Treppenrechner

Die Eingaben verwenden US-Einheiten (ft/in/lb und USD); metrische Entsprechungen werden angezeigt, sofern verfügbar.

Berechnen Sie Stufen, Trittstufen und Stringer.

Stair Dimensions

Floor to floor height
Horizontal distance
Max 7.75" by code
Number of Stufen
Stufenhöhe
Auftrittstiefe
2R + T (target 24-25")
Stringerlänge
Benötigte Stringer

So berechnen Sie Stairs

Formel: Stufen = ceil(total rise ÷ desired riser). Riser height = total rise ÷ risers. Tread depth = total run ÷ (risers − 1). Stringer length = √(rise² + run²).

Code Requirements (IRC)

ParameterRequirement
Max riser height7.75 inches
Min tread depth10 inches
Min stair width36 inches
Max riser variation3/8 inch
2R + T comfort range24-25 inches

Tipp: Always check local building codes. Some areas have stricter requirements. Cut stringers from 2×12 lumber, minimum 3 stringers für 36-inch stairs.

FAQ

Standard stair rise?
Max 7.75 inches by IRC code. Ideal is 7 inches. Min tread 10 inches.
Steps für 8ft ceiling?
96" rise ÷ 7.5" = 13 risers (12 steps + floor). ÷ 7" = 14 risers.
What is a stringer?
Structural 2×12 board with notches supporting treads/risers. Minimum 3 für 36" wide stairs.
Stringer length?
sqrt(total rise² + total run²). 96" rise + 120" run = ~154" = 12.8 ft.

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