Heavy-Duty Structural SIP Panels
£
£
Panel length:
Panel code:

CODE

INSULATION SIZE

PANEL THICKNESS

U VALUE

2.4m PRICE

IR 75-15

75 mm

105 mm

0.39

£127.99

IR 100-15

100 mm

130 mm

0.31

£136.99

IR 125-15

125 mm

155 mm

0.25

£150.99

IR 150-15

150 mm

180 mm

0.21

£165.99

IR 175-15

175 mm

205 mm

0.18

£184.99

IR 200-15

200 mm

230 mm

0.16

£205.99


Heavy-Duty Structural SIP Panels (15mm OSB)
105–230mm overall thickness • 2.4m and 3m lengths

Our heavy-duty SIP range is built for increased strength and a more robust feel, using 15mm OSB facings with an insulated core. It’s a great choice where you want extra rigidity and durability, while still achieving strong thermal performance. Select a panel length and code below to view U-values and transparent per-panel pricing.

All SIP panels are precision-made in our own factory for consistent quality and a smoother on-site build. Prices shown are per panel for 2.4m lengths. 3m pricing is available on request. Delivery is quoted separately based on your postcode and site access.
Heavy-Duty Structural SIP Panels are designed for projects that benefit from increased rigidity and a more robust panel build. This range uses 15mm OSB facings with an insulated core, offering a strong structural panel with dependable thermal performance. With options from 105mm to 230mm overall thickness, you can choose a specification that suits your build requirements and target U-value.

Use the selectors above to choose your panel code and view insulation thickness, overall panel thickness and U-values in the table below. Prices shown are per panel for 2.4m lengths, with 3m options quoted on request. All panels are precision-made in our own factory for consistent quality and an accurate fit on site — helping reduce waste and speed up installation.

Delivery is quoted separately based on your UK postcode and site access, and our team can confirm lead times and offloading requirements before dispatch.
Benefits of SIPs
Structural Insulated Panels (SIPs) are at the forefront of construction methods, and a key element to the future of the industry.
Superior Thermal Performance
High insulation values reduce heat loss and improve energy efficiency year-round.
Faster Build Time
Factory-cut panels significantly reduce on-site construction time.
Structural Strength
Engineered panels provide high load-bearing capacity and structural stability.
Airtight Construction
Reduced thermal bridging improves internal comfort and lowers energy costs.
Precision Manufacturing
CNC-cut panels ensure accurate fitting and reduced material waste.
Energy & Cost Efficiency
Lower labour time and improved insulation result in long-term savings.