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MAKEWORKS
Surfaces/Masonite (Hardboard) Painting Panel
EasyHardware$3–$8 per panelSafety: Moderate Risk

Masonite (Hardboard) Painting Panel

A sheet of smooth hardboard from the home-improvement store is the cheapest pro-grade panel.

For
Oil, acrylic, encaustic
Cost
$3–$8 per panel

Steps

  1. 01

    Cut to size; sand the edges and lightly scuff the smooth side for tooth.

  2. 02

    Wipe clean with a damp cloth, let dry.

  3. 03

    Brush PVA + water (1:1) on both sides to seal — this prevents warping.

  4. 04

    Apply 3 coats of gesso to the painting side, sanding between.

  5. 05

    Optional: brace the back with strips of wood glued cross-grain for large panels.

Materials
4
  • — 1/8" or 1/4" smooth-faced hardboard (Masonite)
  • — Saw or have the store cut to size
  • — Sandpaper
  • — Gesso and a wide brush

Safety

Moderate Risk

Involves dust, mild chemistry, sharp tools, or solvents. Use PPE and ventilate.

Hazards identified
  • Sharp tools — cut hazard
Quick checklist
  • ☐Always cut away from your body and bracing hand
  • ☐Keep blades sharp; dull tools slip
  • ☐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

1/4" masonite is rigid up to about 16x20". For larger work, brace the back.