Description
This premium DXF template delivers precise specifications for fabricating compact 36-inch stone stair treads with a classic bullnose nosing profile in robust 3cm thickness. The combination of modest width and substantial thickness creates an ideal solution for narrow staircases where structural strength and traditional aesthetics are both priorities. At 3cm (1.181 inches) thick, these treads provide superior durability and longevity compared to thinner alternatives while maintaining the timeless elegance of the bullnose profile. The 36-inch width serves various architectural applications including secondary staircases, basement access, commercial back stairs, and residential installations where space efficiency is important. The increased thickness provides enhanced span capability, allowing for wider spacing between support stringers and greater resistance to cracking under point loads. The bullnose nosing profile offers a refined, rounded edge that has been the standard of quality in stone stair construction for generations, providing both visual appeal and a smooth, safe edge transition.
Dimensions
- Overall Depth
- 12"
Specifications
- Downloads
- 0
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This premium DXF template delivers precise specifications for fabricating compact 36-inch stone stair treads with a classic bullnose nosing profile in robust 3cm thickness. The combination of modest width and substantial thickness creates an ideal solution for narrow staircases where structural strength and traditional aesthetics are both priorities. At 3cm (1.181 inches) thick, these treads provide superior durability and longevity compared to thinner alternatives while maintaining the timeless elegance of the bullnose profile. The 36-inch width serves various architectural applications including secondary staircases, basement access, commercial back stairs, and residential installations where space efficiency is important. The increased thickness provides enhanced span capability, allowing for wider spacing between support stringers and greater resistance to cracking under point loads. The bullnose nosing profile offers a refined, rounded edge that has been the standard of quality in stone stair construction for generations, providing both visual appeal and a smooth, safe edge transition.
Installation Overview
Installing 3cm stone treads follows professional installation standards with the benefit of working with more forgiving material thickness. The 3cm profile provides better bridging capability over minor substrate irregularities and reduces sensitivity to point loads during installation. Ensure substrate support along the rear edge and at intervals of 24-30 inches across the width, though 3cm material is more tolerant of support spacing than thinner alternatives. Apply construction adhesive or mortar in full-spread fashion for optimal load distribution. The bullnose edge should project uniformly 3/4 to 1 inch beyond the riser face. Verify level across width and depth before adhesive cure. The additional weight of 3cm material (approximately 55-65 lbs per tread) requires two-person handling but provides stability during installation.
CNC Cutting Notes
Cutting 3cm material provides fabricators with greater depth for profiling the bullnose radius, resulting in more pronounced and elegant curves. Use radius bits sized appropriately for 3cm depth, typically 2 to 2.5 inch radius for optimal proportion. Feed rates can be slightly faster than 2cm material due to increased rigidity, though the bullnose profile still requires reduction to 65-75% of straight-line speeds for quality edge finish. The increased material thickness demands robust vacuum or mechanical hold-down, particularly near the nosing overhang. Program multiple passes for the bullnose profile; roughing, semi-finish, and final polish passes produce the highest quality results. Adequate water cooling is essential due to the larger volume of material being removed during profiling operations.
Material Compatibility
This 3cm template accommodates all premium stone materials including granite, marble, quartzite, and engineered quartz. The increased thickness makes it particularly suitable for softer materials like marble and limestone, which benefit from the added mass for structural performance. Exotic granites with dramatic veining can be showcased confidently in 3cm thickness, as the material integrity supports the 36-inch span reliably. Engineered quartz in 3cm provides maximum durability for commercial or high-traffic residential applications. The bullnose profile can be executed successfully in materials that might be problematic at 2cm thickness, expanding your options for unique stone selections.
Where to Buy
Stone stair treads in 36-inch width with bullnose profiles are standard offerings at most professional stone fabrication shops. The 3cm thickness is widely stocked by suppliers, making material sourcing straightforward. Contact local stone fabricators and ask about their stair tread capabilities; most shops equipped for countertop work can produce quality bullnose treads. Expect turnaround times of 1-2 weeks for custom fabrication, with many fabricators offering material selection assistance and installation services. Request samples showing the bullnose radius profile and finish quality before committing to full orders, ensuring the final product matches your design vision.