Fixed Step Ladder

Cotswold Workshop

Loading the 3D model…

Size at its defaults: 13.8 × 18.6 × 41.8 in (350 × 473 × 1061 mm)

Sliders

Envelope

Parameter	Name	Range	Default
Step Rise	`step_rise`	7.1–10.2 in (180–260 mm)	8.7 in (220 mm)
Step Depth (front to back)	`step_depth`	7.1–11.0 in (180–280 mm)	9.1 in (230 mm)
Ladder Width	`ladder_width`	11.8–17.7 in (300–450 mm)	13.8 in (350 mm)
Rail Rake	`rail_rake_deg`	12–25°	20°
Foot Drop Below Bottom Step	`foot_drop`	2.4–5.5 in (60–140 mm)	3.5 in (90 mm)
Rail Reveal Above Top Step	`rail_top_reveal`	1.6–3.9 in (40–100 mm)	2.4 in (60 mm)

Fit

Parameter	Name	Range	Default
Glue Relief	`glue_clearance`	0.0–0.0 in (0–0 mm)	0.0 in (0 mm)
Tread Tenon Thickness	`tenon_thickness`	0.2–0.6 in (6–16 mm)	0.4 in (10 mm)
Tread Tenon Shoulder (within rail width)	`tenon_shoulder`	0.4–1.0 in (10–25 mm)	0.8 in (20 mm)

Stock

Parameter	Name	Range	Default
Rail Thickness	`rail_th`	1.0–1.6 in (25–40 mm)	1.3 in (32 mm)
Rail Width	`rail_w`	2.8–4.3 in (70–110 mm)	3.5 in (90 mm)
Step Thickness	`step_th`	0.8–1.3 in (20–32 mm)	1.0 in (25 mm)

Techniques used

Licence: CC BY 4.0 (pending counsel review).