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Alton Cedar Structure
Alton Westminster Cedar Half-Boarded Greenhouse – Premium Cedar Frame, Elegant Half-Wall Design
- Regular price
- $34,650.00
- Regular price
- $34,650.00
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Product Description
Traditional Wooden Greenhouse With Half-Boarded Cedar Sides
Take full control of your growing environment with the Westminster Cedar Half-Boarded Greenhouse. Designed with solid cedar lower walls and full-length tempered glass above, it combines privacy, durability, and striking aesthetics. Built from Grade 1 Western Red Cedar (no knots), dipped and sealed for weather resistance, this model delivers professional-grade performance with timeless appeal. Whether you’re cultivating flowers, herbs, or specialty plants — the Westminster balances style, strength, and growing efficiency.
Quick-Glance Benefits
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Half-Boarded Cedar Walls
Provides privacy, insulation, and a classic look
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🌲
Premium Cedar Frame
Grade 1 Western Red Cedar, dipped & sealed, knot-free
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Aluminum Capping
Extra protection for glazing edges against water
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Superior Ventilation
Multiple auto roof vents & louvered windows included
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Secure Entry Door
Lockable inward-swinging hinged door for access
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What’s Included
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- Wide single door with lock and low threshhold
- 3mm safety glass with screw-in aluminum capping
- Victorian style aluminum guttering with downspout
- Automatic opening roof vents
10x16(4)
10x18(5)
19x20(6) - Louvre windows
10x16(3)
10x18(4)
19x20(4) - 2 slat shelf staging
- 4 slat shelf staging
- Victorian cresting
- Westminster Cedar Half-Boarded Greenhouse
Use It For
✔️ Year-round greenhouse growing
✔️ Growing edibles, flowers, and delicate plants
✔️ Privacy-friendly greenhouse design
✔️ Elegant estate or residential showcase
🔍 Standout Features
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45° Roof Pitch
Steep slope improves air circulation and snow load handling
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Knee Brace Spandrels
Reinforced at every rafter intersection for added strength
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Natural Cedar Variance
Wood tones range from light to dark, making each kit unique
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Cedar Shelving System
Slat shelves included for organized and efficient growing space
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Now Come standard with!

Ready to upgrade your grow setup?
Ready to add strength, privacy, and beauty to your garden?
Order the Westminster Cedar Half-Boarded Greenhouse today and enjoy a classic cedar greenhouse with half-boarded sides for enhanced protection.
Westminster Cedar Half-Boarded Greenhouse Specifications
Glazing: Toughened safety glass with screw-in bar clamping (capping)
Frame: Extra strong cedar
10x16
- Length: 16'8"
- Width: 10'9"
- Peak Height: 11'1"
- Sidewall Height: 5'7"
- Area: 179 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)
10x18
- Length: 18'
- Width: 10'9"
- Peak Height: 11'1"
- Sidewall Height: 5'7"
- Area: 202 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)
10x20
- Length: 20'10"
- Width: 10'9"
- Peak Height: 11'1"
- Sidewall Height: 5'7"
- Area: 224 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)
Westminster Cedar Half-Boarded Greenhouse User Manual
Westminster Cedar Half-Boarded Greenhouse Warranty
Manufacturer Warranty: 10 Years
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Covers defects in materials and workmanship
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Support handled directly through our team
FAQ
Q: What sizes are available?
A: Choose from 16'8", 18', or 20'10" lengths (all 10'9" wide).
Q: Does it include shelving?
A: Yes, cedar slat shelving is included along one long side.
Q: Is the glazing safe?
A: Yes, 3mm tempered safety glass is standard.
Q: Does it handle snow loads?
A: Yes, with its 45° roof pitch and knee brace spandrels.
Q: What’s the warranty?
A: 10-year manufacturer warranty on cedar frame and craftsmanship.
Videos
Warranty
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10-Year Manufacturer's Warranty on structural components, including aluminum base and cedar frame integrity.





