Our 172mm 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 172mm, this panel is aimed at higher-performance wall builds where you want stronger insulation, a robust shell, and a specification suited to year-round use. 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.

• Higher-performance panel depth for customers targeting a stronger insulated shell.
• A good fit for garden rooms, annex-style shells, and year-round use projects.
• Supports a premium specification without stepping up to heavier roof-oriented panel depths.

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.