Trillium – Luxury Greenhouse for Compact Gardens and Small Spaces

A compact luxury redwood greenhouse kit handcrafted in Oregon.

The Trillium is our most space-efficient freestanding greenhouse — perfect for urban patios, small backyards, and productive gardens where every square foot matters. Built from premium redwood and finished with architectural detail, the Trillium delivers big growing potential in a beautifully proportioned design that reflects Sturdi Built’s tradition of handcrafted quality.

Included With Your Trillium Greenhouse Kit

Each Trillium is constructed with the same precision joinery and heirloom craftsmanship found in our larger models, scaled for smaller spaces without compromise.

Durable, High-Quality Construction

• 18″ redwood basewall with Brazilian cedar trim and built-in screened vents — combines strength, beauty, and natural airflow

• 6mm twin-wall polycarbonate roof — superior insulation and energy efficiency for year-round growing

• 1/8″ annealed glass walls — exceptional clarity and maximum light transmission

• Engineered for 35 PSF snow load and 75 MPH wind speeds — optional All-Weather Kits available for harsher climates

Ventilation & Climate Control

Designed for effortless comfort, the Trillium maintains a stable growing climate through solar-powered roof vents, screened jalousie windows, and fully screened ventilation on all sides.

Interior gutters with drainage tubing manage condensation and protect your greenhouse for decades of use.

Convenient, Customizable Entry

A full-lite hinged door (24″ × 6′-6″) with tempered glass panels welcomes natural light while providing long-lasting durability — a detail that distinguishes every Sturdi Built design.

Easy, Efficient Installation

Pre-assembled gable ends, roof, and sidewalls simplify setup while maintaining the precision fit of custom Oregon-built greenhouse panels.

Printed and digital manuals guide you through each step for a confident installation.

Customize Your Trillium Greenhouse

Basewall Options
Choose our matching 18″ redwood basewall kit or build your own custom masonry base for added style and insulation. [Learn more →]

Thermal Option™
Upgrade to our exclusive double-glazing system for improved warmth, diffused light, and energy savings in cooler climates — an elegant enhancement for a premium redwood greenhouse kit. [Learn more →]

Plant Benches
Handcrafted redwood benches designed to maximize growing space and enhance greenhouse organization. [Learn more →]

Garden Kit
A complete set of tools to control airflow, temperature, and humidity for healthier plant growth. [Learn more →]

All-Weather Kit
Added reinforcement for snow and wind-prone regions—engineered for higher loads without altering the Trillium’s clean design. [Learn more →]

Purchase

Ready to purchase The Trillium? Prices shown online include processing fees, but when you order directly through us, you’ll receive preferred pricing and personal support.

Call (503) 244-4100 to speak with our team — we’ll prepare a detailed estimate, help you customize features, and ensure your small-space greenhouse fits your goals perfectly. Learn about designing the perfect small greenhouse for home gardens.

Shipping & Delivery Information

Each Trillium is handcrafted in Oregon and carefully packaged for delivery across the contiguous U.S. and Canada, complete with clear, step-by-step installation instructions.

Your greenhouse arrives ready to assemble — a reflection of the quality, precision, and care that define every Sturdi-Built luxury greenhouse.