Making a slab-built ceramic mug: a step-by-step guide

Making your own ceramic mug is one of the most rewarding beginner projects — and slab building is the ideal method: no wheel needed, just rolled clay, a template, and a little patience. The one real pitfall? Dimensions. A mug built by eye often comes out too small after firing, or with a poorly proportioned handle.

In this guide we’ll build a clean mug, step by step, with a printable template that handles firing shrinkage and slab thickness for you.

What you’ll need

• Clay (stoneware or earthenware)

• A rolling pin and two guide sticks (for an even ~5 mm thickness)

• A canvas or work cloth

• A pottery knife / needle tool

• Slip (clay + water) for joining

• A rib or a sponge

• Your printed template (wall + base + handle)

Roll your slab between two sticks for an even thickness.

Step 1 — Prepare your slab

Roll the clay between two 5 mm guide sticks for a perfectly even thickness. An uneven slab means walls that dry unevenly and crack. Let it firm up slightly (soft-leather-hard): it should hold its shape without deforming, yet stay supple enough to roll.

Step 2 — Cut your template

This is where it all happens. Instead of working out the circumference by hand, generate your pattern with the tool: enter the finished diameter and height you want, your shrinkage percentage, and the slab thickness — it outputs a full-size template (developed wall + base + handle profile).

👉 Create your mug template for free

Print at 100 %, cut out the paper, lay it on your slab and cut the clay along the lines.

The template on the clay: just follow the lines.

Step 3 — Build the body

Roll the wall into a cylinder. Bevel both edges to be joined at 45°, score them, apply a little slip, then press the seam firmly together. Smooth the join inside and out: it’s the most fragile seam of the mug.

The rolled body, seam scored then smoothed.

Step 4 — Add the base

Set the cylinder on the base disc, trace the outline, cut. Score + slip all around, join, then reinforce the inside with a small coil smoothed into the join. Check there’s no air gap in the seam.

Step 5 — Shape the handle

Use the handle profile from your template for the correct developed length. Shape it, let it firm up flat for a few minutes (a too-soft handle sags), then attach it (score + slip) at two solid points. Smooth the joins with a damp finger.

The handle, firmed up then joined at two solid points.

Step 6 — Drying and firing

Dry slowly and covered (under loose plastic) for a few days: the handle and body must dry at the same rate, or it cracks. Then bisque, glaze, glaze firing.

Common mistakes to avoid

• Poorly joined seams → always score + slip, never join “dry”.

• Handle too thin or too soft → let it firm up before attaching.

• Drying too fast → the number-one cause of cracks.

• Forgetting shrinkage → without compensation, your 8 cm mug comes out at 7 cm. (The template handles it.)

FAQ

What slab thickness for a mug?

About 5 mm: sturdy enough to hold heat, thin enough to stay comfortable in the hand.

How much does a mug shrink when fired?

Depending on the clay, often 10 to 14 %. Measure your clay’s shrinkage once, then enter it in the template.

Can you make a mug from a slab without a wheel?

Yes — that’s the whole point: slab building needs no wheel, just a rolling pin and a template.

The result: a mug in your dimensions, built without a wheel.

A good mug starts with a good template. Enter your sizes, print, cut — and focus on the pleasure of building the piece.

👉 Generate your mug template now — free, no install.

Read next: How to measure your clay’s shrinkage

For more slab-building projects, explore eight pottery ideas without a wheel