Extra Large Islands: What to Know

Oversize kitchen islands that are becoming more and more popular. Here are a few things to know when considering installing an extra large island.

Slab Size Restrictions

  • Be aware that all quartz and granite slabs do not come in Jumbo –average quartz slab is 120″ x 55″, and for granite 120” x 70

Possibility of Seam or Seams

  • When choosing stone, know how large the slab is in comparison to the desired island dimensions, or you can end up with a seam

Safely Installing the Island Stone

  • Such large stone countertops can require special installation assistance, such as a crane
  • Know the limitations of your space, including staircases and doorways


  • Proper support is necessary for extra large stone island tops, especially large overhangs for seating
  • Brackets should be included in the layout and discussed during the design stage

Countertop to Countertop Clearance

  • 42″ between perimeter and island countertops is the minimum clearance we advise

Make Your Island the Star

  • Take advantage of the incredibly beautiful stone options available and make your island the focal point of the room
  • A dramatic stone can serve as a piece of art for your space

Mixing Materials

  • To achieve a large island without the seam, consider adding a wood countertop next to the stone top


  • When designing an extra large island, where the outlets go is important
  • Consider a pop-up outlet for a seamless and sleek appearance