T Model greenhouse – a T-shaped orangery with distinct spaces for plants and relaxing
The Bloomcabin T Model greenhouse suits gardens where cultivation and time spent under cover call for separate, well-organised areas. A cross wing gives the elongated growing house a flexible centre. Potting benches, crops and tools can occupy the work zone, leaving the wing available for dining, seating or a studio.
There are three configurations, with areas of about 16.5 to 30.0 m². The stated overall width is 310 cm, with an approximate 267 cm ridge height and a 185 cm-high doorway, providing substantially more space than a small hobby greenhouse.
Look beyond the garden area when selecting a configuration. Account for circulation, the sun’s path, foundations, drainage and any services. Set out the purpose of each wing early: plant-focused cultivation has different watering, ventilation and access needs from an orangery used for meals, reading or work. Resolving the layout first simplifies later decisions. More information from Bloomcabin.

How the T shape supports furnishing
A rectangular greenhouse usually places plants, benches and paths along its length. Here, a cross wing intersects the principal growing section to form a central link. The interior stays open, yet the footprint naturally supports two different arrangements. Cultivation and leisure can therefore occupy the same glazed building without adding an internal partition.
Rows of crops, propagation tables, shelves and tall plants fit logically in the elongated section. Use the broader wing for a table, moveable seating, feature pots or creative work. Leave the intersection open so chairs, trays and watering cans can travel readily between the door, growing benches and sitting area.
The open connection maintains a generous sense of space while keeping plants visible from the relaxation area.
Three configurations
Three configurations of approximately 16.5 to 30.0 m²
Aluminium and safety glass
Aluminium frame with 4 mm toughened safety glass
Generous interior height
310 cm overall width, 267 cm ridge height and 185 cm door height
Configurable details
A choice of RAL colours, roof vents, single or double sliding doors and an optional chimney connection
Set up each connected section for its planned purpose
Growing area
Long benches, propagation space and plant collections can occupy the main section. Placing crops with comparable care requirements together simplifies watering and inspection. Position delicate specimens or decorative favourites where they remain visible and readily accessible.
Position tall vegetables and climbers where they cannot encroach on the central crossing, doors or roof vents. Keep shorter crops near the benches and assign heavy pots an accessible long-term location at the planning stage. This avoids mature growth later restricting circulation or ventilation.
Near the cross wing, reserve a modest clear surface for temporarily placing harvest baskets, trays and watering gear. This keeps the dining or sitting zone from becoming a store, while protecting the connecting passage from clutter.
Orangery and relaxation space
Start with what will actually happen in the cross wing. Allow dining chairs to slide out, keep a reading spot beyond the busiest route, and provide reachable surfaces for studio work and supplies. Moveable furniture allows the space to accommodate extra plants or seats as seasonal needs change.
A few substantial pots can give the leisure zone a calmer visual frame than numerous small containers at floor level. Furnishings, cushions and fabrics need to tolerate the shifts in heat and humidity experienced inside a greenhouse.
Use the placement of furniture and pots to suggest separate areas without building partitions. This keeps the layout flexible as the plant collection or seasonal activities change.
Aluminium frame, 4 mm safety glass and integrated gutters
No recurring protective paint treatment is needed for the aluminium frame. Transparent glazing preserves views of the planting and furnishings and accentuates the open T-shaped plan. Base the layout on genuinely usable floor space, allowing for sloping roof sections, frame members and the operating area of each sliding door.
Door options vary by configuration and include single and double sliding designs. Where they sit will shape garden access, everyday circulation and ventilation through the growing section and cross wing. Warm air can leave through the roof vents, roof water is collected by integrated gutters, and the aluminium base frame meets the prepared foundation.
A chimney connection can be specified for a heating system designed separately. First decide whether heat is intended only to protect vulnerable plants from frost or occasionally make the sitting zone comfortable. Each objective changes the requirements for distribution, controls, ventilation and energy. A suitably qualified professional must design the heat source and installation; the connection itself does not do so.

T Model specifications at a glance
Three configurations
approx. 16.5–30.0 m²
310 cm
Stated overall model width
267 cm ridge height
185 cm door height
4 mm toughened safety glass
Part of the model
Single or double sliding doors
According to the selected version
Roof vents, gutters and aluminium base frame
Optional chimney connection; 12-year structural warranty; rated for 30 m/s wind speed and a 210 kg/m² snow load

How can a T-shaped greenhouse be used?
Growing in the main body
Arrange long benches, herbs, vegetables, seedlings and collections through the elongated growing section. Keeping its central route open supports sowing, tending and harvesting without disrupting activities in the side wing. Store everyday tools compactly beside the benches rather than leaving them exposed around the central crossing.
Hosting guests and dining
Dedicate the wider wing to meals and conversation while retaining most cultivation in the long section. This keeps visitors away from tools and seedling trays without losing the garden setting: the linked interior preserves views of plants from the seats.
Light-filled studio
Daylight supports painting, photography, reading and concentrated tasks, although glare and indoor heat may alter considerably as the sun moves. A mobile table and adjustable shade let the workstation respond to the hour and season while preserving the main route and access to roof vents.
Greenhouse for plant collections
Arrange citrus, flowering specimens, climbers and ornamental pots at varied levels. Consider mature dimensions, weight and access for care before settling their positions. Because large containers become awkward to relocate, keep them away from doors, drainage points and parts requiring inspection or cleaning.
Consider the T-shaped footprint together with the sun’s movement, future fit-out and service requirements. Mark north, nearby buildings and trees, access to the property and existing services on a site sketch. It will reveal likely shade, drainage options and whether the entrance is practical for daily use.
Sunny north- and west-facing sites
A north- or west-facing Australian position may heat rapidly in clear weather. The long section’s orientation is only part of the picture: as the sun moves, the wings receive light at different times and may shade one another. Observe the proposed location across the day, including shadows from nearby trees and buildings.
Opening doors and roof vents helps only when air has an uninterrupted route through the building. Dense shelves, cabinets and tall crop rows may impede that movement. Keep low-growing plants beside key ventilation paths and separate taller specimens from doorways and vents.
For a cross wing used chiefly for work or sitting, moveable shading allows protection to follow the sun and changing plant needs. Whatever the season, maintain airflow through shaded sections and ensure every roof vent can still be reached and operated.
Frost and foundation
Accurately setting out the T footprint takes more care than marking a rectangle, so establish its levels, axes and angles precisely. Design the foundation for site-specific soil and frost conditions. Filled, soft or unevenly supportive ground may settle, affecting the frame, glazing alignment and the movement of sliding doors.
Correct base-frame assembly depends on a flat, square base built to the specified dimensions. Verify the external measurements, diagonals and exact position of the cross wing before erection. Adjustments are far harder once glazing is installed. Coordinate the finished floor with both drainage and threshold level.
Prevent stormwater and surface runoff from pooling at the entries or foundation. Falls and drainage should carry water away from the building. Where paving surrounds the orangery, plan for intense rainfall as well, avoiding any depression beside the base frame.
Near a patio or home
Close to the house, the cross wing may create an appealing transition into the garden. Assess how shade, roof runoff and well-used routes affect that position. Convenient access should not cut through vulnerable crops, and open sliding doors must leave essential garden paths unobstructed.
Align the table, doorway and larger specimens so the orangery presents a balanced view from rooms and household paths used most often.
The elongated section can contain visually untidy propagation and work zones, allowing the house-facing cross wing to appear composed and uncluttered.
Define the main circulation route, work zone and seating position first. Fit plants, furnishings and equipment around them so everyday activities do not compete for space.
Plan heating around the intended use
The chimney connection is a building provision, not a complete heater. Suitable equipment depends on the plants, desired temperatures and periods of use. Professional assessment is needed for the heat source, clearances, flue, combustion air and controls. Avoid running portable heaters without proper assessment amid furnishings and dense foliage.
Maintaining a frost-protection minimum and making winter sitting comfortable are separate aims. Longer stays require more evenly distributed warmth around the seats, whereas plant protection prioritises a reliable lower limit. Extensive glazing responds quickly to outdoor weather and sunshine, unlike an insulated room. Agree on comfort and operating expectations before developing the technical design.
Keep controls and isolation points accessible without blocking work surfaces or the central passage.
Evening use
Include evening illumination when setting out tables, benches and service points.
Focused light over a table is generally more useful than brightly lighting the entire structure. Add separate task lights at potting or plant-care positions. All fittings must be suitable for moisture at their installed location, and cables must neither cause trips nor interfere with doors or vents.
Plan switches, power points and wiring before laying the finished floor so they align neatly with future work and seating positions.
Clear routes in the T layout
Circulation converges where the long section meets the cross wing. Do not let a broad table, large pots, shelving or stored tools reduce this space. When several people are inside, there should still be room to pass while a person is watering or seated.
Test the plan against real activity, not just a vacant path. Chairs move back, cupboard doors swing open and trays are carried sideways; bags and watering cans also need temporary set-down space. Protect access to sliding doors, vent controls and maintenance points. Drawing these movements to scale exposes conflicts before heavy items are installed.
Give particular priority to open space at the wing intersection and immediately inside sliding doors, preserving easy movement through the interior.
Assign permanent storage for everyday tools, growing supplies and cleaning gear. Even during busy periods, this protects benches, doorways and maintenance areas from clutter.
Plan furniture to scale
Check circulation around seating with every place occupied, including the room needed to pull chairs out. Show both tucked-in and occupied positions on the plan. Studio layouts also require space for movement and materials. Light or folding furniture makes seasonal changes between sitting, work and overwintering plants much easier.
The best choice is the configuration that properly accommodates mature plants, furniture and circulation—not necessarily the largest available.
Leave adaptable bench or floor space for harvesting, repotting and care instead of permanently filling every part of the interior.
Plan services early
Coordinate water, lighting, power and any heating route before completing the floor and foundation. Map where people will usually water, sit and work. Locating water beside the growing zone reduces hose and watering-can travel, while power points near seating avoid extension leads crossing paths. Keep switches and isolation controls readily accessible.
Ask licensed or otherwise appropriately qualified local trades to undertake electrical and heating work under requirements applying at the site. They can assess routing, protection and component suitability. Locate and seal every foundation or floor penetration before erection; drilling through finished parts later may compromise drainage, stability or finishes.
Document the exact positions of concealed services and penetrations so future work can identify them safely.
Rainwater
Provide a definite destination for water from the built-in gutters. Site conditions may allow suitable infiltration or collection in a tank. Keep discharge pipes serviceable and away from working or walking areas. Cleaning out leaves, blossom and debris should not require shifting heavy pots or bulky furniture.
Rain captured from the roof may water many crops. Its tank needs dependable inflow, provision for cleaning and a managed overflow that drains away from the foundation. Design it so a full tank remains controlled during an extended absence rather than spilling along the base or across paths.
Place the tank outside main routes; a short distance to the growing zone makes everyday watering easier.
Maintenance access
Maintain reach to glazing, gutters, vents, sliding doors and frame junctions for inspection and cleaning. Avoid permanent dense planting along the outside walls. Tasks near roof level require stable access equipment on sound ground. Never step on glazing, gutters or framing that was not designed to carry foot traffic.
Inside, leave a modest gap between heavy pots or furniture and the glass or profiles. This permits removal of dead foliage and dirt and inspection of seals and joints. Clear grit, soil and leaves from sliding-door tracks, and arrange prompt professional assessment if glass or fixings show unusual changes.
Clutter and dirt have a strong impact at the central intersection. Make that highly visible connection part of routine cleaning and condition checks.
Keeping the T Model useful throughout the year
High-level vents release warm, moist air, while sliding doors can introduce cooler air below. During summer, begin ventilation before indoor heat accumulates. After watering, appropriate air movement can reduce prolonged wet foliage and condensation. Shade limits incoming solar heat but cannot substitute for ventilation.
The chimney option accommodates a heating installation that must be designed separately. The T Model nevertheless remains a glazed garden building rather than an insulated room. In cold conditions, its perimeter can feel much cooler than the centre. Select plants, equipment and furnishings for these fluctuations; adapting activities by season is usually the practical approach.
Comfort varies with the weather, sunshine, plant density, ventilation, shade and any heating. Australian spring days may feel pleasant inside while nights remain cool. Removing excess heat dominates in midsummer; during autumn, shorter daylight and condensation gain importance. Track conditions with a thermometer and regular observation, then adjust care and ventilation.
Choose the size around furniture, paths and growing space
Before choosing a configuration, sketch the footprint to scale and place the entrance, circulation route, furniture, pots and benches. Show door operating areas, access to every roof vent and space needed for cleaning. Use measured furniture dimensions. The result should confirm that the wing works as intended without sacrificing a practical continuous growing area.
Test whether plants at mature size could interfere with vents, doors, work positions or the outlook from the seats.
Before constructing the base and floor, add all proposed water, electrical and heating penetrations to the drawing.
Prepare the site, delivery route and assembly area carefully for the T Model
Complete and inspect the prepared base before erection starts. Preparation also extends to the surrounding work zone: it needs secure footing, dry organised storage for parts and adequate access around every side.
Walk the full delivery route from the road to the build position. Measure gates and narrow passages and note steps, gradients, low branches and garden surfaces that could hinder fragile or lengthy parts. Provide level sorting space for glass and profiles at the destination. Because several faces of the T footprint need access, avoid a cramped work zone or dense edge planting.
Although delivered in kit form, this large glazed model involves substantial assembly. Read the instructions throughout and identify all components before work begins. Support stored glass correctly and restrain it from falling. Larger panes, alignment and overhead tasks require sufficient helpers, suitable protective gear and calm conditions. Seek professional assembly if the work is uncertain.
More information about choosing, ordering and warranty conditions
Frequently asked questions about the T Model
What is a T Model?
A T Model combines an elongated growing section with a cross wing that projects from it. Their intersection acts as the room’s centre, and no permanent wall separates the connected parts. Compared with a basic rectangle, this footprint gives cultivation and leisure or work more visibly distinct places.
What is a practical layout for the two sections?
Place propagation, plant benches and routine work along the elongated section. Reserve the cross wing for a dining table, seating or studio activity. Treat their intersection as circulation space and avoid allowing it to become long-term storage.
How do I choose the right configuration?
Do not decide from available ground area alone. Plot full-grown plants, furnishings, work zones and circulation at scale. Select the version in which both wings remain useful and neither roof vents nor doors are obstructed.
Where should large plant containers go?
Allocate large pots a stable, reachable position before planting. Keep them clear of sliding doors, vents, drainage outlets and service points. A gap beside the glazing and frame also allows straightforward inspection and cleaning.
What matters for the T-shaped foundation?
Build the base flat, square and to the required dimensions. Verify its diagonals, outside measurements and cross-wing location before assembly. Professional site planning must also address ground and frost conditions and the disposal of surface water.
Is the T Model suitable for entertaining guests?
Yes. Use the cross wing for dining, comfortable seating or creative work. Draw the furniture at scale, protect circulation through the centre, and plan both ventilation and shade. Remember that conditions remain those of a glazed growing structure rather than an insulated room.
Does it have roof ventilation?
Yes. Included roof vents allow hot air to leave and can work with partially opened sliding doors to create air movement. Arrange furnishings, shelves and plants so they do not impede either the airflow or vent controls.
Can the greenhouse be heated?
Yes. A chimney connection can be added for heating that is specified independently. Equipment selection depends on the plants, required frost protection and how long people expect to use the space. Have the system designed, connected and operated appropriately; a chimney connection by itself is not a heater.
How do I prepare for delivery?
Survey access from the road to the building position, noting restricted gates, steps, gradients, branches and other tight points. At the destination, prepare dry, level space where glazing and profiles can be organised and protected from falling. Keep adequate working clearance around every part of the T-shaped base.
Match intended use and specification before ordering
Before ordering, clarify the model configuration, features and local conditions. The following checklist helps you review outstanding decisions about the property, interior, delivery and services.
Checklist before ordering
✓ Choose the suitable configuration for the property, plant collection and intended use
✓ Draw the main body, cross wing, furniture, plants and clear routes to scale
✓ Confirm delivery access, safe component storage and working room beside each required face
✓ Prepare a level, accurate base suited to local soil and frost conditions
✓ Coordinate the RAL colour, door positions and roof vents with entry routes, furnishings and airflow
✓ Have water, electricity, stormwater drainage and any heating route planned before constructing the foundation and floor