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The Sigma greenhouse is made with weather-resistant materials, heavy-duty galvanized pipe with a polycarbonate panel, which ensures resistance to rust and corrosion.
A sturdy galvanized pipe frame is also used to make this greenhouse withstand extreme weather conditions and keep the garden safe.
The Sigma greenhouse is extendable, which allows it to accommodate different types of plants and growing techniques.
WHY SIGMA
- Galvanized pipe frame are engineered to be durable and functional
- Comes with 2 doors and vents for easy access and ventilation
- 6mm Twin-Wall Polycarbonate Panels with 100% UV protection
- Wind Resistant up to 65 mph
- Snow load of 32 PSF
- Arched shape - so the wind, snow, and hail just slide off the sides
- Extendable beyond to 100 ft.
- Can be installed with or without a base
- Good insulation with tightly fitted rubber seals and window sealant
- Maintenance-free
- 5 years warranty
Contact us if you have measurement questions when placing the order
Bundle A
- (1) Sigma Greenhouse
- (1) Automatic Window
- (1) Manual Window
- (1) Palma Heater/Fan+Digital Thermostat
Bundle B
- (1) Sigma Greenhouse
- (1) Automatic Window
- (1) Manual Window
- (1) 12ft Wide Polyester Wove Shade
- (1) Bio-Green Digital Thermostate
Bundle C
- (1) Sigma Greenhouse
- (1) Automatic Window
- (1) Manual Window
- (2) Milkhouse Portable Heater 5120 BTU
SUPPORT
- Install Video 2019
- Install Video 2022
- Manual 2021
- 5 Years Warranty Document
- Manual
- Foundation Setup Guide
- Window Installation Guide
- Find an Installer
- Download Built® App Android
- Download Built® App iOS
Contact us if you have measurement questions when placing the order
FAQs
OVER 32 FT QUOTE
The Sigma greenhouse is modular and can be extended in 6 ft increments up to a total length of 100 ft.
Nearby Terminal
Customers who pick up their Planta greenhouse from a local terminal shown on the map may benefit from:
1. Avoid additional delivery wait times
2. Reduce the risk of loss or damage during final delivery
3. Freight can typically fit in a pickup truck, trailer, U-Haul, or cargo van
P.S. Due to the schedule of carrier, Our team will confirm terminal availability with you before your order ships.
We Beat Major Retailers and Online Stores — While Delivering Better Service
From big-box brands to niche greenhouse shops, we’ll match or beat their prices
and deliver faster service with personalized project support
Beat Their PriceACCESSORIES
Window
- Sigma Manual Roof Vents
- Sigma Automatic Roof Vents
- Automatic Window Opener
Shelving & Storage
- Shelf
- Palram Steel Work Bench
- Rion Two Tier Work Bench
- Extension Kit
Climate Control
- Shade Cloth
- Palma Heater
- Phoenix Heater
- Exhaust Fan
- Intake Fan
Gardening Essentials
- Garden Bed
- Composter
- Solar Light
LEARNING
REVIEWS
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