10 panels
2.44 × 2.44 m
8 wall + 2 roof · plan 6.0 m²
£1,030 SIP122 EPS pack
Indicative slatted cladding (no openings, no waste, no trims): 48 × 2.5 m @ £35.35 = £1,696.80. Quote for a take-off.
Shell kits
Wall and roof SIP panels. Not a finished garden room
Counted 1220 × 2440 mm SIP panels on the 1.22 m module. Headline SIP122 EPS at £103 per panel. Openings cut on site. Cladding, windows, EPDM extra.
Planner example
Not a priced SKU
The model is a 3000 × 2500 mm OSB SIP shell. Black French doors and the side window in the picture are extras, quoted separately. Openings are cut on site. We do not list 3.0 × 2.5 as a kit price.
Priced packs below are counted 1220 × 2440 mm SIP panels on the 1.22 m module — 8×8 ft £1,030, 12×12 ft £1,854, and the rest of that grid.
Wall height 2.44 m (one SIP panel standing). Wall SIP panels = 2 × (L/1.22 + W/1.22). Roof SIP panels = enough full SIP panels to cover the plan, cut on site. No floor pack, no joinery, no windows in the panel price. Windows and doors in the planner model are extras.
13 panels
3.66 × 2.44 m
10 wall + 3 roof · plan 8.9 m²
£1,339 SIP122 EPS pack
Indicative slatted cladding (no openings, no waste, no trims): 60 × 2.5 m @ £35.35 = £2,121.00. Quote for a take-off.
18 panels
3.66 × 3.66 m
12 wall + 6 roof · plan 13.4 m²
£1,854 SIP122 EPS pack
Indicative slatted cladding (no openings, no waste, no trims): 72 × 2.5 m @ £35.35 = £2,545.20. Quote for a take-off.
20 panels
4.88 × 3.66 m
14 wall + 6 roof · plan 17.9 m²
£2,060 SIP122 EPS pack
Indicative slatted cladding (no openings, no waste, no trims): 84 × 2.5 m @ £35.35 = £2,969.40. Quote for a take-off.
24 panels
4.88 × 4.88 m
16 wall + 8 roof · plan 23.8 m²
£2,472 SIP122 EPS pack
Indicative slatted cladding (no openings, no waste, no trims): 96 × 2.5 m @ £35.35 = £3,393.60. Quote for a take-off.
25 panels
6.10 × 3.66 m
16 wall + 9 roof · plan 22.3 m²
£2,575 SIP122 EPS pack
Indicative slatted cladding (no openings, no waste, no trims): 96 × 2.5 m @ £35.35 = £3,393.60. Quote for a take-off.
28 panels
6.10 × 4.88 m
18 wall + 10 roof · plan 29.8 m²
£2,884 SIP122 EPS pack
Indicative slatted cladding (no openings, no waste, no trims): 108 × 2.5 m @ £35.35 = £3,817.80. Quote for a take-off.
32 panels
7.32 × 4.88 m
20 wall + 12 roof · plan 35.7 m²
£3,296 SIP122 EPS pack
Indicative slatted cladding (no openings, no waste, no trims): 119 × 2.5 m @ £35.35 = £4,206.65. Quote for a take-off.
37 panels
7.32 × 6.10 m
22 wall + 15 roof · plan 44.7 m²
£3,811 SIP122 EPS pack
Indicative slatted cladding (no openings, no waste, no trims): 131 × 2.5 m @ £35.35 = £4,630.85. Quote for a take-off.
Panel counts
| External plan | Wall | Roof | Total | SIP122 EPS | Roof m² |
|---|---|---|---|---|---|
| 2.44 × 2.44 m | 8 | 2 | 10 | £1,030 | 6.0 |
| 3.66 × 2.44 m | 10 | 3 | 13 | £1,339 | 8.9 |
| 3.66 × 3.66 m | 12 | 6 | 18 | £1,854 | 13.4 |
| 4.88 × 3.66 m | 14 | 6 | 20 | £2,060 | 17.9 |
| 4.88 × 4.88 m | 16 | 8 | 24 | £2,472 | 23.8 |
| 6.10 × 3.66 m | 16 | 9 | 25 | £2,575 | 22.3 |
| 6.10 × 4.88 m | 18 | 10 | 28 | £2,884 | 29.8 |
| 7.32 × 4.88 m | 20 | 12 | 32 | £3,296 | 35.7 |
| 7.32 × 6.10 m | 22 | 15 | 37 | £3,811 | 44.7 |
Other cores: multiply panel count by £88 / £110 / £128 / £142 / £169. Trade rates on 10+ (every kit here is 10+ — ask). 97 and 147 mm, EPS or PIR, same count.
Foundations: SIPS Online supplies StopDigging ground screws with SIP kits. Quoted — no fake £ per screw. Ground screws.
Foundations
Shell on screws. Openings cut on site
StopDigging-style ground screws with the kit if you want them. We supply the SIP panels and the screws. You or your builder fit. Windows and doors in any finished room are extras.