Our 122mm SIP panel with Celotex PIR core is built for customers who want a faster, more predictable route to an insulated shell. Instead of building up multiple layers on site, you start with a factory-made structural panel that helps reduce programme time, improve consistency, and create a cleaner base for the rest of the build.

At 122mm, this panel is a strong option for floors, lower-profile shells, and insulated structures where build-up and performance need to stay balanced. It is a strong option for self-builders, contractors, and designers who want a premium panel product that is straightforward to specify and easier to build with than traditional stud-based alternatives.

If you are pricing a bespoke garden room, extension, annexe-style shell, or other SIP-based structure, this product gives you the core panel element only. It is intended for customers who already know the panel thickness they need and want to build a better insulated envelope with fewer compromises.

• Useful where build-up and thermal performance need to stay balanced across floor or shell applications.
• Factory-manufactured SIP format supports faster installation and consistent panel quality.
• A strong starting point for customers pricing a practical insulated panel package.

Important: All images are for illustrative purposes only. This product is supplied as SIP panels only and does not include project-specific drawings, fixings, timbers, glazing, cladding, roof finishes, delivery, installation, or any wider shell package unless clearly stated.