A light-filled summerhouse with lots of glazing, so you can enjoy your garden even when you’re indoors.
Want a summerhouse that doesn’t feel gloomy?
Some garden buildings look great, then you step inside and it feels a bit dim. The Penthouse is built to let in loads of daylight, so it’s a nicer place to read, potter, or simply sit with a brew.
Why is this summerhouse so bright?
The Penthouse uses two-tier fixed windows on almost every wall panel. That means more glass, more daylight, and a more open feel inside.
It’s a great choice if your garden gets good sun and you want to make the most of it.
What does the pent roof do for you?
The pent roof gives a clean, modern profile and helps rainwater run away in one direction. It also keeps the front height generous, so it feels easy to move around in.
How strong is the timber build?
The walls use 12mm shiplap tongue & groove cladding on a 28mm x 44mm timber frame. Tongue and groove boards slot together neatly for a tidy finish.
The roof and floor are also 12mm tongue & groove boards, and the floor is included.
What are the door and window details?
The summerhouse has a single full-boarded tongue & groove door with a lock and key. The windows use 3mm toughened glass.
Toughened glass is designed to be stronger than standard glazing and offers extra peace of mind.
Can the door be placed somewhere else?
In simple terms, yes. please contact us for more options
What do you need to do after installation?
This building is supplied with a temporary water-based base coat. After assembly, treat the summerhouse inside and out with a good quality wood preserver and a water-resistant finish.
Treat it every year to help protect the timber. Seal all glazing inside and out with a suitable watertight sealant (such as silicone). Fit the building on a firm, level base made from a suitable, durable material.
Which sizes are available?
- 6x6 Penthouse Shiplap
- 8x6 Penthouse Shiplap
- 10x6 Penthouse Shiplap
Size guide (mm)
| Size | Footprint | Internal | External ridge height | External eaves height | Windows |
|---|---|---|---|---|---|
| 6x6 | 1750 x 1750 | 1662 x 1662 | 2041 | 1911 | 10 |
| 8x6 | 2350 x 1750 | 2262 x 1662 | 2041 | 1911 | 14 |
| 10x6 | 2950 x 1750 | 2862 x 1662 | 2041 | 1911 | 14 |
Specifications
| Category | Specification |
|---|---|
| Available sizes | 6x6, 8x6, 10x6 |
| Wall cladding | 12mm Shiplap Tongue & Groove |
| Framing | 28mm x 44mm |
| Roof thickness | 12mm Tongue & Groove |
| Floor included | Yes |
| Floor thickness | 12mm Tongue & Groove |
| Roof covering | Grey Mineral Felt |
| Door type | Single Full Boarded Tongue & Groove Door |
| Door size | 785mm x 1692mm |
| Window type | Fixed Windows (two-tier layout) |
| Window size | 457mm x 610mm |
| Glazing | 3mm Toughened Glass |
| Locking | Lock and Key |
| Treatment supplied | Temporary Water-Based Treatment (base coat) |
| Upgrade option | Loglap cladding available as an upgrade |
Ready to pick your size?
Choose the size that fits your space and enjoy a summerhouse that feels bright from the moment you step inside. If you want help with bases, treatments, or door layout planning, just ask us at Gleaming Gardens.
📦 Shipping
Q: Do you ship for free in England?
A: Absolutely! Every order to England ships completely free. Scotland, Wales, and Ireland have a small additional charge depending on the product. Contact us for exact pricing.
Q: How long does delivery take?
A: Estimated delivery time is 2–17 business days from order:
• Handling: 1–3 business days
• Transit: 1–14 business days
Q: What if the item arrives damaged?
A: Photograph any damage (packaging + product) and email the photos to
sales@gleaminggardens.co.uk. We’ll take care of the claim.
↩️ Returns & Refunds
Q: Can I return an item if I change my mind?
A: Yes — 30-Day Return & Refund policy. Email sales@gleaminggardens.co.uk with your order number.
Q: Who pays for the return shipping?
A: The customer is responsible.
Q: What condition must items be in?
A: Items must be in “Like New” condition with all packaging and accessories.
Q: How long do refunds take?
A: Refunds are processed within 5 working days.
Q: Is there a restocking fee?
A: No.
Q: What if the item is damaged or incorrect?
A: Report it on the same day with photos. We cover return shipping.
Q: Are some products non-returnable?
A: Yes — exclusions will be shown on product pages.
💷 Price Match Guarantee
Q: What is the price-match policy?
A: Email sales@gleaminggardens.co.uk or call 203 098 6998. We match or beat valid competitor prices.
Q: What counts as “same product”?
A: Identical model, variant, and configuration. We compare full pricing including delivery.
⭐ Why Choose Gleaming Gardens
Premium Quality – Hand-selected products built to last.
Free UK Delivery – No hidden fees.
Risk-Free 30-Day Returns – Hassle-free process.
Price Match Promise – We match or beat valid prices.
Exceptional Service – Friendly advice and dedicated support.