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Compare the Cayman range and sizes, or ask about this 12 m × 3 m specification.
The 12m x 3m Cayman complete glass room combines a wall-mounted aluminium veranda with a clear glass roof and sliding glass doors across the front and both sides. Its nominal 12m width and 3m projection provide approximately 36m² of covered space, making it a practical starting point for a spacious garden entertaining area with room to plan separate dining and seating zones.
Designed to connect the house and garden, the Cayman keeps the outlook open and lets daylight through the roof and glazed sides. Open the sliding doors for access and ventilation, or close them to create a more sheltered outdoor seating and dining area.
| Model | Cayman aluminium glass room |
|---|---|
| Nominal width | 12m |
| Projection | 3m |
| Approximate covered area | 36m² |
| Mounting | Wall-mounted to a suitable supporting structure |
| Roof | Fixed clear 8.8mm laminated safety glass |
| Sliding doors | 10mm toughened safety glass, front and both sides |
| Frame | Powder-coated aluminium; colour confirmed with your quotation |
| Drainage | Integrated rainwater management |
Listed dimensions are nominal guide sizes. Manufacturing dimensions, overall height, roof pitch, door openings and fixing details are agreed before manufacture. This wider configuration includes additional front support posts. Their number and positions are confirmed on the final drawings. Photos show representative Cayman installations; dimensions, optional equipment and support layouts may differ.
Dorset Glass Verandas offers an extended 15-year structural warranty on the Cayman aluminium structure, subject to the written warranty terms and applicable installation and maintenance requirements. Cover for glazing, moving parts, roof awnings, screens, lighting and other accessories is confirmed separately with your order.
Personalise your outdoor glass room with a roof awning for shade, side screens for privacy and sun control, or solid aluminium walls where you prefer an opaque side. These optional extras are priced on request and depend on your final layout. Lighting and heating options can also be discussed separately; equipment shown in photographs is included only where stated in your quotation.
The displayed complete-room price includes VAT, the roof structure and clear glass roof, both front sliding-door sets and the two side sliding-door sets. Delivery and professional installation are quoted separately according to your location, access and site requirements. Supply-only arrangements can also be discussed.
A suitable supporting wall and firm, level fixing base are required. Final fixing and drainage arrangements must suit the site. Groundworks, foundations, electrical work and building alterations are included only where stated in the written quotation.
This single-glazed outdoor room provides shelter and flexible ventilation; internal temperatures vary with the weather. Keep glass, door tracks and drainage routes clean, and follow the supplied care instructions to maintain smooth operation and rainwater flow.
Explore the Cayman glass room range or contact Dorset Glass Verandas to discuss your 12m x 3m configuration, colour choices and installation quotation.
The 12m front is split at the intermediate support into two nominal 6m sliding-door sets. Final opening dimensions and support positions are confirmed on the drawings. The complete-room price includes VAT, the roof structure and clear glass roof, both front door sets and the two side door sets. Installation and delivery are quoted separately.
Get to know your Cayman: the frame, the roof and the choices that shape the finished space. Real project details bring the specification into focus.
Photographs show collection examples. Your selected dimensions, options and approved drawings define the supplied design.
Your Cayman starts with a powder-coated aluminium frame. We review the support layout, fixing points and selected options around your home, rather than treating every terrace as the same.
A pitched glass roof brings natural light through to the terrace. The roof angle, support layout and drainage arrangements are confirmed for your project.
Confirm the finish, mounting arrangement and available accessories for your selected size before ordering.
Review sliding glass panels, outdoor blinds and LED lighting. Package inclusions and compatibility follow your chosen specification.
Delivery, foundations and installation arrangements are confirmed for your project. Read our delivery and installation information.
Compare Cayman sizesDiscuss your projectSupplied by PergoTec Ltd. Your written quotation and approved drawings confirm the final specification, available options, delivery and installation. Installation is quoted separately and payable on completion.
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What makes this model different
Roof-style illustration only. Final pitch, dimensions, supports and drainage follow your drawings.
Cayman
Project photographs illustrate the range. Your selected dimensions, support layout, glazing and extras are confirmed in the written specification and drawings.
01 / The structure
Powder-coated aluminium creates a defined space beside the garden. Plan the post positions, wall connection and frame finish together so the structure works with the building and the way you move around the patio.
02 / Light from above
The glazed pitch brings daylight over the patio. These project views show the roof bars, wall connection and drainage details alongside the furnished room.
03 / Shape your openings
10mm toughened sliding doors to the front and both sides in the complete-room package. Choose the enclosure around the access and shelter you need. Door tracks, fixed panels, clear openings and any roof-side wedges must match your selected model and approved drawings.
04 / Make room for everyday
Leave a clear route between the house and garden, allow space for the doors to stack, and place seating where you want to enjoy the view. Discuss compatible blinds, lighting and heating as separately selected extras.
| Feature | Specification |
|---|---|
| Frame | Powder-coated aluminium; support profiles and fixings follow the selected specification. |
| Roof design | Pitched fixed glass roof with integrated drainage. |
| Roof glazing | 8.8mm safety laminated glass in the complete-room package. |
| Glass sides | 10mm toughened sliding doors to the front and both sides in the complete-room package. |
| Mounting | Wall-mounted; the wall condition, fixing height and base are reviewed for your site. |
| Finish | Anthracite Grey, White or Black; custom RAL on request. Availability and any colour surcharge follow the selected product and quotation. |
| Base package | Aluminium structure, glass roof, front and both-side sliding doors in the complete-room package. |
| Supports & openings | Openings over 7m require an intermediate post and split glazing sets. Some sizes need additional supports at smaller widths. The listed post count and approved drawings govern your layout. |
| Dimensions | Select a published size or request bespoke dimensions. The final width, projection, roof fall and support positions are confirmed before manufacture. |
| Installation | Delivery, foundations and electrical work are confirmed for your site. Installation is quoted separately and payable on completion. |
Send your measurements, postcode and photographs of the wall and base. We will review the layout, openings, access and chosen extras with you before confirming your specification.
Discuss your veranda →
A short walkthrough of the glass enclosure, roof and seating area.
Read the Cayman case study →