be smooth processes if you have the right supplies on hand. Shims are an easy-to-use building supply that you can use to keep doors and windows plumb and level. You’ll find wood, metal and plastic shims when you shop with us at Lowe’s.


Shims are available for purchase in bundles, so you can keep a variety on hand for any home project. Wood shims have good traction that helps them to stay securely in place. Plastic shims are lightweight and resist rot and rust, making them ideal for outdoor projects. Metal shims deliver durability. Consider the distinct advantages of the different shim types as you decide which one is right for your project needs.


Frequently Asked Questions 


Q: What are the uses for shims?

A: You can use shims to make slight adjustments to door frames and windows to ensure they’re plumb and level. Shims for door hinges can help you align a door in the frame so it opens easily.

Although it’s common to use shims with doors and windows, you can also use them in other home applications where you need to align or balance elements. For example, you can use them to balance kitchen cabinets or even in outdoor construction projects with concrete.


Q: Are plastic shims strong?

A: Wood shims are perhaps the most popular kind, but plastic shims are also quite strong and, in many uses, last longer than their wood counterparts. Plastic shims are lightweight, easy to position and typically cost less than wood or metal shims. They also won’t rot or rust.


Q: How do you fasten shims?

A: Screws are the best hardware for fastening shims and ensuring a secure installation. First, you slide the narrow end of the shim into a gap. Once all of your shims are in place and the door or window is properly level, you can fasten the shims with screws to ensure they don’t shift.