How To Cut Fiber Cement Siding

By Todd Fratzel on Power Tools, Siding & Trim

Cutting Fiber Cement Siding

Turboshear TSF1A Fiber Cement PnuematicFiber Cement siding has become a very popular siding choice for new homes and remodeling jobs. One of the biggest complaints I hear though is how hard it is to cut the siding during installation. There are several ways to cut fiber cement siding and each method has it’s pros and cons.

Siding Shears

The cleanest way to cut fiber cement siding is by using siding shears. Typically siding shears use air pressure to power them and they shear or cut the siding like a pair of scissors. I recommend the Turboshear TSF1A Fiber Cement Pnuematic if you’re looking to buy a pneumatic siding shear. Just hook this siding shear up to your air compressor and you’re ready cut the fiber cement.

Diamond Blades

You can use diamond cutting blades attached to your circular saw or sliding miter saw. Diamond blades are more expensive than carbide blades but they will last much longer cutting cement siding. No matter what type of saw blade you use you need to be very careful about the dust. Be sure to use safety glasses and dust masks. Be sure to check the arbor size on your saw blades before you buy a diamond one to be sure it will fit.

Carbide Blades

Carbide blades also work quite well. In fact, every time we’ve done a fiber cement siding job we use carbide blades and reverse the blade direction. Again be sure to wear dust masks and proper eye protection. The dust from fiber cement siding can cause serious health problems if you’re not careful.

Makita Circular Saw with Dust CollectorCircular Saw with Dust Collector

Another great tool for cutting fiber cement siding is using a circular saw with a good dust collector. I really like the Makita 5057KB 7-1/4-Inch Circular Saw with Dust Collector. This circular saw was built specifically for cutting fiber cement 5/16″ siding. It has a 13 amp motor to handle the tough siding and dust-proof bearings and switches to keep the saw running in a really harsh environment.

About the author

Todd Fratzel

I'm full time builder for a large construction company in New Hampshire. I run their design-build division that specializes in custom homes, commercial design-build projects and sub-divisions. I'm also a licensed civil and structural engineer with extensive experience in civil and structural design and home construction. My hope is that I can share my experience in the home construction, home improvement and home renovation profession with other builders and home owners. I'm also the Editor-in-Chief and Founder of Tool Box Buzz. Please feel free to contact me if you have any questions, suggestions or you'd like to inquire about advertising on this site.

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