EPS
Sip panels
Six SIP panels. Prices on the page
Standard 1220 × 2440 mm SIP panels. OSB faces, EPS or PIR core, recessed for splines. Fabricated by sipsonline. eBay list, Trade rates on 10+ SIP panels.
Bifold-door garden room
Cedar garden room with two sets of bifold doors
A cedar-clad garden room example with two sets of bifold doors opening onto grey decking.
- SIP97 EPS £88 per panel
- SIP122 EPS £103 per panel
- SIP147 EPS £110 per panel
- SIP175 EPS £140 per panel
- SIP97 PIR £128 per panel
- SIP122 PIR £142 per panel
- SIP147 PIR £169 per panel
- SIP175 PIR £192 per panel
- Panel prices can change · confirmed on quote · trade on 10+
In the factory: marking out a SIP panel. OSB faces with EPS or PIR cores.
All eight SKUs
Photo, spec, price, quote
Every SIP panel is 1220 × 2440 mm. Pick thickness and core. Quote or WhatsApp — we reply from the company inbox.
EPS
EPS
EPS
EPS
PIR
PIR
PIR
PIR
PIR uses the same OSB sandwich render as EPS — we do not have a separate PIR photo. The badge is the difference. Not included in the panel price: timber joining splines, fixings, structural design, building control, install. More than 10 SIP panels? Trade rates or WhatsApp. Need joining splines? See below.
Joining splines
Supply accessory for recessed SIP panel edges. 2.44 m timber joining inserts sized to the core. Live eBay list (Sep 2026) — can change. Not included in panel or SIP kit prices. Count and core confirmed on the quote.
| Item | Length | sipsonline (live eBay) |
|---|---|---|
| SIP97 joining spline | 2.44 m timber insert | £11.00 |
| SIP122 joining spline | 2.44 m timber insert | £12.00 |
| SIP147 joining spline | 2.44 m timber insert | £13.00 |
| SIP175 joining spline | 2.44 m timber insert | £14.00 |
Match the spline to the SIP panel core thickness you are joining. Fixings and structural design still separate. SIP kits are walls + roof SIP panels only — add splines if you want them on the same drop.
In the workshop
