Single Slope Greenhouse
Exterior Views (3)
Exterior View 1
Interior Views (2)
Interior View 1
Our Single Slope Greenhouses feature a modern lean-to design with a roof that slopes in one direction, creating optimal growing conditions for vegetables, herbs, flowers, and seedlings year-round in Pennsylvania, Maryland, Delaware, and New Jersey. The asymmetrical roof design provides excellent water drainage while maximizing interior height on one sideāperfect for tall plants, hanging baskets, and tiered growing systems.
Built with premium polycarbonate panels that transmit 80-90% of natural light while providing superior insulation compared to glass, these greenhouses maintain stable temperatures during cold winters and hot summers. The single-sloped roof design also makes positioning flexibleāplace it freestanding in your garden or attach it against an existing barn, garage, or house wall to create a space-efficient growing environment that extends your growing season by 3-6 months.
Each greenhouse includes a pressure-treated wood frame on skids, 24-inch potting benches on three sides for convenient workspace, a 16-inch electric exhaust fan for temperature management, and a storm screen door for easy access and ventilation. Whether you're starting spring seedlings, growing winter greens, cultivating orchids, or propagating perennials, our single slope greenhouses provide the controlled environment serious gardeners need.
Key Features
- Modern Design: Contemporary single-sloped roof for aesthetic appeal and functionality
- Excellent Drainage: Sloped roof ensures proper water runoff to protect plants and structure
- Optimal Light Exposure: Designed to maximize natural light for healthier plant growth
- Space Efficiency: Perfect for placement against existing structures to save space
- Durable Construction: Sturdy wood frame with polycarbonate panels built to last
- Pressure-Treated Base: Ensures longevity and stability in all weather conditions
- Built-in Ventilation: Proper airflow for optimal plant growth and climate control
- Standard Entry Door: Functional entry door with latch for convenient access
Single Slope Greenhouse Pricing
8X8 to 12X24 Available Sizes
| Structure Size | Polycarbonate Panel Price |
|---|---|
| 6X8 | $4,240 |
| 8X8 | $4,535 |
| 8X10 | $4,790 |
| 8X12 | $5,085 |
| 8X14 | $5,335 |
| 8X16 | $5,635 |
| 10X10 | $5,680 |
| 10X12 | $5,860 |
| 10X14 | $6,290 |
| 10X16 | $6,560 |
| 10X18 | $6,930 |
| 10X20 | $7,200 |
| 12X12 | $6,815 |
| 12X14 | $7,120 |
| 12X16 | $7,425 |
| 12X18 | $7,760 |
| 12X20 | $8,105 |
| 12X24 | $8,975 |
Select a Greenhouse Size to Calculate Combined Pricing:
Optional Porch Additions with Pergola Tops
Add a functional porch area to your greenhouse, each featuring an attractive pergola-style top. Every porch is 3 feet deep and matches the length of your greenhouse, providing both shade and architectural appeal.
Pricing: Treated Wood ($30.00/sq ft) | Trex Composite ($35.00/sq ft)
| Porch Size | Treated Wood | Trex Composite |
|---|---|---|
| 3'X8' | $720 | $840 |
| 3'X10' | $900 | $1,050 |
| 3'X12' | $1,080 | $1,260 |
| 3'X14' | $1,260 | $1,470 |
| 3'X16' | $1,440 | $1,680 |
| 3'X18' | $1,620 | $1,890 |
| 3'X20' | $1,800 | $2,100 |
| 3'X24' | $2,160 | $2,520 |
Note: Porch pricing is additional to the base greenhouse pricing. Add your selected porch option to the base structure price for total cost.
Standard Greenhouse Features
Every Single Slope Greenhouse comes with these quality components
Pressure-Treated Wood Frame
2x4 Pressure-Treated Wood Frame built on skids for durability and stability
Quality Flooring
5/4 pressure treated decking with floor joists spaced 16" on center
Premium Polycarbonate Panels
High-quality polycarbonate panels for optimal light transmission and durability
MiraTEC Trim
Professional-grade trim for a clean, finished appearance
Entry Door
Standard 32" Ć 80" Storm Screen Door for easy access and ventilation
Built-in Workspaces
24" Potting bench on three sides for convenient gardening workflow
Climate Control
16" Electric exhaust fan with outlet included for temperature management
Hardware
All necessary hardware and fasteners included for assembly
What Are Polycarbonate Panels?
Understanding the advanced materials that make our greenhouses exceptional
Polycarbonate panels are lightweight, highly durable transparent or translucent sheets made from thermoplastic polymer. They offer significant advantages for greenhouse construction, making them the superior choice for serious gardeners and professional growers.
Superior Light Transmission
Allows 80-90% of natural light to pass through while diffusing it to reduce hot spots and plant burn.
Excellent Insulation
Provides better thermal insulation than glass, helping maintain stable temperatures.
UV Protection
Most panels include UV protection to shield plants from harmful rays while allowing beneficial light through.
Impact Resistance
Virtually unbreakable and 200 times stronger than glass, withstanding extreme weather conditions.
Lightweight
Easier to handle and install than glass, putting less stress on the structure.
Versatility
Available in various thicknesses, colors, and configurations to suit specific growing needs.
Premium Quality for Your Garden
Our Single Slope Greenhouses utilize premium polycarbonate panels to create the ideal growing environment for your plants throughout all seasons. Experience the difference that professional-grade materials make in your gardening success.
Get Your Single Slope Greenhouse Quote
Connect with our team for personalized pricing and expert guidance
Size Options
Custom Sizes Available
Features
Single Slope Design
Delivery
PA, NJ, DE, MD
Additional Information
Why Customers Choose Greenhouses
Discover what drives the passion for year-round growing
Visible Goals
- I need a controlled environment to extend my growing season
- I want to protect delicate plants from frost and pests
- I need more space to start seedlings and propagate plants
True Goals
- "I want to see myself as a real gardener who grows year-round"
- "If I have a greenhouse, I'll finally achieve the garden of my dreams"
- "I need a space where I can nurture life and watch things grow"
What Can You Grow?
Discover the diverse range of plants and crops that thrive in your single slope greenhouse
Vegetable & Herb Production
Year-round vegetable growing including lettuce, spinach, kale, tomatoes, peppers, and cucumbers. Fresh herb cultivation for basil, cilantro, parsley, oregano, and thyme. Earlier spring planting and extended fall harvests. Winter greens production even in cold climates.
Seedling Starting & Propagation
Start seeds 6-8 weeks earlier than outdoor planting with controlled environment for germination success. Perfect propagation station for cuttings and divisions. Dedicated hardening off area before transplanting outdoors.
Flower Growing & Ornamental Plants
Orchid cultivation with climate control. Tropical plant overwintering. Cut flower production including roses, carnations, and gerbera daisies. Hanging basket production for spring sales.
Season Extension & Market Gardening
3-6 month growing season extension for increased productivity. Market gardening and farm stand production. CSA (Community Supported Agriculture) operations. Early spring crops for farmers markets.
Lean-To Design Advantages
Why the single slope design is perfect for efficient growing
- Space-efficient footprint compared to freestanding greenhouses
- Higher back wall accommodates tall plants and shelving systems
- Natural drainage away from foundation when attached to building
- Reduced heating costs when attached to heated building (shared warmth)
- Easier access from house/barn during winter weather
Placement Strategies
1. Optimal Sun Exposure
Position with roof slope facing south or southeast for maximum winter sun exposure. Southern-facing placement captures 6-8 hours of direct sunlight during short winter days.
2. Attachment vs. Freestanding
Attach to south-facing building wall to reduce heating costs by 20-30% through shared warmth and wind protection. Freestanding works well when unlimited southern sun access is available.
3. Foundation Considerations
Can be placed on level gravel base, concrete slab, or existing patio. Pressure-treated skids allow easy leveling on uneven terrain.
4. Accessibility Planning
Place within 100 feet of water source for convenient irrigation. Consider electrical access for exhaust fan, heating, or grow lights.
Built for Year-Round Growing
Quality construction and materials for lasting performance
Premium Polycarbonate Panels
- ā¢ Twin-wall insulation (R-value 1.7-2.0)
- ā¢ UV-protected surface prevents yellowing
- ā¢ Diffuses light to eliminate hot spots
- ā¢ 200Ć stronger than glass
- ā¢ Lightweight, reduces structural stress
- ā¢ 10-year manufacturer warranty
Pressure-Treated Framework
- ā¢ 2Ć4 pressure-treated lumber
- ā¢ Built on 4Ć6 pressure-treated skids
- ā¢ Floor joists spaced 16" on center
- ā¢ MiraTEC trim resists rot and termites
- ā¢ Galvanized/stainless fasteners
- ā¢ 20+ year structural lifespan
Climate Control & Ventilation
- ā¢ 16-inch electric exhaust fan included
- ā¢ Storm screen door for cross-ventilation
- ā¢ Polycarbonate retains heat overnight
- ā¢ Optional thermostat control available
- ā¢ Roof peak vent placement
- ā¢ Prevents fungal diseases and mold
Maximize Your Growing Success
Expert tips for optimal greenhouse performance
Temperature Management
- ā¢ Monitor with min/max thermometer
- ā¢ Target 50-85Ā°F for vegetables, 60-90Ā°F for tropicals
- ā¢ Run exhaust fan when temps exceed 85Ā°F
- ā¢ Add shade cloth in summer if needed
- ā¢ Consider small electric heater for winter below 40Ā°F
Ventilation Scheduling
- ā¢ Open door on sunny days above 60Ā°F
- ā¢ Run fan continuously on hot summer days (80Ā°F+)
- ā¢ Crack door slightly at night during summer
- ā¢ Seal door and minimize fan use in winter
- ā¢ Fresh air exchange prevents disease
Bench Organization
- ā¢ Use 24" benches for seedling trays and pots
- ā¢ Organize by plant type: seedlings near door
- ā¢ Install shelves above benches for vertical space
- ā¢ Keep frequently used tools within reach
- ā¢ Utilize underneath bench for storage
Watering & Irrigation
- ā¢ Install drip irrigation for consistent watering
- ā¢ Water early morning to reduce disease risk
- ā¢ Monitor soil moistureāplants dry out faster
- ā¢ Collect roof runoff in rain barrel
- ā¢ Adjust watering by season and plant needs
Single Slope Greenhouse Foundation Options
Single Slope Greenhouses benefit from proper site preparation that takes advantage of their unique sloped design. The single slope roof naturally sheds water and snow, making drainage considerations especially important. While smaller structures can work on level ground, proper foundation preparation maximizes the benefits of the slope design.
Foundation Benefits for Single Slope Design:
- ā¢ Enhanced Drainage: Proper foundation maximizes natural water runoff
- ā¢ Optimal Light Exposure: Level placement ensures best solar angle benefits
- ā¢ Weather Protection: Foundation prevents water pooling and frost damage
- ā¢ Extended Season: Better insulation and climate control efficiency
Stone Foundation (Recommended)
Level stone base with treated lumber border - optimal for single slope greenhouse design
- Excellent drainage for slope design
- Natural temperature regulation
- Cost-effective solution
- Complements architectural style
Concrete Pad
Solid concrete foundation for maximum stability and optimal water runoff
- Perfect level surface for slope design
- Superior drainage management
- Maximum durability
- Professional appearance
Level Ground Placement
For smaller single slope greenhouses on naturally level, well-draining sites
- Most economical option
- Quick installation
- Natural site integration
- Suitable for temporary setups
Professional Site Preparation Available
Maximize your Single Slope Greenhouse's natural advantages with professional site preparation. Our team understands how to optimize drainage and positioning to take full advantage of the single slope design for year-round growing success.
Single Slope Advantages with Proper Foundation:
- ā¢ Superior snow and rain runoff
- ā¢ Optimal solar angle for winter growing
- ā¢ Natural ventilation benefits
- ā¢ Enhanced structural stability
What We Provide:
- ā¢ Site evaluation for optimal slope orientation
- ā¢ Professional drainage design and installation
- ā¢ Foundation preparation (stone or concrete)
- ā¢ Climate optimization recommendations
Common Questions About Our Sheds
Find answers to frequently asked questions about our shed styles, materials, and options
Pricing Information
- ā¢Prices shown for delivery fully assembled. Free within 10 miles of Parkesburg, PA; $5-$7.50/mile beyond.
- ā¢Optional professional installation available at additional cost using a stone pad. Level site with adequate access required.
- ā¢Prefab/build-on-site construction available for custom orders at 30% additional cost. Ideal for limited access properties or custom foundations.
- ā¢We assist with site preparation and help customers obtain permits. Contact us for detailed pricing specific to your requirements.
- ā¢Contact us for detailed pricing specific to your requirements.
Similar Structures
Explore other specialty structures for your property
What Are Polycarbonate Panels?
Understanding the advanced materials that make our greenhouses exceptional
Polycarbonate panels are lightweight, highly durable transparent or translucent sheets made from thermoplastic polymer. They offer significant advantages for greenhouse construction, making them the superior choice for serious gardeners and professional growers.
Superior Light Transmission
Allows 80-90% of natural light to pass through while diffusing it to reduce hot spots and plant burn.
Excellent Insulation
Provides better thermal insulation than glass, helping maintain stable temperatures.
UV Protection
Most panels include UV protection to shield plants from harmful rays while allowing beneficial light through.
Impact Resistance
Virtually unbreakable and 200 times stronger than glass, withstanding extreme weather conditions.
Lightweight
Easier to handle and install than glass, putting less stress on the structure.
Versatility
Available in various thicknesses, colors, and configurations to suit specific growing needs.
Premium Quality for Your Garden
Our Single Slope Greenhouses utilize premium polycarbonate panels to create the ideal growing environment for your plants throughout all seasons. Experience the difference that professional-grade materials make in your gardening success.