Stone Veneer Inside Corners

When installing manufactured stone veneer, one of the most common questions homeowners and contractors ask is: “what do I do about inside corners if inside corner pieces aren’t available?” Unlike outside corners, which often use pre-formed L-shaped stones, inside corners require a different approach, and it’s simpler than you might think.

Are stone veneer inside corner pieces available?

In most cases, manufactured stone veneer products do not include specific inside corner pieces. This is completely normal and part of standard installation practice. Instead of relying on specialty parts, skilled installers use flat pieces of stone veneer to create a clean, natural-looking inside corner.

How to create inside corners using flats

Here’s how professionals create seamless inside corners using flat stone veneer:

1. Alternate stone placement: when you reach an inside corner, start alternating the direction of your flat stones: on one row, run the flat stone into the corner along one wall. on the next row, overlap from the opposite wall. This technique mimics a natural interlocking effect, which looks organic and provides structural stability.

2. Trim for a tighter fit: in some cases, you may need to cut or shape a stone to ensure it fits snugly into the inside corner. Use a wet saw, angle grinder, or masonry blade to trim the flat pieces as needed.

3. Maintain a natural look: stagger seams and avoid lining up stone edges directly in the corner. Vary lengths and textures to keep the corner looking as natural as the rest of the wall.

Why flat stones are ideal for inside corners

Creating inside corners with flat manufactured stone veneer offers several practical and aesthetic benefits. This method provides flexibility with any stone veneer profile, allowing you to maintain a consistent look across different wall surfaces. By alternating and overlapping flat stones at the corner, you achieve a natural, seamless flow from one wall to the next. It also enhances bonding strength, as the overlapping joints create a more secure hold with the mortar. Best of all, using flat stones eliminates the need for specialty inside corner pieces, saving both time and material costs without compromising on appearance or durability.

Best stone profiles for inside corners

While this method works for all manufactured stone veneer types, certain styles, like ledge stone, fieldstone, and stacked stone, tend to blend most naturally at inside corners due to their irregular shapes and variable lengths.

Pro tip: before applying mortar, dry fit several pieces in the corner to ensure a good fit and natural transition. This extra step can help you avoid uneven joints or noticeable seams later on.

Stone veneer inside corners

If you're installing manufactured stone veneer and wondering how to handle inside corners without dedicated pieces, rest assured, using flat stones is the industry standard. With the right technique, you can create seamless, professional-looking inside corners that enhance the overall look of your project.

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