Description
The 60x20 corner hearth template represents the most popular size specification for residential corner fireplace installations, balancing generous proportions with practical space requirements. This mid-size corner configuration accommodates standard and oversized fireplace openings while providing the extended depth necessary for compliance with most building codes requiring 18-inch minimum extension from the firebox opening. The L-shaped design maximizes corner utilization in great rooms, family rooms, and master bedroom fireplace installations. Designed for professional fabricators, this template ensures precise dimensional accuracy when cutting natural stone, engineered quartz, or solid surface materials on CNC equipment. The 60-inch width provides ample coverage for medium to large fireplace surrounds, while the 20-inch depth offers additional safety clearance beyond minimum code requirements. This extra dimension proves particularly valuable in wood-burning installations where ember protection is paramount, and provides comfortable space for decorative accessories or fireplace tools.
Dimensions
- Overall Width
- 60"
- Overall Depth
- 20"
Specifications
- Downloads
- 0
Related Templates
The 60x20 corner hearth template represents the most popular size specification for residential corner fireplace installations, balancing generous proportions with practical space requirements. This mid-size corner configuration accommodates standard and oversized fireplace openings while providing the extended depth necessary for compliance with most building codes requiring 18-inch minimum extension from the firebox opening. The L-shaped design maximizes corner utilization in great rooms, family rooms, and master bedroom fireplace installations. Designed for professional fabricators, this template ensures precise dimensional accuracy when cutting natural stone, engineered quartz, or solid surface materials on CNC equipment. The 60-inch width provides ample coverage for medium to large fireplace surrounds, while the 20-inch depth offers additional safety clearance beyond minimum code requirements. This extra dimension proves particularly valuable in wood-burning installations where ember protection is paramount, and provides comfortable space for decorative accessories or fireplace tools.
Installation Overview
Proper installation of a 60x20 corner hearth begins with substrate preparation and structural verification. The supporting structure must be capable of bearing approximately 200-250 pounds of concentrated load at the corner junction, depending on material selection and thickness. For new construction, reinforce floor joists beneath the hearth location with double or triple joists, or pour a concrete pad extending 6 inches beyond the hearth perimeter. Position the hearth template on-site before cutting to verify fit and clearances. Mark the exact placement ensuring both legs of the L-shape maintain equal distance from their respective walls, typically leaving a 1/4-inch reveal for visual balance. The National Fire Protection Association (NFPA) requires hearth extension to be non-combustible and extend at least 16 inches beyond the firebox opening; this 20-inch depth template exceeds that requirement. Level the support structure in both directions before setting the stone, using high-strength mortar or construction adhesive rated for heat exposure up to 500掳F.
CNC Cutting Notes
Programming this corner hearth template for CNC fabrication requires attention to the internal miter joint where precision directly impacts installation success. Begin by importing the DXF file into your CAM software and verifying that the corner angle reads exactly 90.00 degrees鈥攅ven 0.5-degree deviation will create visible gaps during installation. Establish your origin point at the outer corner of the L-shape for consistent dimensional reference. For the cutting sequence, start with any interior penetrations or decorative elements, then proceed to the miter cuts, and finish with perimeter cuts. This sequence maintains maximum slab rigidity during critical precision cuts. When cutting the 90-degree corner, use a climb-cutting direction to push material into the slab body rather than toward the edge, reducing chip-out potential. Reduce spindle speed by 10-15% and feed rate by 20% within 6 inches of the corner apex to minimize vibration that could cause microcracking. A finishing pass at 0.5mm depth with a fine diamond wheel produces superior edge quality on the miter surfaces that will mate during installation.
Material Compatibility
This 60x20 corner hearth template is engineered for compatibility with all standard countertop materials used in fireplace applications. Granite remains the preferred choice for wood-burning fireplaces due to its exceptional heat resistance, dimensional stability under thermal cycling, and natural variation that conceals soot or minor surface discoloration over time. Black, brown, and dark gray granite varieties provide the most forgiving appearance for active fireplace use. Engineered quartz surfaces work beautifully for gas fireplace installations and electric fireplace surrounds where heat exposure remains minimal. However, verify with your quartz manufacturer that their product is rated for the expected temperature range鈥攎ost manufacturers limit quartz to applications where surface temperature stays below 300掳F. For authentic period restoration or traditional aesthetics, consider limestone, soapstone, or slate, all of which offer excellent thermal properties and age gracefully with patina development from heat exposure.
Where to Buy
Download this professional-grade 60x20 corner hearth template free from Slabwise's comprehensive fabrication template library. The DXF file format ensures compatibility with all major CNC control systems and CAM software platforms including Alphacam, Vectric, RhinoCAM, and proprietary stone fabrication software. The template is production-ready with no registration, subscription, or licensing fees, making it accessible for both high-volume fabrication shops and independent craftsmen taking on custom hearth projects.