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Overview

Designed to combine beauty with practicality, the Alton Cheltenham cedar greenhouse elevates your outdoor space while providing the ideal environment for growing. Its natural cedar aroma, attractive proportions, and built-in ventilation create an inspiring and functional space.

With its blend of craftsmanship, innovation, and timeless design, the Cheltenham cedar greenhouse is an heirloom structure that embodies both elegance and utility, ready to be enjoyed for generations to come.

Key Features

Mortice-Tenon and Tongue-Groove Framing Joints

Mortice-Tenon and Tongue-Groove Framing Joints

Easy to assemble and adds strength
Aluminum Base

Aluminum Base

Wood never touches base to protect from water damage
Gutter and Downspout

Gutter and Downspout

For water collection or drainage
Roof Vents

Roof Vents

Featuring automatic opener system
Louvre Window

Louvre Window

Manual opening for airflow (automatic openers available)
Hinged Door

Hinged Door

Pre-assembled Low threshold single with locking handle and key
Aluminum Capping

Aluminum Capping

Seats the glass panels securely, low maintenance, high durability
High Eaves

High Eaves

More space equals more air and headroom, overlapping roof glass prevents leakage
Guarantee

Guarantee

Free 10 year framework guarantee on all models we carry

Specifications

Glazing: Toughened safety glass with screw-in bar clamping (capping)
Frame: Extra strong cedar

12'6"

  • Suggested Retail: $24,200
  • Length: 12'6"
  • Width: 8'8"
  • Peak Height: 10'
  • Sidewall Height: 5'7"
  • Area: 109 sq. ft.
  • Roof Pitch: 45 degrees
  • Doors: 1 Lockable Door with Keys
  • Windows: 4 Roof Vents w, 2 Louvre Window
  • Window Openers: 4 Automatic (Roof), 2 Manual (Louvre)

16'8"

  • Suggested Retail: $29,150
  • Length: 16'8"
  • Width: 8'8"
  • Peak Height: 10'
  • Sidewall Height: 5'7"
  • Area: 144.9 sq. ft.
  • Roof Pitch: 45 degrees
  • Doors: 1 Lockable Door with Keys
  • Windows: 4 Roof Vents w, 3 Louvre Window
  • Window Openers: 4 Automatic (Roof), 3 Manual (Louvre)

18'

  • Suggested Retail: $30,800
  • Length: 18'
  • Width: 8'8"
  • Peak Height: 10'
  • Sidewall Height: 5'7"
  • Area: 163 sq. ft.
  • Roof Pitch: 45 degrees
  • Doors: 1 Lockable Door with Keys
  • Windows: 5 Roof Vents w, 4 Louvre Window
  • Window Openers: 5 Automatic (Roof), 4 Manual (Louvre)

20'

  • Suggested Retail: $33,000
  • Length: 20' 10"
  • Width: 8'8"
  • Peak Height: 10'
  • Sidewall Height: 5'7"
  • Area: 181 sq. ft.
  • Roof Pitch: 45 degrees
  • Doors: 1 Lockable Door with Keys
  • Windows: 6 Roof Vents w, 4 Louvre Window
  • Window Openers: 6 Automatic (Roof), 4 Manual (Louvre)

Accessories

Comes Standard With

  • 3mm safety glass with screw-in aluminum capping
  • Wide single door with lock and low threshhold
  • Victorian style aluminum guttering with downspout
  • Automatic opening roof vents
    16'8"(4)
    18'(5)
    20'(6)
  • Louvre windows
    16'8"(3)
    18'(4)
    20'(4)

Can Also Add

  • 2 slat shelf staging
  • 4 slat shelf staging
  • Victorian cresting

Frequently Asked Questions

Why choose cedar for a greenhouse?

Cedar wood offers natural rot resistance, pest resistance, and excellent insulation properties, helping create a stable internal climate for plants and reducing maintenance needs over time. Not only that, but cedar smells terrific, and the wood adds warmth and natural character to any outdoor space.

How do cedar greenhouses compare to other materials?

Cedar is a premium greenhouse frame material because it is naturally resistant to rot, decay, and insects. It is structurally strong and stable, yet lighter than many hardwoods. Unlike aluminum, cedar does not conduct heat or cold as quickly, which can slightly reduce temperature transfer through the frame. Over time, it weathers gracefully and maintains its structural integrity for decades when properly maintained. For buyers who want a durable, natural, and architecturally warm frame material, cedar is a premium choice.

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