Picture-Frame Mould & Deckle
The classic beginner build — two thrift-store frames and a square of window screen.
Steps
- 01
Remove glass, backing, and any cardboard from both frames. Keep only the wooden frame.
- 02
Sand any rough edges and seal both frames with 2 coats of varnish — this stops them rotting after dozens of dunkings.
- 03
Stretch the screen tight across the BACK of one frame (this becomes the mould).
- 04
Staple every 2 cm, pulling the screen drum-tight as you go. Trim excess.
- 05
The second frame stays empty — it's the deckle, and it sits ON TOP of the screened frame to define sheet edges.
- 06
Test by dipping in a vat of pulp; if water pools instead of draining, your screen mesh is too fine.
Materials5
- — Two identical wooden picture frames (5x7, 8x10, or A4 — same size)
- — A piece of fiberglass or aluminum window screen, 2 cm larger than the frame opening
- — A staple gun OR small tacks + hammer
- — Marine varnish or polyurethane (optional but recommended)
- — Sandpaper
Safety
Mostly hand tools and inert materials. Standard studio hygiene applies.
- ☐Work in a ventilated area; keep food and drink out of the studio
- ☐Read each material's safety data sheet (SDS) before starting
- ☐Have water, soap, and a first-aid kit accessible
Heuristic guidance derived from listed materials. Always consult each material's safety data sheet (SDS) and a qualified instructor before attempting.
Notes
Window screen has the perfect mesh size. Mosquito netting is too coarse; cheesecloth is too floppy. Aluminum screen lasts longer than fiberglass.