Alton Westminster Cedar Half-Boarded Greenhouse

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 

What’s Included

• • 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

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 Warranty

Manufacturer Warranty: 10 Years

• Covers defects in materials and workmanship

• 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

• 10-Year Manufacturer's Warranty on structural components, including aluminum base and cedar frame integrity.