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Step Stool Plans

A two-step stool made of two stacked boxes: a long lower box for the first step and a short upper box on its back half for the second. Each box has a back panel and a front rail, so it is rigid in every direction and will not tip when someone steps on the front edge. It is a simple wood step stool for the kitchen or a child’s bathroom.

Default size
400 × 450 × 400 mm
Parts
10 pieces · 8 sizes
Sheets (2440 × 1220 mm (4 × 8 ft))
1 carcass
Difficulty
Easy
Build time
About 3 hours
Edge band
3.9 m
Step stool plan shown in 3D

Change the size

Parts
8 types
Sheets
🔒
Edge band
🔒

Cut list (default size)

PartQtyLengthWidthThick.BoardEdges
Lower step140040018Carcass board 18 mm
Lower side240020718Carcass board 18 mm
Lower back136420718Carcass board 18 mm

Sizes in millimetres; length runs along the grain. Edges: bold lines are banded.

5 more parts, the sheet layout and the cut order are in the full plan.Resize it to any size, print labels and save it in a project.Sign in free to open it

How it is built

  • The stool is two boxes: the upper box stands on the back half of the lower step and is screwed down through it.
  • Each box has a back panel and a front rail under its step, so it cannot rack.
  • Round all edges and corners, and add non-slip strips to the steps.

Common mistakes

  • Making the stool narrow and tall: it tips sideways. Keep the width at least 300 mm, more for taller stools.
  • Leaving the front rails out: the step flexes and the joints loosen.

Tools you need

  • Circular saw or table saw
  • Drill/driver
  • Sander
  • Clamps

Frequently asked questions

How high should a step stool be?

For a child at the bathroom sink, about 300–400 mm (12–16 in) to the top step; for an adult reaching a high shelf, 450–500 mm. Each step should rise 150–230 mm.

How deep should the steps be?

At least 180–200 mm (7–8 in) per step so a whole foot fits. The plan splits the depth evenly between the two steps.

What board is best?

18 mm (3/4 in) plywood: it holds screws in its edges and does not break if the stool is dropped. Round every edge and corner.

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