Description
This professional DXF template provides complete fabrication specifications for a 42-inch wide stone stair tread featuring anti-slip safety grooves and laminated 2cm+2cm construction. The extended 42-inch width accommodates wider stair applications including grand staircases, commercial installations, and architectural stairs requiring broader tread dimensions. Laminated construction bonds two 2cm stone pieces to create a robust 4cm (approximately 1.575 inches) assembly that delivers exceptional strength while managing the increased span effectively. Wider stone stair treads create impressive architectural statements in residential and commercial environments, providing generous foot placement space and enhanced visual impact. The laminated 2cm+2cm technique offers superior strength compared to single-piece alternatives, particularly important for longer spans where stress and deflection risks increase. The anti-slip grooved design incorporates safety channels near the nosing edge to prevent slipping across the full 42-inch width. The 12-inch depth maintains code-compliant dimensions while the 1-inch nosing overhang provides comfortable transitions. Fabricators receive comprehensive specifications including anti-slip groove placement optimized for the wider format, nosing profile geometry, lamination reference lines, and complete CNC toolpaths. The template supports granite, marble, quartzite, and engineered quartz materials, compatible with all major CNC fabrication systems and CAD software platforms.
Dimensions
- Overall Depth
- 12"
Specifications
- Downloads
- 0
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Stair Tread - Anti-Slip Grooved - 42" - 2cm
This professional DXF template provides complete fabrication specifications for a 42-inch wide stone stair tread featuring anti-slip safety grooves and laminated 2cm+2cm construction. The extended 42-inch width accommodates wider stair applications including grand staircases, commercial installations, and architectural stairs requiring broader tread dimensions. Laminated construction bonds two 2cm stone pieces to create a robust 4cm (approximately 1.575 inches) assembly that delivers exceptional strength while managing the increased span effectively. Wider stone stair treads create impressive architectural statements in residential and commercial environments, providing generous foot placement space and enhanced visual impact. The laminated 2cm+2cm technique offers superior strength compared to single-piece alternatives, particularly important for longer spans where stress and deflection risks increase. The anti-slip grooved design incorporates safety channels near the nosing edge to prevent slipping across the full 42-inch width. The 12-inch depth maintains code-compliant dimensions while the 1-inch nosing overhang provides comfortable transitions. Fabricators receive comprehensive specifications including anti-slip groove placement optimized for the wider format, nosing profile geometry, lamination reference lines, and complete CNC toolpaths. The template supports granite, marble, quartzite, and engineered quartz materials, compatible with all major CNC fabrication systems and CAD software platforms.
Installation Overview
Installation of 42-inch wide treads demands careful planning and execution. Verify stair substrate provides continuous support across the full 42-inch width and 12-inch depth. The laminated 4cm thickness provides excellent stability for this span. Due to increased width and weight, ensure structural supports (stringers or substrate) are rated for the load. Apply high-strength construction adhesive or thin-set mortar with complete coverage across the full tread footprint. Position requires minimum two-person team due to size and weight. Verify the 1-inch nosing overhang maintains consistent alignment across the full 42-inch width. Check level both front-to-back and side-to-side, shimming if necessary. Anti-slip grooves should face the front edge. Allow extended cure time given the larger adhesive area - minimum 48 hours before foot traffic. For exterior installations, use frost-resistant materials and appropriate waterproofing. Professional installation is strongly recommended for wider tread formats.
CNC Cutting Notes
Fabricate each 2cm piece separately before lamination. The 42-inch width requires careful material selection to ensure pieces come from matching slab sections for color consistency. Cut anti-slip grooves into the top 2cm piece - typically 1/4 to 3/8 inch wide channels positioned 1 to 2 inches from the nosing edge. For wider treads, consider additional groove rows for enhanced slip resistance across the extended width. Groove depth should be 1/8 to 3/16 inch. Program the nosing profile on the bottom 2cm piece - common profiles include bullnose or bevel. The 42-inch length requires adequate CNC bed size or creative fixturing. Use sharp diamond tooling for natural stone, carbide for engineered quartz. After individual pieces are finished, bond using two-part structural epoxy or approved lamination adhesive with appropriate clamping across the full width. Allow complete cure time. The laminated assembly creates strong unified tread suitable for the extended span. Finish exposed edges consistently across the full 42-inch width.
Material Compatibility
Ideal for dense granite varieties providing structural integrity across the 42-inch span. Absolute black granite, steel grey, and other low-porosity granites offer excellent durability. Engineered quartz materials perform exceptionally well due to uniform density and engineered strength characteristics. The 42-inch width requires careful slab selection to ensure sufficient material dimensions - verify slab size before committing to fabrication. Quartzite works well but select varieties with consistent thickness. For laminated construction, both pieces must come from matching material lots to ensure color and pattern consistency across the wider format. Verify materials meet slip-resistance requirements. The extended width showcases stone grain patterns dramatically - consider visual flow when selecting and orienting materials.
Where to Buy
This professional DXF template is available as free download from Slabwise. Natural stone slabs in 2cm thickness suitable for 42-inch wide stair treads require larger slab dimensions - work with wholesale distributors carrying jumbo-sized granite, marble, and quartzite slabs. Engineered quartz materials in 2cm with adequate dimensions can be sourced from Caesarstone, Cambria, Silestone, HanStone, and other premium manufacturers offering larger format slabs. Structural adhesives for lamination are available from Tenax, Akemi, and stone fabrication suppliers. Verify adhesive coverage requirements for the larger surface area of 42-inch treads.