Chart standing · US
What changed · US
Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.
V1.3 — commercial codes, handrail checks, and framing-square layout. COMMERCIAL, INDUSTRIAL & ACCESSIBLE CODES - New code sets beyond residential: IBC (commercial), OSHA 1910.25 (industrial), and ADA - IBC 7-inch max riser and 11-inch tread; OSHA 9-1/2-inch riser with a 30-50 degree pitch window - ADA nosing projection and 1/2-inch leading-edge radius limits - Pick the code that fits the job right in Settings HANDRAIL & GUARD CHECKS - Handrail height 34-38 inches and guard height (36 inches residential, 42 inches commercial) - Graspability: Type I round (1-1/4 to 2 inch) and Type II perimeter (4 to 6-1/4 inch) FRAMING SQUARE LAYOUT - Framing-square body (rise) and tongue (run) settings for your exact stair - Per-step diagonal, total board layout, bottom-riser drop, and a full step-off table TREAD THICKNESS & NOSING - Set tread thickness (drives the bottom-riser drop) and nosing projection - Nosing checks per code, reflected live in the 3D preview IMAGE EXPORT - Export a high-resolution PNG of the full stair spec sheet to share or save to Photos Still 100% offline. No tracking, no accounts, no servers. Camera used only when you tap Measure.
About
What does StairPlan do? Calculates stringer length, riser height, tread depth, and pitch angle for any staircase. Enter total rise and tread depth, get instant results plus an IRC R311.7 compliance check. Is my data private? 100% offline. Nothing leaves your iPhone. No accounts, no analytics, no ads, no tracking. How do I get started? 1. Enter total rise (floor to floor height) 2. Enter desired tread depth (default 10 inches) 3. Read off riser count, riser height, stringer length, and pitch angle What can I do with it? - Real-time stair calculations with imperial fractions or metric - IRC R311.7 compliance warnings (riser height, tread depth, max flight, sum rule) - Save unlimited stair projects with custom names and notes - Export scale PDF cut diagrams to print and tape to your wall - Side view visualization updates as you type - Reference section with IRC code, formulas, and cutting instructions What units does it support? Imperial (feet and inches with fractions to 1/16) and Metric (millimeters and centimeters). Will the PDF print at actual size? Yes. PDF output uses 1 inch = 72 points so the cut diagram prints at true scale on letter or A4 paper. Tape it to your stringer board and trace. Who is this for? Carpenters, finish carpenters, deck builders, renovation contractors, and DIY homeowners building porch steps, deck stairs, or interior staircases. How much does it cost? 3-day free trial, then $1.99/week, $4.99/month, $29.99/year, or $79.99 lifetime. Terms of Use: https://taxlite.net/stair_stringer_calc/terms.html Privacy Policy: https://taxlite.net/stair_stringer_calc/privacy.html
What's new · 1.5.1
V1.3 — commercial codes, handrail checks, and framing-square layout. COMMERCIAL, INDUSTRIAL & ACCESSIBLE CODES - New code sets beyond residential: IBC (commercial), OSHA 1910.25 (industrial), and ADA - IBC 7-inch max riser and 11-inch tread; OSHA 9-1/2-inch riser with a 30-50 degree pitch window - ADA nosing projection and 1/2-inch leading-edge radius limits - Pick the code that fits the job right in Settings HANDRAIL & GUARD CHECKS - Handrail height 34-38 inches and guard height (36 inches residential, 42 inches commercial) - Graspability: Type I round (1-1/4 to 2 inch) and Type II perimeter (4 to 6-1/4 inch) FRAMING SQUARE LAYOUT - Framing-square body (rise) and tongue (run) settings for your exact stair - Per-step diagonal, total board layout, bottom-riser drop, and a full step-off table TREAD THICKNESS & NOSING - Set tread thickness (drives the bottom-riser drop) and nosing projection - Nosing checks per code, reflected live in the 3D preview IMAGE EXPORT - Export a high-resolution PNG of the full stair spec sheet to share or save to Photos Still 100% offline. No tracking, no accounts, no servers. Camera used only when you tap Measure.
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