Attic flooring & raised loft boarding across Ireland.

Raised attic flooring over 300mm insulation costs €55 to €85 a m² supplied and fitted using 18mm P5 moisture-resistant tongue-and-groove chipboard on Loft Legs or timber counter-battens. Most homeowners book a complete package — an insulated folding attic stairs, hatch enlargement, LED light and 15 to 25 m² of raised flooring — which typically costs €950 to €2,400 inc. VAT. See our full attic flooring cost guide.

Yes — and you must never screw boards directly onto 100mm ceiling joists over 300mm mineral wool. Compressing mineral wool from 300mm down to 100mm cuts its thermal resistance (R-value) by more than 50% and traps condensation against the underside of the chipboard. Installers fit 175mm to 300mm polypropylene Loft Legs (or treated timber counter-battens) to support the T&G floor above the quilt with a ventilated air gap. See raised attic flooring over insulation.

An EN 14975 insulated 3-section folding timber attic stairs (such as a Stira, Fakro LWK Komfort or Dolle ClickFix) costs €350 to €650 supplied and fitted, including trimming or enlarging the ceiling hatch, fitting a draught-proof insulated trapdoor, architrave and a safety grab rail. Heavy-duty aluminium concertina stairs for narrow landings cost €520 to €850. See attic stairs installation.

Yes, for domestic loft storage. Modern prefabricated fink/W-truss roofs built in Ireland from the 1970s onwards are designed under Eurocode 5 / BS 5268 for a dead storage load of 25 kg/m² across the ceiling tie chord plus a 90 kg concentrated person load. Raised T&G boarding screwed to Loft Legs or cross-battens distributes weight evenly across multiple trusses. It is a storage deck, not a habitable bedroom conversion. See truss roof attic flooring.

If you claim the SEAI Better Energy Homes attic insulation grant (€1,300–€2,000), SEAI rules require the 300mm mineral wool (U-value 0.16 W/m²K) to remain uncompressed and the hatch to be insulated and draught-sealed. Boarding directly onto joists fails an SEAI inspection, whereas a raised deck installed above the full 300mm quilt with a breathable air gap preserves the 0.16 U-value and BER rating. See attic flooring & SEAI grants.

Almost every standard domestic job (an insulated folding attic stairs plus 15 to 25 m² of raised T&G boarding and an LED light) is completed in 4 to 7 hours on a single day. All panels are 1220×320mm loft boards carried cleanly through the hatch with dust sheets on your landing.

High-density polypropylene Loft Legs (175mm or 300mm XL, tested to 500kg per leg) are lighter on modern 35×75mm trussed rafters and create zero thermal bridging. Treated 150×44mm or 175×44mm timber counter-battens add rigidity on uneven older cut-roof joists or where heavy shelving is planned. See Loft Legs vs timber counter-battens.

One local attic flooring & loft boarding specialist covering your county. When you send the form, your details go to one specialist covering your county — never a directory of five competing callers. They confirm your joist depth, insulation thickness and hatch size and give you an itemised written quote.