contact us form for feedback. $$Run = {Run\,of\,steps \over Number\,of\,steps} = {177\,in \over 17} = 10.41\,in$$. 3 Riser Board Type. and Flush options to compare the differences. Now, if we consider a single step of the staircase, the total horizontal distance will be given by: $$Total\,Horizontal\,Distance = Run + Tread\,Overlap + Riser\,Thickness = 11.06\,in + 2\,in + 1\,in = 14.06\,in$$. The calculator works out all these distances using the method given below: $$A_1 = Rise × sin⁡\,\alpha_2 = 7.06\,in × sin\,57.46^o = 5.95\,in$$, $$A_2 = Stringer\,Width – A_1 = 12\,in – 5.95\,in = 6.05\,in$$, $$C_2 = \sqrt{Run^2 – {A_1}^2} = \sqrt{(11.06\,in)^2 – (5.95\,in)^2} = 9.32\,in$$, $$C_3 = A_1 × tan\,⁡\alpha_2 = 5.95\,in × tan\,57.46^o = 9.33\,in$$, $$B_1 = \sqrt{Rise^2 – {A_1}^2} = \sqrt{(7.06\,in)^2- (5.95\,in)^2} = 3.8\,in$$, $$B_2 = A_2 × tan⁡\,⁡\alpha_1 = 6.05\,in × tan⁡\,32.54^o = 3.86\,in$$, $$B_3 = (Rise -Tread\,Thickness) × cos⁡\,⁡\alpha_2 = (7.06\,in – 2\,in) × cos\,57.46^o = 2.72\,in$$, $$A_3 = (Rise – Tread⁡\,Thickness) × cos⁡⁡\,⁡\alpha_1 = (7.06⁡\,in – 2⁡\,in) × cos⁡⁡\,32.54^o = 4.26⁡\,in$$, $$A_4 = Stringer\,Width – A_3 = 12\,in – 4.27\,in = 7.74\,in$$, $$C_4 = A_4 × tan\,\alpha_2 = 7.74\,in × tan⁡\,57.46^o = 12.12\,in$$. stair stringer; height and width; tread and riser. 3/4 inch (1x8) 1 inch (5/4x6) 4 Nosing Overhang. Bottom Step Layout Example. However, a good guide is that any business or church, organization, office or commercial property should meet the given stair standards of your home country. The parameters asked should be entered in mm or items where it is applicable. Advanced Stair Stringer Layout Methods (English Edition) 8,95€ 2: Stair Tread Gauge and Shelf Layout Tool by Stair Gauge: 252,46€ 3: Stair Layout: 27,95€ 4: Simple Stair Stringer Layout (English Edition) 4,52€ 5: Stair Tread Gauge and Shelf Layout Tool by Stair Gauge: 207,65€ 6: Simplified Stair Layout: 17,83€ 7: Dream Planner by J.A. Click here for Inches. Thus, we transform the above formulae to get the vertical rise spacing: $$Rise\,of\,steps = Total\,Rise – Tread\,Thickness = 120\,in – 2\,in = 118\,in$$. manual  Toggle navigation. The stair stringer calculator allows you to perform online calculation of straight staircases on strings. Advanced Stair Stringer Layout Methods (English Edition) 8,95€ 2: Stair Tread Gauge and Shelf Layout Tool by Stair Gauge: 252,46€ 3: Stair Layout: 27,95€ 4: Simple Stair Stringer Layout (English Edition) 4,52€ 5: Stair Tread Gauge and Shelf Layout Tool by Stair Gauge: 207,65€ 6: Simplified Stair Layout: 17,83€ 7: Dream Planner by J.A. Contour Gauge is a precision The Empire 6 in. Provides a step by step display and a print out option showing the finished stringer with cut dimensions and a materials list. Click They are cut from 2x12s or larger material - the uncut portion of the stringer should not be less than 5 inches (127 mm) (see diagrams below). If you have any questions, please Contact Us. Either, follow these calculations through, or simply use the calculator to get your DIY project off to a breeze! I purchased this and it assisted. The stringer length is the tip-to-tip length of the cut stringer. and Flush options to compare the results. STAIR CALCULATOR. 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