Free Delivery
Basket ( 0 ): £ 0.00 Login Register

Browse Categories

Special offers

Recently Viewed

Marmox Multi Board - The Original Marmox Board

Marmox Multiboard is ideal for many applications. It's multipurpose use makes it ideal for waterproofing, insulating and dry lining.

One easy to install board – gives you both waterproofing AND insulation!

The Marmox Board offers you a wide range of advantages, including:

  • Waterproofing & a barrier against damp
  • Thermal insulation
  • Impact sound reduced by 25 decibels
  • Load bearing - 40 tonnes/m²
  • High flexural strength
  • CFC & HCFC & Asbestos free
  • Unaffected by freeze/thaw cycle 

Marmox Boards are high performance, reinforced, insulation boards made of waterproof extruded polystyrene, each side faced with fibreglass mesh embedded into a cement polymer mortar. Marmox Boards are the perfect solution for insulating and waterproofing in one operation.

Marmox Boards can be used for all kinds of applications, including:

  • Rigid boarding for partitions
  • Wet rooms
  • Loft conversions
  • Shower cubicles
  • Dry lining / insulation to cellars
  • Tile backing board
  • Under floor heating insulation

Multiboards can be used to insulate and waterproof walls, floors and ceilings and are available in many thicknesses ranging from 4mm to 60mm. 12.5mm, 20mm and 30mm are ideal for walls although thicker sizes can also be used. The thinner 4mm, 6mm and 10mm are ideal for covering floors before tiling. Especially usefull when used with underfloor heating wire to reduce your heating costs. The thicker the Multiboard the better the insulation.

Marmox Multiboards can be used all over the house as an insulation board and then simply tiled over or plaster finished. If using underneath carpet then a thin sheet of ply (10mm) or a fibre reinforced flooring compound should be used over the top before the carpet is laid down.



From £34.56 inc VAT £28.80 ex VAT per Pack
Code Description Unit Price (inc VAT) Quantity
738540040 4mm x 600mm x 1250mm Pack of 10 Boards £69.00
738540060 6mm x 600mm x 1250mm Pack of 8 Boards £53.76
738540100 10mm x 600mm x 1250mm Pack of 6 Boards £43.56
738540125 12.5mm x 600mm x 1250mm Pack of 6 Boards £52.92
738540200 20mm x 600mm x 1250mm Pack of 5 Boards £49.32
738540300 30mm x 600mm x 1250mm Pack of 4 Boards £48.00
738540400 40mm x 600mm x 1250mm Pack of 3 Boards £43.20
738540500 50mm x 600mm x 1250mm Pack of 2 Boards £34.56
738540600 60mm x 600mm x 1250mm Pack of 2 Boards £47.88

Delivery Information

  • Free delivery on orders over £200 or £20 charge applies
  • Deliveries will usually be made within 2 working days
  • We will require a signature on delivery
  • We could deliver your order on large vehicles needing good access. Please advise us in the comments in your order
Read more

Technical Information

Marmoxfittinginstructions pdfMarmoxfittinginstructions (244kb) DataSheet2013 pdfDataSheet2013 (139kb) DECLARATIONOFPERFORMANCEmultiboard pdfDECLARATIONOFPERFORMANCEmultiboard (375kb) INTERSTITIALCONDENSATION pdfINTERSTITIALCONDENSATION (300kb) MarmoxBBACertificate pdfMarmoxBBACertificate (2063kb) Marmox ebrochure 2017 pdfMarmox ebrochure 2017 (4408kb)
For further details on this product please contact us