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Best Plasterboard & Plastering Supplies UK (2026) — Page 4

Plasterboard sheets, plaster and jointing compound.

Read our full Best Plasterboard & Plastering Supplies UK (2026) guide.

37.5mm Insulated Plasterboard, 1200 x 1200mm x 20 Boards - 28.8m2 (25mm PIR Insulation & 12.5mm Plasterboard)

#19 Pick

37.5mm Insulated Plasterboard, 1200 x 1200mm x 20 Boards - 28.8m2 (25mm PIR Insulation & 12.5mm Plasterboard)
Rated 4.9 out of 5 stars (24)
  • PIR Insulated Plasterboard
  • 1200 x 1200 x 37.5mm

£577.99

Pros

  • 25mm PIR insulation core bonded to 12.5mm plasterboard cuts out a separate insulation-fixing job
  • Full pallet of 20 boards covers 28.8m2, enough for a typical extension or garage conversion
  • Improves U-values on internal wall linings without losing much room space

Cons

  • High order value and pallet delivery means it suits planned bulk jobs rather than small patches
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Pros

  • CONTENTS: 6 x Polystyrene Sheets | SIZE: Each square-edged sheet measures 1200mm (Length) x 600mm (Width) x 50mm (Height) | TYPE: EPS 70 | THERMAL CONDUCTIVITY: Low (0.038 - 0.030 W/mK) | BBA CERTIFIED for BS EN 13163:2012 | MADE in UK
  • USE #1 - INSULATION BOARD: Energy-efficient, damp-proof & odourless insulation foam for thermal insulation. Use for wall & floor insulation, shed insulation or as polystyrene ceiling tiles - these are BBA certified construction boards!
  • USE #2 - PROTECTIVE PACKAGING: Shock-proof, impact-resistant & lightweight packing foam sheet for cushioning fragile items, box lining or interleaving flat items (e.g. glass panels) - prevent damage & keep items in place during shipping & storage!
  • USE #3 - ARTS & CRAFT: Non-toxic & non-irritant, these white polystyrene sheet are perfect for 3D model making, sculpting, floral arrangements, diorama, DIY hobby & school projects - cut, carve, sand, glue & paint this foam block with ease!

Cons

  • Does not provide sound insulation.
  • Not suitable for outdoor use without protection.
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Pros

  • HTUK Expanded Polystyrene Foam Sheets EPS 70 600 x 400 x 25mm
  • Pack of 5, 10 Or 25 sheets, please select the quantity you require.
  • Size: 600mm x 400mm x 25mm (each)
  • Thermal conductivity: Low (0.038 - 0.030 W/mK)

Cons

  • Limited quantity options (5, 10, or 25 sheets only).
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