Product line: Manhattan

Model: GH-20

Size: 20 feet (314 square feet)

Included options:
Copper Roof on Cupola
Stain Semi Transparent
Double Door Upgrade
Additional Opening Windows with Screens (per section) (x4)

About the Manhattan product Line

The Manhattan glass house is capped in copper and constructed from only the finest western red cedar. Standard features include solid laminated arches and doors, a glass door with locking entry, octagonal cedar floor sections and three sliding opening windows with screens. Western red perfection shingles complement the gently curved roof. Internal wiring is included with the overhead glass cupola. Provisions for concealed electrical wiring are available. Additional sliding windows are optional. Prices include site installation on level ground (where applicable).



Manhattan Pricing

Model Size Pre-assembled Kit Installed Photo
GH-9 9 feet (64 square feet) $11,570.00 CAD $6,942.00 USD $14,325.00 CAD $8,595.00 USD Manhattan GH-9
GH-10 10 feet (79 square feet) $13,225.00 CAD $7,935.00 USD $15,425.00 CAD $9,255.00 USD Manhattan GH-10
GH-12 12 feet (108 square feet) $16,530.00 CAD $9,918.00 USD $19,840.00 CAD $11,904.00 USD Manhattan GH-12
GH-15 15 feet (177 square feet) $23,145.00 CAD $13,887.00 USD $27,555.00 CAD $16,533.00 USD Manhattan GH-15
GH-17 17 feet (218 square feet) $29,760.00 CAD $17,856.00 USD $33,270.00 CAD $19,962.00 USD
GH-20 20 feet (314 square feet) $36,375.00 CAD $21,825.00 USD $42,990.00 CAD $25,794.00 USD Manhattan GH-20
Options for any model Option Price Photo
Cedar Octagonal Floor Sections (remove)
Additional Tier Roof $990.00 CAD $594.00 USD
Stepped Ridge Cap Upgrade
Copper Roof on Cupola $375.00 CAD $225.00 USD
Interior Roof Tongue and Groove Clear Cedar (TBD) $0.00 CAD $0.00 USD
Diamond Edition $990.00 CAD $594.00 USD
Stain Semi Transparent $1,295.00 CAD $777.00 USD
Key West Eyebrow (each) Key West Eyebrow (each)
Additional Double Door $945.00 CAD $567.00 USD
Double Door Upgrade $270.00 CAD $162.00 USD
Additional Opening Windows with Screens (per section) $215.00 CAD $129.00 USD
Engineer Approved Drawings (Schedule 1) $1,345.00 CAD $807.00 USD

Classic designs proven for strength and durability.

Engineering and crafting structures since 1987, we've developed a wide range of tasteful, timeless designs built to last with the most dependable techniques.

View our products

Make it your own with customizable designs.

Create the perfect addition to your property with a range of design options. It's like having your own personal contractor – without the mess and hefty price tag.

What makes us different

It’s easy with a quick, stress-free installation.

We build your structure to order at our own facility, arriving at your place as soon as we're ready to install. We’ll be quick, quiet and done within a day!

More about installation

Want to see this product in person? Come and visit our showroom!


You may also be interested in one of these products…

Other classic garden structures