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Alton Durham Cedar Orangerie Greenhouse - T-Shaped

  • Regular price $ 28,600.00
  • 2 available

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Alton Durham Orangerie Cedar Greenhouse has a stately T-shaped design — an extra wing juts out from the main structure to create a wide entryway/foyer area up front, adding a real gathering spot instead of just a straight rectangle. That unique T-shaped layout adds elegance and a focal point to any garden, seamlessly fitting into both traditional and modern settings. Imagine yourself enjoying a cup of coffee, reading a book, or hosting friends surrounded by your favorite plants right in that entryway space. The Alton Durham Wooden Orangerie creates the perfect blend of functionality and style, transforming your outdoor space into a serene retreat that complements your lifestyle.

The Durham Orangerie embodies over 100 years of greenhouse craftsmanship, offering a stylish and practical enhancement to your backyard or garden. It shares the same classic Victorian styling as our larger Cambridge model, in a smaller footprint that's ideal for townhome backyards.

Choose Your Size:

12'5" x 7'5" (87.5 sq. ft.): 8'10" peak height, 5'7" sidewall — our most compact Durham, still with a genuine T-shaped layout.

16'8" x 7'5" (113 sq. ft.): Same peak height, with meaningfully more room and 5 automatic roof vents instead of 2.

20'10" x 7'5" (181 sq. ft.): Our largest Durham, with 6 automatic roof vents for maximum airflow.

  • T-Shaped Design: Adds a sophisticated focal point to any garden, perfect for relaxing or entertaining among your favorite plants.
  • Premium Cedar & Aluminum Construction: Combines the beauty of Western Red Cedar with an aluminum base for durability and rot resistance.
  • Enhanced Insulation & Durability: Aluminum bar capping and thick glazing timber bars improve insulation and overall stability.
  • Includes: lockable hinged door, louver vents, and roof vents with auto openers.

Talk to a Greenhouse Specialist: We're a greenhouse specialist, not a general retailer — call or text us at 732-806-7959 and you'll talk to someone who actually knows this product inside and out. We'll help you figure out exactly which size fits your space, and get you a straightforward price.

Accessories

Comes Standard With

  • 3mm safety glass with screw in cedar capping
  • Wide single door with lock and low threshhold
  • Victorian style aluminum guttering with downspout
  • Automatic opening roof vents:
    12'5" x 7'5"(4)
    16'8" x 7'5"(5)
    20'10" x 7'5"(6)
  • Louvre windows
    12'5" x 7'5"(2)
    16'8" x 7'5"(4)
    20'10" x 7'5"(4)

Acessory Kit - Optional

  • 2 slat shelf staging
  • 3 slat shelf staging
  • 4 slat shelf staging
  • Victorian cresting
About Alton by Exaco

The Durham is built by Alton UK, a British cedar greenhouse maker in continuous production since 1921, imported exclusively to the U.S. by Exaco Trading — World of Greenhouses is an authorized Alton dealer. Every Alton greenhouse shares the same build quality: grade-1 Western Red Cedar (no knots) dipped to resist water absorption, a steep 45° roof pitch so snow slides off, tongue-and-groove assembly with solid aluminum gussets at every joint, an aluminum base profile that lifts the frame 1" off the ground, aluminum bar capping over the glazing, 3mm tempered safety glass, pre-assembled doors and windows, and automatic enrollment in a 10-year warranty. Call 732-806-7959 for accessories and a customized kit.


Size Options
  • 12'5" x 7'5": 8'10" peak height — 87.5 sq. ft.
  • 16'8" x 7'5": 8'10" peak height — 113 sq. ft.
  • 20'10" x 7'5": 8'10" peak height — 181 sq. ft.

  • Stately T-shaped design adds a focal point to any garden, perfect for relaxing or entertaining among your favorite plants
  • Snow slides off the steep 45-degree roof pitch
  • Tall design maximizes usable space
  • Frame material: Western Red Cedar & Aluminum
  • Western Red Cedar benefits: better insulation than aluminum, less temperature and humidity fluctuation for a more stable growing environment, naturally rot-resistant, absorbs moisture without warping and dries quickly, and has a long life with little maintenance
  • Glass sits tightly in a wood frame (no rattling)
  • Aluminum base frame keeps wood off the ground and reduces chances for early rot
  • Aluminum caps on roof glass create a better seal for increased insulation
  • Lockable single hinged door with low-level threshold, high door opening and eaves for superior headroom
  • Roof vents come with automatic openers that open and close without using electricity
  • Louver windows come with manual openers

Glazing: toughened safety glass with screw-in bar clamping (capping). Frame: extra strong cedar, grade 1 (no knots), dipped in a special solution to age better and prevent water absorption.

  • 3mm glass: .95 R-Value
  • Red cedar: 1.35 R-Value

12'5" x 7'5" (87.5 sq. ft.)

  • Length: 12'5", Width: 7'5"
  • Peak Height: 8'10", Sidewall Height: 5'7"
  • Doors: 1 lockable door with keys
  • Windows: 2 roof vents, 2 louvre windows
  • Window Openers: 2 automatic (roof), 2 manual (louvre)

16'8" x 7'5" (113 sq. ft.)

  • Length: 16'8", Width: 7'5"
  • Peak Height: 8'10", Sidewall Height: 5'7"
  • Doors: 1 lockable door with keys
  • Windows: 5 roof vents, 4 louvre windows
  • Window Openers: 5 automatic (roof), 4 manual (louvre)

20'10" x 7'5" (181 sq. ft.)

  • Length: 20'10", Width: 7'5"
  • Peak Height: 8'10", Sidewall Height: 5'7"
  • Doors: 1 lockable door with keys
  • Windows: 6 roof vents, 4 louvre windows
  • Window Openers: 6 automatic (roof), 4 manual (louvre)

Financing Available: Get Started

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Alton Durham Cedar Orangerie Greenhouse - T-Shaped - 12'5" x 7'5"

$ 28,600.00
Specification Value
Width 10'
Length 12'
Sidewall Height 7'
Exterior Peak Height 9' 4.5"
Interior Peak Height 9'
Double Door Opening 60" W x 78" H
Roof Pitch 6/12
Roof Coverage 140
Square Foot Storage 120
Cubic Foot Storage 920
Product specifications

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