Royal Antique Orangerie by Janssens — A Designer Statement Piece
The Royal Antique Orangerie leans fully into the classic Victorian look, with narrower glass panes than most Janssens models and a crisp white frame. It's designed to stand on a 2' knee wall, giving it a taller entry foyer and a distinctly antique, designer presence — the kind of greenhouse that becomes the centerpiece of a garden.
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At 185 sq. ft. (12'10" x 15'7", 9' peak, 6'7" total sidewall height), it gives you plenty of room for growing, seating or entertaining — see the Size/Specs tab for full details. Includes a set of double-hinged doors, 4 roof vents and 2 louvre windows, all with automatic openers, plus gutters with downspouts and a foundation frame.
Built for Strength
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Heavy-duty aluminum frame — larger, thicker and stronger profiles than most greenhouses in its price range.
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4mm tempered safety glass (where many brands use 3mm), TUV and GS tested for resilience to wind and hail.
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Heavy-duty rubber seals hold every pane in place all the way around, for a tight, better-insulated structure.
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Stainless steel hardware that won't rust or corrode.
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17-gauge tubular aluminum frame, resilient enough to withstand strong wind gusts and hail.
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Full-height single glass panes — no overlapping panels, so it looks cleaner and won't collect dirt.
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Foundation frame included, where other brands usually charge extra.
Other Orangerie Styles
See the Royal Victorian Orangerie for the T-shaped footprint with a classic look, the Royal EOS T (special order), or the compact Junior Orangerie.
Talk to Us
America's leading Janssens dealer. We're experts in greenhouses, sunrooms and garden rooms, and we've been selling Janssens greenhouses — and solutioning them for every type of install — for over 10 years. That long tenure means expert advice on sizing, foundations, knee walls, installation and accessories, and our best price for your project. Please call or text us at 732-806-7959.
FAQ
How is this different from the Royal Victorian Orangerie?
Same T-shaped Orangerie family, but the Antique uses narrower, more decorative glazing, a white frame and a knee-wall mount for a taller entry foyer — more of a designer statement piece.
Do I need a knee wall?
Yes — it's designed to sit on a 2' (24 3/32") knee wall. We'll help you plan the wall and foundation for your site.
Can I use it as a garden room?
Many owners furnish it for seating and entertaining. Like all glass greenhouses it isn't insulated like a room addition — for a fully insulated garden room, see the LIVINGTEN.
Do I need a permit?
Often, since this is a permanent structure on a foundation — check with your local building department before you order.
What if I have more questions?
Call or text us at 732-806-7959 — texting is the fastest way to reach us. We're happy to help.
