Custom size SIP panels for self-build projects

Structurally Insulated Panels

Benefits of building with SIPs


SIPs are an extremely sustainable and progressive building material. Each panel is built from renewable, farm-grown trees

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Cost effective

Not only are the panels themselves a fraction of the price of traditional building materials, you’ll save a lot on labour costs too

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Quick & easy to use

They’re incredibly easy to erect as the bulk of the work is done at the production phase

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Exceptional insulaters

SIPs are virtually airtight, which in turn keeps the heating bill for your new space nice and low

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Versatile & flexible

Our SIP panels are fabricated to the exact sizes you need, so the possibilities are endless

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SIPs have a very lightweight shell which makes them incredibly easy to use on-site. Save on both delivery costs and expensive lifting equipment

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Prefabricated modular SIP panels (custom sizes)

Lengths: (min 0.2m > max 3m)

Widths: (min 0.2m > max 1.22m)

Thickness: 100mm | 125mm | 150mm | 175mm | 200mm

Our SIPs are made to measure with the exact length, width and thickness you require for your project. They’re delivered to your site within 7 working days. Whatever construction project you’re working on, uSIPs will make it easier, quicker and more cost-efficient.

If you’ve got any questions about the panels you need for your project, please don’t hesitate to get in touch and we’ll be happy to guide you. 

Call us: 0333 305 2811

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Our 11mm thick OSB boards are made from sustainable, small diameter, fast growing trees, which avoids the need for felling larger, more established trees. Two of these boards sandwich a Polyure (PUR) insulated core, which offers incredible strength and durability, thermal performance and a Class 1 fire resistance rating.

Each panel is made to order, based on your specific measurements.

During the fabrication process, we aim for complete perfection, however there must be a +/-5mm tolerance with all panels due to the complex manufacturing process.

Technical info

The standard rebate on each panel is 50mm.

Our panels comes in five thicknesses: 100mm, 125mm, 150mm, 175mm and 200mm.


Delivery costs are calculated based on the weight of your order once you checkout.

Our standard delivery time is 7-10 days, however if you need a quicker turnaround please contact us.