How to Cut Engineered Quartz Countertops

Engineered quartz countertops are an increasingly popular choice for kitchen and bathroom renovations due to their durability, aesthetic appeal, and easy maintenance. However, these countertops are not indestructible and may occasionally need to be cut or modified to fit your space. Here is a comprehensive guide on how to properly cut engineered quartz countertops without damaging them.

Gather the Right Tools

Cutting engineered quartz requires specialty tools that are designed for the job. Regular construction saws like circular saws, jigsaws, or tablesaws can chip, crack, or shatter the slabs. You’ll need:

  • A wet saw with a diamond-grit blade specifically made for cutting stone. Look for blades that are continuous rim instead of segmented.
  • Ear and eye protection – quartz cutting is a wet process that produces lots of noise and debris.
  • Marking pencil or chalk. Avoid ink pens which can stain the surface.
  • Gloves to protect your hands from sharp edges.
  • Safety gear like closed-toe shoes, long pants, and a mask to prevent breathing dust.
  • A helper for large cuts – quartz slabs are very heavy.

Prepare the Workspace

The key is keeping the quartz slab steady, level, and properly supported during cutting. Set up your workspace with:

  • Sturdy sawhorses or workspace at a comfortable height.
  • Non-slip mat or plywood underneath to prevent the quartz from shifting.
  • Enough workspace to fully support the section being cut.
  • Water source to keep the blade wet and minimize dust.

Measure Twice, Cut Once

Get accurate measurements and mark your cut lines before turning on the saw.

  • Use a framing square or straightedge to mark straight cuts. For curved cuts, trace a template.
  • Double check your measurements – quartz cannot be pieced back together once cut.
  • Adjust blade depth so it cuts through the slab but not into the support mat.
  • Align cuts to account for the blade thickness (usually 1/8″).

Make the Cuts

Now you’re ready to cut the quartz:

  • Keep your hands safely away from the blade. Use clamps to hold the slab if needed.
  • Feed the quartz slowly and steadily into the blade. Don’t force or rush the cut.
  • Apply even pressure as you cut and ease up at the end. This gives a clean edge.
  • For irregular cuts, cut outside the line then trim to your exact line.
  • Rout edges smooth with a diamond polishing pad.

Clean Up and Installation

Once cut, finish preparing the slabs for installation:

  • Wipe down all surfaces to remove debris and excess moisture.
  • Sand any rough edges smooth with 400+ grit wet/dry sandpaper.
  • Fill small chips with clear resin filler tinted to match the quartz. Allow to cure fully.
  • Lift and move slabs carefully using suction cups. Get help for larger pieces.
  • Use silicone and bracing to secure the quartz pieces into place.

With the right tools and careful technique, DIYers can cut their own engineered quartz countertops. Just remember to always use proper safety precautions. After cutting, the countertops can be installed for a custom look in your kitchen or bath.

Frequently Asked Questions

What can I use to cut engineered quartz?

You need a wet saw with a continuous rim, diamond-grit blade specifically for cutting stone. Standard woodworking saws will damage quartz.

How thick are engineered quartz slabs?

Quartz countertops are typically 3/4″ thick but thicker options like 1 1/4″ are available. Make sure the saw blade cuts through the full thickness.

What speed should I cut quartz at?

Cut slowly and steadily without forcing the saw. Feed rates between 4-6 inches per minute are typical. Cutting too fast raises the risk of cracks and chips.

Can I cut quartz outside?

You can but you’ll need to contain the water runoff. Cutting dry generates harmful silica dust. Cutting wet helps control dust.

What safety gear should I use?

Wear eye protection, ear protection, gloves, long pants, and a N-95 dust mask. The saw cutting process uses water but still produces some airborne debris.

How do I cut quartz around a sink?

Use a template to trace the sink outline onto the quartz. Drill pilot holes and use a jigsaw to cut the sink opening. Finish edges with sandpaper and polish with a pad.


Cutting engineered quartz gives you the flexibility to create custom sized countertops. With safety precautions and the right tools, DIYers can cut their own quartz. Focus on keeping the slab steady, making precise measurements, and cutting slowly. The end result will be a beautiful, professionally cut countertop ready for installation.