Description
This DXF template provides precise specifications for fabricating compact 36-inch stone stair treads with a traditional bullnose nosing profile in economical 2cm material thickness. The 36-inch width is ideal for narrow staircases, secondary stairs, basement access, loft stairs, and other applications where space constraints or design intent calls for more modest tread dimensions. The classic bullnose profile offers a timeless rounded edge that complements both traditional and contemporary architectural styles. At 2cm thickness (0.787 inches), this template optimizes material economy while maintaining adequate strength for residential applications with proper substrate support. The reduced thickness also simplifies installation in retrofit situations where additional tread thickness might create problematic transitions to adjacent flooring. The bullnose nosing creates a gentle, rounded transition from the horizontal tread surface to the vertical edge, providing both aesthetic appeal and a comfortable tactile experience. This profile has remained popular for decades due to its versatility and proven performance.
Dimensions
- Overall Depth
- 12"
Specifications
- Downloads
- 0
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This DXF template provides precise specifications for fabricating compact 36-inch stone stair treads with a traditional bullnose nosing profile in economical 2cm material thickness. The 36-inch width is ideal for narrow staircases, secondary stairs, basement access, loft stairs, and other applications where space constraints or design intent calls for more modest tread dimensions. The classic bullnose profile offers a timeless rounded edge that complements both traditional and contemporary architectural styles. At 2cm thickness (0.787 inches), this template optimizes material economy while maintaining adequate strength for residential applications with proper substrate support. The reduced thickness also simplifies installation in retrofit situations where additional tread thickness might create problematic transitions to adjacent flooring. The bullnose nosing creates a gentle, rounded transition from the horizontal tread surface to the vertical edge, providing both aesthetic appeal and a comfortable tactile experience. This profile has remained popular for decades due to its versatility and proven performance.
Installation Overview
Installation of 36-inch 2cm stone treads requires proper substrate preparation and adequate support spacing to prevent flexing or cracking. Ensure stringers or support walls are spaced no more than 18-24 inches on center for 2cm material. Apply construction adhesive or thin-set mortar in a continuous bead along support points, avoiding voids that could allow flexing under load. The bullnose nosing should project 3/4 to 1 inch beyond the riser face to meet typical building code requirements. Use a level to verify proper pitch across both the width and depth of each tread. The rounded nosing profile should be consistent along the entire front edge; verify with a straightedge during installation. Allow adequate cure time before traffic loads are applied.
CNC Cutting Notes
Programming for bullnose profiles requires radius-cutting bits specifically designed for stone fabrication, typically ranging from 1.5 to 2 inches in radius. The curved profile demands slower feed rates than straight cuts to maintain edge quality and prevent chipping, generally 60-70% of perimeter cutting speeds. For 2cm material, ensure adequate vacuum hold-down, particularly near the nosing overhang where material support decreases. Use progressive cutting depths rather than attempting the full profile in a single pass; roughing passes followed by finish passes yield superior edge quality. Maintain consistent water flow across the cutting area to manage dust and heat. Back-chamfer all edges slightly to prevent sharp corners that could chip during handling.
Material Compatibility
This 2cm template works well with granite, engineered quartz, and dense quartzite materials that provide good structural properties at reduced thickness. Engineered quartz performs exceptionally well due to its homogeneous structure and engineered strength characteristics. Natural granite should be selected for tight grain patterns without pronounced veining that could create weak points in the 36-inch span. Avoid soft materials like limestone or porous marble in 2cm thickness unless laminated for added strength. For materials with directional grain patterns, orient the grain to run perpendicular to the tread depth rather than parallel to the 36-inch length to minimize breakage risk along natural cleavage planes.
Where to Buy
Stone stair treads in standard 36-inch widths with bullnose profiles are available through most stone fabrication shops and countertop fabricators. This common dimension and classic profile mean many fabricators maintain templates and tooling ready for quick turnaround. Contact local stone yards and fabrication shops for quotes; expect turnaround times of 1-2 weeks for custom cutting. Many suppliers offer a range of granite and quartz colors in stock, allowing you to select materials and receive fabricated treads relatively quickly. Request samples showing the bullnose radius to ensure the profile matches your design expectations before ordering full quantities.