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  • Concrete countertop fancy edge detail from Stone Passion.
  • A residential bar countertop with a chiseled edge from Custom Crete Werks LLC.
  • Concrete countertop rope edge detail from The Green Scene.
  • Concrete countertop rock edge from Surfacing Solutions.
  • Concrete countertop bull nose detail from The Green Scene.
  • Straight edge concrete countertop from SureCrete Design Products.
  • Troweled edge concrete countertop from Solid Concrete Tops.

Adding an edge detail is a simple way to customize a concrete countertop and give a kitchen, bathroom, or tabletop a high-end, finished look. Edge details are created by using special edge forms while casting the countertop. Generally, the forms, or molds, are clamped onto a cabinet when pouring cast-in-place countertops. Many companies offer prefab edge forms in a variety of patterns. Two of the most popular options are bullnose and live edge.

Find contractors specializing in concrete countertops near me.

Concrete countertop edges come in a variety of shapes and sizes. Because concrete will take the shape of virtually any form or mold it is cast into it's possible to produce the look of stone, rope edges, vines, and more. Here are a few resources for countertop forms & molds.

Contractors can also make edge forms themselves, creating whatever design their client desires. This can be done by purchasing molding products, such as liquid rubber or liquid plastic and casting custom molds. Also, there are companies that will create custom molds and forms for contractors.

Edge Forms Add Custom Details to Concrete Countertops

Concrete can provide a traditional look for your countertop with old-world edge detail, such as this thick, ornate edge with corbel.

Part of concrete's uniqueness is the variety of edge forms that are available. Choose one that will complement the style of your room, such as this rock-edge look.

Forms attached to the edge of the countertop framing can be smooth, rough, or patterned, such as this rope detail. To get this look, a mold was created using wooden rope molding.

Learn more about concrete countertop forms.

Rubber Edge Molds

The use of rubber edge molds allows concrete countertop fabricators to create shapes that are not available in granite, tile, Corian, or Formica countertops. These forms are usually used in conjuction with wood supports or Melamine supports to provide backing and structure for the mold.

Here are a few rubber edge profiles:

Rope Edge from Concrete Solutions
Oaklear Edge from Concrete Solutions
Scoop Edge from Concrete Solutions

Shop concrete countertop forms & molds

Plastic Forms

Plastic forms are usually used for cast-in-place concrete countertop fabrication. Meaning, the countertop is cast on site. For example, contractors will take the forms and the concrete countertop mix to a person's kitchen and cast the countertops in the final position on top of the cabinets.

Pictured left: Plastic forms for concrete countertops from Concrete Countertop Solutions

There are a number of edge profiles available with plastic forms:

Foam Forms

Concrete countertop installers use foam forms for several reasons:

  1. They are quicker than forming with wood or Melamine because fabricators don't need to use any saws, routers or power tools to form the concrete countertop.

  2. These molds also allow for unique designs & shapes on the edges not available for granite, tile, or manufactured stone countertops.

Xtreme Series Forming System from Surecrete Design.
Foam Form Profile from Renew-Crete Systems.

Watch these videos on how foam forms are used:

Foam Forms for Making Concrete Counters
Time: 03:33

Building Sinks for Concrete Countertops
Time: 05:25

Forming with Melamine & Wood

Forming concrete countertops with melamine or wood can be cheaper, but it takes longer to complete. After a template is made, each edge needs to be cut with a table saw or circular saw. Once each piece is cut it will need to be screwed together to make the desired shape.

Pouring concrete in a melamine form from CHENG Concrete.
Melamine & wax mold from Concrete Countertop Institute.
100% Silicone Caulk in Melamine Countertop Form from CHENG Concrete.

The use of melamine or wood forms requires more detail work after the initial forming process (cutting & screwing the pieces together). The inside edges need to be filled with some type of material to prevent moisture from leaking out of the form as well as create an edge profile. Typically, concrete contractors use wax or 100% silicone caulk in the edges.

Using Silicone Caulk in Forming Concrete Countertops
Time: 02:58
Using 100% Silicone Caulk to Form Concrete Counters

Using Melamine to Form Concrete Counters
Time: 01:39
Using Melamine to Form Concrete Counters

Custom Concrete Countertop Molds

Molds & Mold Rubbers
Time: 03:45

Concrete molds for concrete countertops come in hundreds of standard shapes and sizes. However if you're looking for a unique pattern or style many concrete contractors can cast a custom mold, complete with edge detail.