Free templateBeginner

Square stool

Start your first mortise-and-tenon on a stool that's yours

Free template · build as many as you want · 30 min to grok joinery logic

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Square stool 3D preview

Square stool design details

What's distinctive about this template

Default square stool — 3D
Default square stool — 3D
Wireframe — see structure
Wireframe — see structure
Wireframe shows mortise / tenon positions on every leg and apron — all auto-computed

Design highlights

What this template's algorithm handles for you

🔨
Auto mortise layout
Through ≤25 mm / blind 2/3 algorithm auto-switches
↔️
X/Z apron stagger
Tenons never collide in the leg
📐
0–12° splay with compound
True leg length + table-saw angles given
🆓
Free template
Capped at 35×35×45 cm, build as many as you want

What this template builds for you

A four-leg square stool is the classic woodworking starter — four legs, four aprons, one seat. Get those six things right and you've already nailed 80% of furniture joinery fundamentals.

This template takes length × width × height and lays out every mortise position, tenon depth (through for ≤25 mm legs, blind at 2/3 depth above), and how the X-axis and Z-axis aprons must stagger so they don't collide in the leg. You stop worrying "are the legs too thin?" "will a thick apron split the leg?" — the algorithm checks for you, and the output is ready for the shop.

After one stool, every other piece of furniture starts to look like a scaled-up version of the same joinery: dining chairs, side tables, desks — same logic, bigger numbers.

Who this template suits

Recommended for

  • · First-timers learning mortise-and-tenon
  • · Want to design furniture without learning CAD
  • · Looking for a small gift project to practice on

× Not for

  • · Want to build large furniture (try dining-chair / dining-table)
  • · Pure design theorists who don't want to actually build

Parameters you can adjust

The algorithm auto-computes dimensions, joinery, and material usage.

L × W × H
Free plan capped at 35×35×45 cm; paid plans unlock any size
Leg profile
Square or round — algorithm auto-fits mortise shape
Apron height
Auto-scaled to seat width; flags when ratio is unsafe
Splay angle
0° straight / 5–12° splayed, includes compound-angle math

Square stool common dimensions

These numbers come straight from this template's adjustable ranges and defaults, so they update whenever the template does.

DimensionAdjustable rangeTemplate default
Lengthup to 500 mm (50 cm)350 mm (35 cm)
Width (depth)up to 500 mm (50 cm)350 mm (35 cm)
Heightup to 500 mm (50 cm)450 mm (45 cm)
Seat thickness12–60 mm (1.2–6 cm)25 mm (2.5 cm)
Leg size20–120 mm (2–12 cm)35 mm (3.5 cm)

Main dimensions list only the upper bound: the template has no meaningful lower limit. Values in mm with cm in brackets.

How to pick your sizes

  • As a dining stool use 42–45 cm seat height for a 72–75 cm table; an entryway shoe stool is 40–45 cm.
  • Keep the table-to-seat gap at 27–30 cm — measure your own table and work backwards.

Enter sizes, get everything

Six deliverables in one pass — print A4 and walk into the shop.

📐
Engineering views
Front / side / top auto-dimensioned
🪵
Perspective
3D rotatable, explodable, see inside
🔧
Joinery detail
Every joint zoomed and dimensioned
📊
Cut list
Per-part sizes, board-foot conversion, waste estimate
✂️
Cut layout
Optimized stock layout, minimum waste
📄
A4 PDF
One-click print for the shop

Real generated output

The screens below are actually generated from the Square stool template — apply your sizes and they update live.

Engineering views
Engineering views
Front / side / top fully auto-dimensioned
Cut layout
Cut layout
Algorithmic nesting, minimum waste — hand to the lumber yard and cut straight from it
Cut list
Cut list
Per-part sizes with board-foot conversion, printable for the shop
Build steps
Build steps
Stock prep through finishing, every step timed
3D perspective
3D perspective
Rotatable, explodable, see the joinery inside

※ These regenerate live whenever you tweak size, wood, or style

When you'd build one

Classroom

Pull up the designer on every student's phone, each enters their own size — 30 minutes from abstract idea to drawings they can build.

Weekend build

Enter sizes Friday night, buy stock Saturday, build Sunday — one stool in three days.

Gift build

Measure the actual corner in a friend's home, build a one-off size that fits — far more meaningful than another IKEA piece.

Father's Day

Start two weeks before — a stool engraved with his initials beats anything off a department-store shelf.

5 preset variations

Swap styles in one click — no need to re-adjust every parameter from scratch.

Straight-leg classic
Square straight legs — standard starter for learning mortises, easiest structure to reason about.
8° splayed
Legs leaning out 8° — visually lighter, compound geometry handled by the algorithm.
Tapered leg
Tapered toward the foot — common Nordic proportion, cuts apparent weight in half.
Wide-seat foot stool
Seat widened to 40 cm with a lower stretcher — works as a footstool or step.
Through-tenon decorative
Apron tenons run all the way through the leg, exposed end-grain on the outside — Ming-style traditional craft look.

FAQ

Why is the free plan capped at 35×35×45 cm?+

That's the natural "stool" envelope — anything larger becomes a low table and effectively a paid template. Upgrade to Personal to unlock any size.

Are thinner legs more elegant?+

Visually, yes. Structurally — too thin and once you cut a mortise there's barely any meat left to carry the load. The designer warns you when ratios go bad, but the final call is yours.

Can I build a round stool here?+

Round stools use a different leg algorithm (typically 3–4 splayed legs). Use the round-stool template instead.

How deep should the mortise be?+

Through tenon: depth = leg width. Blind tenon: 2/3 of apron thickness (e.g. 18 mm apron → 12 mm mortise). Too shallow pulls out; too deep blows out the back. The algorithm computes this from your apron thickness.

What tools do I need?+

Minimum: a saw (hand or table), 3 chisels (6/9/12 mm), a mallet, and either a hand drill or a mortiser. Power tools speed things up but hand tools work fine.

How to unlock "Square stool"

Free template — start building now

Free foreverUnlimited use

Square stool is a beginner-practice template — on the house from Wooden Ren

  • No signup, no payment, unlimited builds
  • 3D, joinery, 3-views, cut list and PDF — same as paid users
  • Only limit: a size cap (fits small practice builds)
Try free →

Start designing your Square stool

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