Janssens Royal Victorian VI 23 Greenhouse
$9,799.00
Features
- Compact footprint (8' × 10') for small backyards—while keeping a comfortable eaves height
- Modern Victorian look with refined roof ridge décor for an upscale garden-room finish
- Full-height 4mm tempered safety glass walls or bright clarity and a true all-glass look
- Tall 6'7" sidewalls for comfortable headroom and a more spacious interior feel
- Rigid 17-gauge aluminum frame engineered for long-term strength and stability
- Tight-seal build with rubber glazing seals + sealed windows to reduce drafts and rattling
- Door placement flexibility: single sliding door can be installed on any side to fit your layout
- Integrated 6" foundation frame — designed to be installed on a proper base/footer
What's Included
- Frame + glazing + hardware
- 2x Roof vents with 1x automatic opener and 1x manual opener
- Louver window (+ Lexan panel)
- Single sliding door
- Misting system
- Victorian ridge cresting
- Gutters + downpipe
Dimensions
7′9″ W x 10′2″ L x 8′6″ H
Shipping
- Ships via LTL freight (curbside): Liftgate + pallet jack delivery; plan 2–3 people to move boxes off the pallet and into place.
- Lead time: 5–7 business days (in stock). Up to 12 weeks (if not in stock).
Assembly & Warranty
- Average assembly time: approx. 2-3 days with 2-3 people
- Assembly Manual: Download here
- 15-year warranty limited
Secure Checkout
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Description
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The Janssens Royal Victorian VI 23 is the “best of both worlds” option—a compact footprint for smaller backyards, with tall eaves that still feel comfortable inside. It’s a great compromise between the Juniors and the larger Royals, keeping the premium build without the bigger footprint or double doors—while still delivering the garden-room look with full-height tempered glass and refined roof ridge décor.
Small Footprint. Serious Ratings.
The VI 23 isn’t just “pretty and compact”—it’s engineered to hold up in real weather. It’s rated up to 130 mph winds (3-second gusts) and 30 psf ground snow load / 20 psf roof live load, giving you more confidence than most glass greenhouses in this size class.
That Seamless Glass Look
4mm tempered glass creates the bright, open “garden room” feel people want from a true glasshouse.
The full-height panels also keep the sidewalls clean and uninterrupted, with fewer breaks where dust and grime can build up over time.
Engineered to Stay Solid
Behind the glass is a rigid 17-gauge aluminum frame built for long-term stability.
Rubber glazing seals help cut drafts and rattling, while sealed windows add extra weather protection.
Flexible Layout + Comfortable Headroom
The single sliding door can be installed on any side, which makes it easier to plan around walkways, views, and access points—especially in tighter yards. And with tall eaves that feel comfortable inside, the VI 23 keeps the more open “Royal” feel even in a compact footprint.
If you want to take it even taller, it’s also stem-wall compatible for extra height.
Add-Ons & Upgrades: Make it your own
Shelving
Add a full-length seed tray shelf, narrow top shelf, or slatted shelving to keep tools and plants organized—and create an easy workspace without eating up floor space.
Door Upgrades
Add a low-threshold entry for easier in-and-out access. If you want the tightest seal, upgrade to a hinged door—this is also the recommended choice for stem-wall builds. You can also make it a double door if you prefer a wider opening.
Drop Door Kit (for stem wall installs)
Made for raised installs so your entry stays clean and comfortable—ideal when you’re building up on a stem wall (up to ~30″)
Gallery
Quick Size Guide
Dimensions: 7′9″ W x 10′2″ L
Peak height: 8’6″
Sidewall height: 6’7″
Roof pitch: 25°
Every Janssens Royal Victorian VI 23 Greenhouse kit includes:
- Aluminum framing, glazing, & rubber seals
- Single sliding door (lockable)
- 2x Roof vents (29″ x 33″) – with 1x automatic opener and 1x manual spindle opener
- Louver window (28.5″ x 39″) with clear Lexan cover sheet for winter
- Misting system
- Victorian ridge cresting
- Gutters + downspouts
- Hardware
Specifications
| Brand | Janssens |
|---|---|
| Distributed by | Exaco |
| Made in | Belgium |
| Width | 8' |
| Length | 10' |
| Floorspace | 80 sq ft |
| Peak Height | 8′6″ |
| Side Wall Height | 6’7″ |
| Framing Material | Aluminum |
| Frame Color | Black, Dark Green |
| Roof Glazing | 4mm tempered glass |
| Wall Glazing | 4mm Tempered Glass |
| Roof Pitch | 25° |
| Roof Vent Opener Type | Automatic (wax), Manual |
| Roof Vent Dimensions | 29″ x 33″ |
| Door Type | Single, Sliding |
| Door Dimensions | 27.5″ x 70.5″ |
| Foundation Frame | Integrated Base |
| R-Value | 1.2 |
| Wind Rating | 130 mph |
| Snow Tolerance | 20 psf (roof live load), 30 psf (ground-snow load) |
| Rainwater Collection | Gutter with downspouts on both sides |
| Stem Wall Compatibility | Yes |
| Expandable | No |
| Warranty | 15 years limited |
What foundation do I need?
All Janssens greenhouses require a proper foundation despite the strong base frame because glass greenhouse is heavy. A concrete slab or a concrete footing will provide the most solid, long-lasting base. The key is that your foundation is level, square, and well-draining—even small twists can affect door operation and panel fit.
You have to cement the foundation into the footer for the perfect stability. Do not set concrete in the corners until the entire greenhouse frame is complete, level, and square! Please, have a look at the manual or this assembly video for the Royal Victorians. They illustrate how it’s done correctly.
Helpful guides:
Can I get the VI 23 with the hybrid roof
Depending on stock levels, we may be able to provide the 10mm heat-block polycarbonate panels for the roof. Please contact us for availability and pricing.
Do the roof vent openers require electricity?
No. They are wax-cylinder openers, which expand and contract with temperature to open/close the vent—so there’s no wiring and no power required.
Are There any accessories I should add?
We always recommend adding an exhaust fan because greenhouses can heat up very quickly in direct sunlight—even on mild days. If you plan to use the greenhouse in winter, you may need a heater as well.
Where does this ship from?
Austin, Texas
How Does Curbside Delivery Work?
Freight delivery drops your crate at the curb/end of driveway. Typically, you’ll unload the contents with the driver and the crate remains on the truck. If you have a forklift or tractor with long forks, you may be able to lower the whole crate using the liftgate. Plan for 2–3 people to help.
Tip: Make sure the truck can access your driveway and you have a clear staging area ready.
Made by
Janssens: 75+ years of craftsmanship
Janssens Greenhouses has built premium European glass greenhouses in Belgium for decades, known for elegant design, precise aluminum framing, and a fit-and-finish that’s made to last.
Explore Janssens GreenhousesDistributed by
Exaco
Exaco is the authorized North American distributor for Alton, known for importing a curated lineup of high-quality European garden products—and for support that goes the extra mile.
More About ExacoAdditional information
| Distributed by | Exaco |
|---|---|
| Door Dimensions | 27.5″ x 70.5″ |
| Door Type | Single, Sliding |
| Expandable | No |
| Floorspace | 80 sq ft |
| Foundation Frame | Integrated Base |
| Framing Material | Aluminum |
| Length | 10' |
| Made in | Belgium |
| Peak Height | 8′6″ |
| R-Value | 1.2 |
| Rainwater Collection | Gutter with downspouts on both sides |
| Roof Vent Dimensions | 29″ x 33″ |
| Roof Vent Opener Type | Automatic (wax), Manual |
| Side Wall Height | 6’7″ |
| Snow Tolerance | 20 psf (roof live load), 30 psf (ground-snow load) |
| Wall Glazing | 4mm Tempered Glass |
| Warranty | 15 years limited |
| Roof Pitch | 25° |
| Stem Wall Compatibility | Yes |
| Style | Victorian |
| Width | 8' |
| Wind Rating | 130 mph |
| Frame Color | Black, Dark Green |
| Roof Glazing | 4mm tempered glass |
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