How to Use Leftover Quartz Countertop

Quartz countertops are a popular choice for modern kitchens and bathrooms due to their durability, aesthetics, and ease of maintenance. However, quartz is purchased and fabricated in set slab sizes, so it is common to have leftover pieces after a installation. Rather than discarding the leftovers, there are creative ways to repurpose quartz scraps and give them new life.

Evaluate the Leftover Pieces

The first step is to carefully evaluate the leftover quartz pieces to determine their size, thickness, and condition. Large quartz remnants may be suitable for using as:

  • Small countertops
  • Backsplashes
  • Kitchen islands

Smaller quartz scraps can be used for:

  • Bathroom vanities
  • Makeup stations
  • Accent tiles
  • Fireplace surrounds

Inspect the edges and surfaces for any defects or damage. Repurposing will be easiest with clean, straight edges and an undamaged face.

Plan Your Project

Once you’ve assessed your usable remnants, decide on a DIY project to showcase them. Measure the dimensions of the scraps and sketch plans to visualize how they can be incorporated.

Some factors to keep in mind:

  • Seams: Since you’re working with irregular pieces, you’ll need to plan seams for adjoining sections.
  • Overhang: Account for overhang if using as a countertop or island. Standard is 1-1/2″.
  • Support: Underlayment, frame, or other adequate support will be needed.
  • Finish: Match the visual finish of your existing quartz if redoing a kitchen or bath.

Prepare the Surface

Inspect the back and edges of the quartz remnants and sand or grind any rough spots. Clean thoroughly with denatured alcohol to remove any dirt, grease, or residue.

Apply any adhesive according to manufacturer specifications. For large sections, use a full-spread adhesive like polyurethane or epoxy. For tiles, a thinset mortar modified for stone tile is recommended.

Install the Recycled Quartz

Follow these best practices for installation:

  • Dry fit pieces before permanently adhering.
  • Clamp adjoining pieces to prevent seams from shifting.
  • Leave a 1/16″ gap between pieces to allow for expansion.
  • Clean excess adhesive immediately; dried adhesive is hard to remove.
  • Use a shim to account for any unevenness in the substrate.
  • Allow proper curing time before use, usually 24-48 hours.

Protect and Maintain

Quartz remnant surfaces, once installed, can be maintained similarly to a full slab.

  • Use a stone cleaner or mild soap and water to clean.
  • Reseal with a stone sealer every 1-2 years.
  • Avoid harsh chemicals or abrasive cleaners.
  • Use a cutting board to protect from scratches and stains.

With some planning and skill, those leftover bits of quartz can be reinvented into beautiful and functional features in your home. Get creative with repurposing scrap quartz!

FAQs About Using Leftover Quartz

Can you make a kitchen backsplash from leftover quartz?

Yes, leftover quartz pieces can definitely be used to create a custom backsplash. Plan the layout to utilize the remnants and fill in any gaps with coordinating tiles.

What can I use small quartz scraps for?

Small quartz leftovers are perfect for making trivets, cheese boards, coasters, or accent wall tiles. Get creative with remnant sizes under 12 inches.

Can you mix different quartz colors and styles?

It’s best to repurpose remnants that match the existing quartz. But for smaller DIY projects, blending different quartz styles can create unique designs.

Is it okay to cut quartz pieces to size?

You can cut quartz with a wet saw using a diamond blade. Cut slowly and keep quartz wet to avoid overheating. Finish edges smoothly.

Does leftover quartz need to be resealed?

Yes, reused quartz should be properly cleaned and resealed with an penetrating sealer made for natural stone. This prevents stains.

Can I install recycled quartz myself or need a pro?

Quartz requires expertise to install well. For best results, have a professional fabricator or installer handle any major projects reusing scraps.


With smart planning and proper technique, leftover quartz slabs don’t have to go to waste. Give scraps new life by repurposing them in creative ways throughout your home. Just be sure to evaluate the pieces, plan your project well, prepare the surface, and install the recycled quartz correctly. With a bit of ingenuity, you can transform quartz remnants into stunning designs.