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StairMark: Pre-Cut Stringer Template Service

A made-to-order laser-cut plywood template service that accepts a homeowner's stair calculations (rise, run, number of steps) and ships a full-scale stringer template that can be traced directly onto lumber. The template is cut from thin plywood with all step notches, angles, and reference marks pre-cut, eliminating calculation-to-wood transfer error entirely. Homeowners simply lay the template on their 2x12, trace, and cut.

PHYSICAL_PRODUCT

16 weeks • 70% confidence

Value Proposition

Eliminates the most error-prone step in stair building—manual measurement transfer—by replacing it with a physical, reusable, exact-match template. Reduces material waste, cuts rework time by 80%, and removes safety risk from geometry mistakes. Cheaper than hiring a pro ($150–300 vs. $800–1500), faster than trial-and-error, and requires zero specialized tools.

Target Audience

DIY homeowners and small residential builders tackling 1–3 stair projects per year; primarily those with basic carpentry skills but no access to expensive layout tools or willingness to hire professionals

Key Features

  • Customer uploads stair specs (total rise, run, number of steps, stringer width) via simple online form
  • Template includes full-scale notch cutouts, angle guides, and reference marks for tread/riser alignment
  • Laser-cut from 1/4" plywood for durability and reusability across multiple stringers
  • And more, with full implementation detail...

Tech Stack

CAD software (Fusion 360 or OpenSCAD) for parametric template design Shopify for e-commerce storefront Typeform or custom HTML form for stair spec capture Node.js script for order-to-CAD automation
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Original Problem

DIY builders struggle to accurately transfer complex stair calculations from digital designs to physical lumber without expensive tools or professional help

Homeowners and DIY enthusiasts who calculate stair stringers mathematically face a critical gap: converting precise numerical measurements into accurate physical markings on wood. Current solutions require either expensive layout tools, hiring professionals, or trial-and-error marking that wastes materials and creates safety hazards. This problem is painful because mistakes in stair geometry are dangerous, costly to fix, and difficult to correct once cut.

Score: 46.5%

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