The Hoklartherm Nelke 4 Pro Greenhouse blends traditional A-frame styling with advanced materials and innovative features to deliver a greenhouse that is as functional as it is durable. Designed for year-round growing, the Nelke 4 Pro is ideal for gardeners who want premium quality, enhanced usability, and a space that adapts to their needs. The anthracite gray powder coat finish adds a classy touch.

Key Features:

Frame Color: Anthracite

16mm Triple-Wall Polycarbonate Glazing

• Provides superior insulation and light diffusion, perfect for protecting plants in all weather conditions.  R value is ~3.0.
• UV-blocker is infused directly into the polycarbonate panels for long-lasting protection from discoloring, eliminating the need for external films.

Enhanced Ventilation and Accessibility

• Includes two roof vents with automatic openers and a large rear-wall window to ensure consistent airflow and temperature control.
• Features a specially designed extra-wide 38" ADA-friendly Dutch barn-style door (71" tall), providing easy access for all users.

Superior Strength and Stability

• Equipped with turn-buckle cross supports, boosting snow load capacity to 2,000 lbs., as verified by sandbag testing.
• Additional rubber seals at the top and bottom of roof panels provide an extra layer of weather resistance.

Modern Upgrades for Maximum Durability

• Superior doors and hardware quality enhance usability and ensure longevity.
• A heavy-duty aluminum frame combined with advanced engineering withstands harsh climates, including snow, wind, and UV exposure.

What's Included

• 2 Roof Vents with Automatic Openers
• Large rear-wall window
• Extra wide Dutch Barn Style Door: 38 x 71 in

Available Accessories

Drop Door Kit

• Yes, we have a drop door kit for the NELKE 4 PRO! It consists of two longer vertical studs (for each side of the door), and a longer polycarbonate piece for above the door. These are all sized for a 20" wall. If you want to go with a shorter wall, you will need to precisely cut the two metal verticals at the top at the matching gable angle (not the bottom - doing that would result in misplaced hinge attachment holes), as well as trimming the polycarbonate piece to fit.

Decoration

• Solid cast aluminum roof crests and finials (including center finial).  Gorgeous and durable.

Foundation

• Foundation Base - Anodized Aluminum, 6" high, intended to be buried in a trench, greenhouses attaches directly to it.  Can be used instead of a concrete or wooden footing.  Not for use if building the greenhouse on a wall.

Shelving

• Top Shelf - 10" x 13' 10"
  This shelf is supported by diagonal braces at each vertical stud profile.
• Bottom Shelf - 25" x 13' 10"
  The ends of this shelf attach securely to the horizontal profile at the ends of the greenhouse, and there are diagonal supports at each greenhouse vertical stud profile.  Note that if you are building the greenhouse on a wall, you will probably want to install the shelf lower, and adjust the end diagonal supports to attach directly to the wall.

Dimensions

• 9 ft 8 in wide x 14 ft long x 8  ft high center
• Gutters: 5 ft 3 in
• Extra wide barn style door- 38 x 71 in -  ADA rated.

Why Choose the Nelke4 Pro Greenhouse?

Exceptional Insulation: The 16mm triple-wall panels provide unmatched heat retention, making it ideal for year-round gardening.
Advanced Ventilation: Automatic roof vent openers and large windows create a well-regulated environment for optimal plant growth.
ADA-Friendly Design: Extra-wide doors ensure easy entry, even with wheelbarrows or mobility aids.
Increased Snow Load Capacity: Reinforced cross supports make it one of the sturdiest greenhouses on the market.

Whether you’re cultivating vegetables, herbs, or flowers, the Hoklartherm Nelke 4 Pro Greenhouse offers the perfect environment for growing lush, healthy plants. Its combination of modern engineering and traditional design creates a greenhouse that’s both practical and visually stunning.

Order your Nelke4 Pro today and bring a professional-grade growing solution to your backyard!

INSTALLATION MANUAL

WARRANTY

• Polycarbonate: 10 years (prorated after 5 years)
• Frame: 15 years