Alton Greenhouse | Durham T-Shaped Cedar Half-Boarded Greenhouse

Alton Durham T-Shaped Greenhouse

The Alton Durham T-Shaped Greenhouse offers the perfect combination of timeless beauty, practical design, and premium craftsmanship in a more compact footprint — ideal for smaller gardens and urban spaces. Its charming T-shaped layout with a front porch/portico creates a striking focal point while providing a versatile space for plant cultivation, entertaining, or year-round relaxation.

Constructed from Grade 1 Western Red Cedar with mortice-and-tenon joinery, tongue-and-groove paneling, and a durable aluminum base frame, the Durham delivers exceptional durability, stability, and weather resistance. Half-boarded cedar panels paired with 3mm toughened safety glass create the ideal balance of light, insulation, and privacy.

Premium Construction

• Mortice-and-Tenon Joinery – Provides outstanding structural strength and ensures a straightforward assembly process.

• Grade 1 Western Red Cedar – Knot-free, naturally rot-resistant, insect-deterring, warp-resistant, and moisture-stable.

• Aluminum Base Frame – Lifts wood away from ground moisture and allows glass panels to rest directly on metal, eliminating common rot points.

• Aluminum Capping – Enhances water protection, extends wood life, and improves insulation.

• Knee Brace Spandrels – Cast aluminum braces at eaves and ridge intersections for added rigidity and Victorian style.

Elegant T-Shaped Greenhouse Design

• Architectural Focal Point – Compact T-shaped footprint with front porch adds style and sophistication to any outdoor setting.

• Spacious Interior in a Smaller Size – 8′10″ peak height and 5′7″ sidewalls create excellent headroom for plants, shelving, or comfortable seating.

• Steep 45° Roof Pitch – Enhances the aesthetic appeal and ensures snow and rain run off easily.

Year-Round Growing & Living Environment

• 3mm Toughened Safety Glass – Offers maximum clarity, strength, and a secure, rattle-free fit.

• Automatic Ventilation – Roof vents with automatic openers regulate temperature naturally without electricity.

• Louver Windows – Manual side vents work with roof vents for optimal airflow.

• Rainwater Management – Integrated aluminum guttering and downpipes included on every model.

Dimensions & Configurations

• 12′5″ W x 7′5″ L – 87.5 sq. ft. – 4 roof vents / 2 louver vents

• 16′8″ W x 7′5″ L – 113 sq. ft. – 5 roof vents / 4 louver vents

• 20′10″ W x 7′5″ L – 181 sq. ft. – 6 roof vents / 4 louver vents

Sidewall Height: 5′7″
Peak Height: 8′10″
Frame Color: Natural Wood with Moss Green Aluminum Capping
Warranty: 10 years on framing
Made in the UK

Included in Every Kit

• Cedar framing, glazing, and stainless steel hardware

• Base frame and aluminum capping

• Hinged single door with keyed lock

• Roof vents with automatic openers (varies by size)

• Louver vents with manual openers (varies by size)

• Integrated aluminum gutter system with downpipes

• Optional shelving and Victorian ridge decorations

Why Choose the Alton Durham T-Shaped Greenhouse?

The Durham is more than just a greenhouse — it’s a versatile outdoor structure that works beautifully as a garden retreat, hobby space, hot tub enclosure, or intimate entertaining area. Its smaller footprint makes it perfect for tighter spaces without compromising on quality, style, or function. If you don’t see the size or configuration you need, give us a call and we’ll help you find or customize the perfect model.

Order the Alton Durham T-Shaped Greenhouse today and enjoy a structure that blends traditional craftsmanship with modern performance for decades of beauty and use.