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ULTRASIPS
Timber 25mm - 72mm
From £8.35inc. VAT
3 options available
ULTRASIPS
Timber 100mm - 150mm
From £16.99inc. VAT
3 options available
ULTRASIPS
Garden room one SIP96
£4,642.80inc. VAT
ULTRASIPS
PIR Spline 96mm
£12.18inc. VAT
ULTRASIPS
PIR Spline 72mm
£9.98inc. VAT
ULTRASIPS
PIR Spline 47mm
£8.28inc. VAT
Custom Design Service Process
Submit Drawings
Provide your architectural drawings or rough sketches to get started.
Design Fee
Pay a small, fully refundable fee to initiate your custom SIPS kit design.
Custom Design
Our engineers create a precision kit design tailored to your project.
Manufacture & Ship
We fabricate your kit in our UK factory and deliver it ready for assembly.
Bring Your Vision to Life
From initial sketch to finished build, we support every type of project.
Start Your Custom Project Today
Join thousands of builders who have revolutionized their construction process with UltraSIPs
Get Started with a DesignSIP Panel U-Value Calculator
Calculate the thermal performance of your UltraSIPs panel
About U-Values
The U-value measures how well a building element transmits heat. Lower U-values indicate better insulation performance. Our SIP panels combine Sterling OSB structural boards with Celotex PIR insulation for exceptional thermal efficiency.
Technical Specifications
- Celotex GA4000/XR4000: λ = 0.022 W/mK
- Sterling OSB: λ = 0.13 W/mK
- Calculation Standard: BS EN ISO 6946