Where to buy insulation by thickness?

You can buy insulation by thickness from Insulation Wholesale. We stock multiple materials across a full depth range, so you can choose the material that best fits your construction build-up, without compromising. Our team helps match insulation thickness to your application, whether for floors, walls, roofs, or specialist applications. We supply UK stock and support both trade and DIY customers with clear advice and reliable delivery.

What insulation thickness is best?

There is no single “best” insulation thickness. The right choice depends on the space available, the target U‑value, and the material used. A thinner high‑performance foam can outperform a thicker fibrous product, while deeper mineral wool can give better sound control and fire resistance. Choose the thickest insulation that fits without compression while complying with UK Building Regulations.

Can different materials be mixed at the same thickness?

Yes, you may combine materials - as long as they are compatible and correctly detailed. You can combine a rigid board layer with mineral wool of the same depth to improve thermal control and sound absorption, for example. The key is to maintain continuity with no air gaps. Do a full vapour control and condensation risk assessment before combining materials.

Insulation By Thickness At Wholesale Prices

25mm Superglass Acoustic Partition Roll Insulation 27.00m2 Roll

Superglass-Acoustic-Roll-APR-Application

25mm Superglass Acoustic Partition Roll Insulation 27.00m2 Roll

25mm Superglass Acoustic Partition Roll (APR) is a lightweight, non-combustible glass mineral wool insulation roll. It is suitable for the following applications: internal walls and floors, timber and metal stud partitions, drylining systems and separating walls and floors. Manufactured at a minimum density of 10kg/m³.

£48.25£57.90 Ex VATInc VAT
£1.79£2.15 Per m2

Insulation By Thickness

Insulation By Thickness Range

2mm Insulation (1)

3mm Insulation (2)

5mm Insulation (6)

6mm Insulation (3)

8mm Insulation (1)

9mm Insulation (3)

10mm Insulation (2)

12mm Insulation (5)

15mm Insulation (7)

18mm Insulation (1)

20mm Insulation (24)

25mm Insulation (86)

27mm Insulation (2)

30mm Insulation (29)

37.5mm Insulation (6)

40mm Insulation (24)

42.5mm Insulation (1)

45mm Insulation (2)

48mm Insulation (2)

50mm Insulation (62)

50.5mm Insulation (1)

52.5mm Insulation (6)

57.5mm Insulation (1)

60mm Insulation (40)

62.5mm Insulation (7)

65mm Insulation (1)

70mm Insulation (19)

72.5mm Insulation (6)

75mm Insulation (42)

80mm Insulation (27)

82.5mm Insulation (4)

85mm Insulation (2)

90mm Insulation (25)

92.5mm Insulation (2)

100mm Insulation (63)

110mm Insulation (11)

115mm Insulation (4)

120mm Insulation (22)

125mm Insulation (11)

130mm Insulation (16)

140mm Insulation (23)

150mm Insulation (36)

165mm Insulation (2)

180mm Insulation (2)

200mm Insulation (6)

Products in Insulation By Thickness

25mm Superglass Acoustic Partition Roll Insulation 27.00m2 Roll

25mm Thick 108mm Diameter Rockwool Insulated Fire Sleeve 300mm

25mm Thick 108mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm

25mm Thick 114mm Diameter Rockwool Insulated Fire Sleeve 300mm

25mm Thick 114mm Pipe Diameter Kingspan Kooltherm Pipe Lagging 1000mm

25mm Thick 114mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm

25mm Thick 127mm Diameter Rockwool Insulated Fire Sleeve 300mm

25mm Thick 127mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm

25mm Thick 140mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm

25mm Thick 159mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm

25mm Thick 15mm Pipe Diameter Kingspan Kooltherm Pipe Lagging 1000mm

25mm Thick 160mm Diameter Rockwool Insulated Fire Sleeve 300mm

25mm Thick 168mm Pipe Diameter Kingspan Kooltherm Pipe Lagging 1000mm

25mm Thick 169mm Diameter Rockwool Insulated Fire Sleeve 300mm

25mm Thick 169mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm

25mm Thick 17mm Diameter Rockwool Insulated Fire Sleeve 300mm

25mm Thick 17mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm

25mm Thick 219mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm

25mm Thick 21mm Diameter Rockwool Insulated Fire Sleeve 300mm

25mm Thick 21mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm

25mm Thick 22mm Pipe Diameter Kingspan Kooltherm Pipe Lagging 1000mm

25mm Thick 273mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm

25mm Thick 27mm Diameter Rockwool Insulated Fire Sleeve 300mm

25mm Thick 27mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm

25mm Thick 28mm Pipe Diameter Kingspan Kooltherm Pipe Lagging 1000mm

25mm Thick 34mm Diameter Rockwool Insulated Fire Sleeve 300mm

25mm Thick 34mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm

25mm Thick 35mm Pipe Diameter Kingspan Kooltherm Pipe Lagging 1000mm

25mm Thick 42mm Diameter Rockwool Insulated Fire Sleeve 300mm

25mm Thick 42mm Pipe Diameter Kingspan Kooltherm Pipe Lagging 1000mm

25mm Thick 42mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm

25mm Thick 48mm Diameter Rockwool Insulated Fire Sleeve 300mm