Information About Granite Brackets


The history of the granite bracket.

In the early days granite installers had to make their own brackets. Very often the granite bracket was just a slim piece of steel with a couple of mounting holes drilled into it and slapped onto a pony wall with any screws available. It was a one size fits all world with very little innovation or thought of true safety for granite countertop support.

It wasn’t long before the industry understood the importance of manufacturing strong, tested and reliable support for granite or natural stone overhangs. At first only granite installers knew of the need for granite supports to insure for a safe granite countertop install. But the need to improve on what at the time was just a flat bar with holes in it pushed innovators like Centerline Brackets to push the envelope. They began with quality American steel. Quality Assurance on every bracket that left the doors. Powder Coating all brackets. Offering a selection of colors to match the granite.

There are many companies now, even one that calls itself “The Original Granite Bracket” but even with a catchy name, you need to investigate

What is a Granite Bracket?

A granite bracket is a device that is usually made out of steel and is designed to fasten to a wall or cabinetry for the sole purpose of supporting granite overhangs. The brackets are used as a safe way to have a floating granite overhang that will be able to support the weight of the granite and any extra weight that might be placed on the stone overhang.

Granite brackets come in many forms and are used in many circumstances. Below is a list of granite brackets that are most common.

List of Granite Brackets found on the internet





bad-brackets-for-supporting-granite-countertop Granite Bracket SupportThe Birth of the Granite Bracket Industry

But finally the granite support bracket industry was born with the mass understanding that all granite installers did not have the skill sets or the equipment to properly make the granite bracket. Many companies discovered the niche market of granite brackets, but not all companies took the seriousness of the safety factors involved in supporting a brittle granite overhang that could and will break given the “wrong” load on its unsupported structure.

Granite is one of the hardest natural substances known to man but in this strength it has its own Achilles heel – it’s not so good at bending. So can granite snap under its own weight? Well not all granite is the same and some is more porous than others but the answer is, yes. There are many stories told of granite breaking when someone puts some weight or stands on the extended or unsupported part of the granite and snaps it off causing the granite to crash to the floor.

There is now many granite bracket manufacturers coming out of the woodwork with more concern over profits than safety and quality. The GBA will examine all companies that manufacture granite brackets in order to help the consumer in choosing the best granite bracket for your needs.

Below is a list of the granite bracket companies:

  1. Centerline Brackets
  2. Federal Brace
  3. The Original Granite Bracket
  4. The many manufactures on EBay

What to look for in a granite bracket.

Granite brackets needs to meet many standards, but the first thing it needs to be is strong.

    • A strong bracket can not flex and it must be made with a minimal thickness of .5 inches of American steel at no longer than 21 inches in length.
    • The granite bracket should have more than two support holes to fasten itself to a structure.
    • The support holes should be countersunk as not to create an uneven surface facing the smooth granite stone.
    • The granite bracket should have the support holes separated and never in line as this might crack the wood upon installation or use.
    • The granite bracket should be powder coated to protect the steel from rust and wear.
    • You should never buy a granite bracket from a un-reputable company – Do research – Look for the Google Trusted Stores on the site and read the reviews.
    • Look for comments on the site – Do they all look real or are they just advertising to make the company look good.

Ask the following questions and compare companies that offer support.

    • Ask many questions about how they are manufactured – Do they weld the brackets or bend them – Are they tested before they are sold – What colors do they come in.
    • Ask if they are using American steel – then ask for proof.
    • Ask about a modification to the granite bracket – like an extra support hole.
    • Do they come with instructions and mounting hardware.
    • Ask for the support phone number and then call it back later in the day and ask for a qualified technician to answer a question – Can they send you Engineer Certification Specs?

What is Granite?


Granite is Porphyritic is an adjective used in geology, specifically for igneous rocks, for a rock that has a distinct difference in the size of the crystals, with at least one group of crystals obviously larger than another group. Porphyritic rocks may be aphanitic or extrusive, with large crystals or phenocrysts floating in a fine-grained groundmass of non-visible crystals, as in a porphyritic basalt, or phaneritic or intrusive, with individual crystals of the groundmass easily distinguished with the eye, but one group of crystals clearly much bigger than the rest, as in a porphyritic granite. Most types of igneous rocks may display some degree of porphyritic texture. One main type of rock that has a porphyritic texture are porphyry, though not all porphyritic rocks are porphyries. Source – Wikipedia.


I have seen a piece of Rainforest Green Granite actually blow apart when removing it from the delivery truck. It was not dropped, nor mishandled, it was simply moved off the truck to a display stand and before it was a foot off the bed of the truck it shattered sending pieces of granite in all directions. We were lucky but we did send a man to the Hospital for some stitches.