100mm insulation boards
100mm insulation boards for sale on Ireland's largest auction and classifieds sites
Celotex kingspan pir - kingspan, - £404.05
Full details can • Found our website • Blog - Free postage - New and Used
Full details can • Found our website • Blog - Free postage - New and Used
Celotex kingspan pir - celotex, - £278.25
2400 1200mm kingspan • Celotex sopratherm recticel • Ecotherm multiple thickness - Free postage - New and Used
2400 1200mm kingspan • Celotex sopratherm recticel • Ecotherm multiple thickness - Free postage - New and Used
Celotex kingspan pir - kingspan, - £284.17
Ideal new build • Refurb suitable general • Uses such under - Free postage - New and Used
Ideal new build • Refurb suitable general • Uses such under - Free postage - New and Used
Celotex kingspan 2400mm - 2400mm, x - £210.00
25mm 50mm 75mm • 100mm celotex kingspan • Recticel similar your - Free postage - New and Used
25mm 50mm 75mm • 100mm celotex kingspan • Recticel similar your - Free postage - New and Used
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Kingspan thermawall multi - kingspan, - £119.99
Can also used • Floor wall roof • Applied below suspended - Free postage - New and Used
Can also used • Floor wall roof • Applied below suspended - Free postage - New and Used
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48 listings · from £2.64 · avg £169.87
⚠️ These listings were last updated more than 14 days ago.
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Browse 48 100mm insulation boards listings currently in our index. Prices range from £2.64 to £1012.5, with an average of £169.87. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about 100mm insulation boards →
White foam packing sheets - white, all - £382.00
Man isle white • Wight channel islands • See map above - Free postage - New and Used
Man isle white • Wight channel islands • See map above - Free postage - New and Used
Xps insulation boards 20mm - boards, - £314.99
Xps 300 insulation • Board rebated edge • Top extruded polystyrene - Free postage - New and Used
Xps 300 insulation • Board rebated edge • Top extruded polystyrene - Free postage - New and Used
Expanded polystyrene eps70 - expanded, - £165.00
Ideal all types • Construction self building • Projects polystyrene sheets - Free postage - New and Used
Ideal all types • Construction self building • Projects polystyrene sheets - Free postage - New and Used
Tile backer cement - backer, coated - £4.99
These boards are • Constructed high compression • Super insulated core - Free postage - New and Used
These boards are • Constructed high compression • Super insulated core - Free postage - New and Used
Kingspan ecotherm celotex - kingspan, - £49.90
Board suitable use • Either between studs • Insulated sheathing flooring - Free postage - New and Used
Board suitable use • Either between studs • Insulated sheathing flooring - Free postage - New and Used
Xtratherm kingspan celotex - kingspan, - £59.40
Celotex kingspan xtratherm • Insulation board suitable • Use either between - Free postage - New and Used
Celotex kingspan xtratherm • Insulation board suitable • Use either between - Free postage - New and Used
100mm insulation - x, - £236.60
Pir insulation boards - Free postage - New and Used
Pir insulation boards - Free postage - New and Used
300 500 800 1000 - 800℃, 1000℃ - £50.58
Type insulation board • Effect energy saving • Adopt glass fiber - Free postage - New and Used
Type insulation board • Effect energy saving • Adopt glass fiber - Free postage - New and Used
Rockwool acoustic slab rwa45 - acoustic, - £62.37
Rockwool acoustic slab • Rwa45 mineral wool • Insulation board soundproofing - Free postage - New and Used
Rockwool acoustic slab • Rwa45 mineral wool • Insulation board soundproofing - Free postage - New and Used
Celotex kingspan recticel - /, - £46.46
Pir insulation board • Application floor walls • Roofs - Free postage - New and Used
Pir insulation board • Application floor walls • Roofs - Free postage - New and Used
Celotex seconds insulation - seconds, - £31.00
Celotex seconds 100mm • 200 plus boards • Available - Free postage - New and Used
Celotex seconds 100mm • 200 plus boards • Available - Free postage - New and Used
Pir insulation board 2400 - pir, - £49.00
2400mm 1200mm iko • Enertherm insulation boards • Are available several - Free postage - New and Used
2400mm 1200mm iko • Enertherm insulation boards • Are available several - Free postage - New and Used
Rockwool quality rwa45 - quality, - £38.85
Acoustic thermal insulation • Rockwool quality rwa45 • Slabs are high - Free postage - New and Used
Acoustic thermal insulation • Rockwool quality rwa45 • Slabs are high - Free postage - New and Used
Tile backer board pack ten - backer, - £4.99
Tile backer boards • Are ideal two • Reasons excellent waterproofing - Free postage - New and Used
Tile backer boards • Are ideal two • Reasons excellent waterproofing - Free postage - New and Used
KINGSPAN/RECTICEL/CELOTEX - £1012.50
Board suitable use • Either between studs • Insulated sheathing flooring - Free postage - New and Used
Board suitable use • Either between studs • Insulated sheathing flooring - Free postage - New and Used
Foamglas cellular glass - foamglas, t3+ - £130.70
Foamglas ready comprises • Slab top surface • Coated bitumen layer - Free postage - New and Used
Foamglas ready comprises • Slab top surface • Coated bitumen layer - Free postage - New and Used
White foam packing - foam, sheets - £199.00
Man isle white • Wight channel islands • See map above - Free postage - New and Used
Man isle white • Wight channel islands • See map above - Free postage - New and Used
3240 epoxy fiberglass - 3240, - £2.64
Model 3240 epoxy • Board electrical insulating • Fiberglass insulation sheet - Free postage - New and Used
Model 3240 epoxy • Board electrical insulating • Fiberglass insulation sheet - Free postage - New and Used
100mm insulation - 15, - £390.00
Pir insulation boards • 1.2 2.0 - Free postage - New and Used
Pir insulation boards • 1.2 2.0 - Free postage - New and Used
Expanded polystyrene sheets - expanded, - £39.00
Free samples grades • Can dispatched you • Inspection comparison 1200 - Free postage - New and Used
Free samples grades • Can dispatched you • Inspection comparison 1200 - Free postage - New and Used
Polystyrene eps insulation - , - £299.00
Polystyrene sheets 100mm • 2400 1200 ideal • All types construction - Free postage - New and Used
Polystyrene sheets 100mm • 2400 1200 ideal • All types construction - Free postage - New and Used
Kingspan tp10 roof insulation - roof, - £58.99
Kingspan thermapitch tp10 • Pitched roof insulation • Board suitable use - Free postage - New and Used
Kingspan thermapitch tp10 • Pitched roof insulation • Board suitable use - Free postage - New and Used
Rockwool rwa45 acoustic - rwa45, - £61.95
Rockwool rwa45 general • Building slab use • Acoustic thermal fire - Free postage - New and Used
Rockwool rwa45 general • Building slab use • Acoustic thermal fire - Free postage - New and Used
Rockwool acoustic slab rwa45 - rockwool, - £68.99
Rockwool acoustic slab • Rwa45 75mm 1200mm • 600mm insulation board - Free postage - New and Used
Rockwool acoustic slab • Rwa45 75mm 1200mm • 600mm insulation board - Free postage - New and Used
100mm celotex kingspan - 100mm, - £337.46
Ideal new build • Refurb suitable general • Uses such under - Free postage - New and Used
Ideal new build • Refurb suitable general • Uses such under - Free postage - New and Used
Celotex kingspan 100mm - kingspan, - £265.00
Your order much • Appreciated pride ourselves • Our service - Free postage - New and Used
Your order much • Appreciated pride ourselves • Our service - Free postage - New and Used
Seconds insulation 100mm - insulation, - £36.00
Celotex seconds 100mm • 300 plus boards • Available products not - Free postage - New and Used
Celotex seconds 100mm • 300 plus boards • Available products not - Free postage - New and Used
Rockwool external wall dual - rockwool, - £27.44
Rockwool external wall • Dual density slabs • Are high qualitymineral - Free postage - New and Used
Rockwool external wall • Dual density slabs • Are high qualitymineral - Free postage - New and Used
Polystyrene insulation eps70 - polystyrene, - £174.00
Ideal all types • Construction self building • Projects your order - Free postage - New and Used
Ideal all types • Construction self building • Projects your order - Free postage - New and Used
Celotex kingspan pir - /, - £70.20
Board suitable use • Either between studs • Insulated sheathing hhigh - Free postage - New and Used
Board suitable use • Either between studs • Insulated sheathing hhigh - Free postage - New and Used
Eps polystyrene sheets 1200 x - eps, - £25.00
Sheet sizes 1200 • 500 100mm highest • Quality grade material - Free postage - New and Used
Sheet sizes 1200 • 500 100mm highest • Quality grade material - Free postage - New and Used
10mm 150mm ceresit - [10mm, 150mm] - £67.50
Ceresit grey polystyrene • Graphite eps board • Ewi item details - Free postage - New and Used
Ceresit grey polystyrene • Graphite eps board • Ewi item details - Free postage - New and Used
100mm 1200mm 600mm - 100mm, - £99.99
100mm pir flat • Roof insulation powerdeck • Bba certified 1200mm - Free postage - New and Used
100mm pir flat • Roof insulation powerdeck • Bba certified 1200mm - Free postage - New and Used
Rockwool rwa45 acoustic sound - rwa45, - £336.00
Rockwool rwa45 has • Been developed thermal • Acoustic fire performance - Free postage - New and Used
Rockwool rwa45 has • Been developed thermal • Acoustic fire performance - Free postage - New and Used
Bakelite phenolic resin sheet - bakelite, - £3.83
- Free postage - New and Used
- Free postage - New and Used
Rockwool acoustic thermal - acoustic, - £205.00
Rockwool rwa45 insulation • Slab 100mm 1200 • 600 2.88m2 per - Free postage - New and Used
Rockwool rwa45 insulation • Slab 100mm 1200 • 600 2.88m2 per - Free postage - New and Used
Tile backer board - backer, - £4.99
6mm 10mm 20mm • 30mm tile backer • Boards are ideal - Free postage - New and Used
6mm 10mm 20mm • 30mm tile backer • Boards are ideal - Free postage - New and Used
Pir insulation foil backed - foil, - £66.00
Pir insulation boards • 2400mm 1200mm 100mm • Will monitor this - Free postage - New and Used
Pir insulation boards • 2400mm 1200mm 100mm • Will monitor this - Free postage - New and Used
Insulation recticel celotex - insulation, -recticel/celotex - £176.00
Easy cut install • Quick • Installation - Free postage - New and Used
Easy cut install • Quick • Installation - Free postage - New and Used
Isover 100mm cws cavity - 100mm, - £69.95
Thermal conductivity 0.036 • This incredible mineral • Wool insulation made - Free postage - New and Used
Thermal conductivity 0.036 • This incredible mineral • Wool insulation made - Free postage - New and Used
Xps insulation boards - insulation, boards-100mm - £314.99
Length 1250mm width • 600mm thickness 100mm • Thermal conductivity 0.035w - Free postage - New and Used
Length 1250mm width • 600mm thickness 100mm • Thermal conductivity 0.035w - Free postage - New and Used
Celotex kingspan insulation - kingspan, - £580.00
Celotex kingspan tp10 • 100mm foil faced • Urethane insulation general - Free postage - New and Used
Celotex kingspan tp10 • 100mm foil faced • Urethane insulation general - Free postage - New and Used
Polystyrene eps insulation - , 70 - £239.00
Polystyrene sheets 100mm • 2400 1200 ideal • All types construction - Free postage - New and Used
Polystyrene sheets 100mm • 2400 1200 ideal • All types construction - Free postage - New and Used
Try this: slate roof | insulation 100mm | drainage gully | cavity insulation | copper coil | plaster angle bead | rodding point | insulation boards 25mm | tyvek sheet | insulated board
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Everything you need to know about 100mm insulation boards
Whether you are looking for a brand-new or second-hand 100mm insulation boards, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £2.64, while premium listings can reach £1012.5 — giving you a wide budget spread to work with. The average price of £169.87 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.