Modern Greenhouse

The Janssens Modern greenhouse redefines contemporary garden architecture, replacing traditional ornamentation with a striking, minimalist aesthetic. Defined by its sophisticated single-slope shed roof design, this model features a dramatic, single-directional glass incline engineered to capture maximum ambient light and frame expansive, unobstructed views of your landscape. Crafted in Belgium by Janssens—a family-owned company with over 75 years of elite greenhouse expertise—the Modern greenhouse bridges old-world European heritage with avant-garde engineering. It provides an inviting, sun-drenched sanctuary for both hobbyists and serious collectors who demand architectural distinction alongside superior horticultural performance. Signature Engineering & Modern Design: Sleek Monoslope Profile: A clean, shed-roof architectural silhouette designed to optimize sunlight capture, blend seamlessly against modern structures, and maximize open, airy interior views. Reinforced Portal Framing: Engineered with ultra-sturdy tubular portal frames that deliver clean interior sightlines without sacrificing structural integrity or wind resistance. Premium Perimeter Drainage: Built with extra-strength, heavy-duty tubular gutters integrated flawlessly on all four sides for elite water routing and structural rigidity. Customized Layout Flow: Features completely flexible window and door placement options, allowing you to tailor access points and ventilation paths to perfectly match your landscape’s natural layout. Industrial Glazing: Clad entirely in thick, full-size 4mm tempered safety glass panes to ensure lasting safety, maximum light transmission, and unwavering durability through changing seasons. Model Specifications M23 - (Special Order Only) M34 M36 Length 10'2" (4 panels) 15' (6 panels) 19'11" (8 panels) Width 7'9" (3 panels) 10'2" (4 panels) 10'2" (4 panels) Peak Height 8'10" 9'7" 9'7" Sidewall Height 6'7" 6'7" 6'7" Area 79 sq. ft. 150 sq. ft. 200 sq. ft. Roof Pitch 15 degrees 15 degrees 15 degrees Doors 1 Set of Double Hinged Doors 1 Set of Double Hinged Doors 1 Set of Double Hinged Doors Windows 2 Roof Vents, 2 Push Out Side Windows, 1 Louvre Window 2 Roof Vents, 2 Push Out Side Windows, 2 Louvre Windows 2 Roof Vents, 2 Push Out Side Windows, 2 Louvre Windows Window Openers 1 Automatic + 1 Spindle (Roof), 1 Automatic (Louvre) 1 Automatic + 1 Spindle (Roof), 2 Automatic (Louvre) Automatic + 1 Spindle (Roof), 2 Automatic (Louvre) Glazing 4mm tempered glass panes 4mm tempered glass panes 4mm tempered glass panes Frame 17 gauge tubular aluminum extrusions heavy duty roof extrusions 17 gauge tubular aluminum extrusions heavy duty roof extrusions 17 gauge tubular aluminum extrusions heavy duty roof extrusions Colors Black (RAL9005) Black (RAL9005) Black (RAL9005) Concrete 20x20 Slab + $5,000 + $5,000 + $5,000 Bluestone/Pavers + $10,000 + $10,000 + $10,000 Brick Knee Wall Starting at $6,000 Starting at $6,000 Starting at $6,000 Freight within 60 miles + $2,000 + $2,000 + $2,000 Assembly Starting at $3,000 Starting at $3,000 Starting at $3,000