Sunshine Mt. Hood Gardenhouse

Redwood is naturally resistant to decay and insects, making it an excellent choice for a greenhouse frame. While it is durable, we recommend applying a wood preservative or stain periodically to maintain its appearance and longevity against weathering.

Yes, the Mt. Hood Gardenhouse is designed with an expandable structure. You can purchase extension kits to increase the length of the greenhouse as your gardening needs grow.

The vents are equipped with heat-sensitive cylinders that expand as the temperature rises, automatically pushing the vents open to release heat. They require no electricity or manual adjustment, ensuring your plants stay at a consistent temperature throughout the day.

The structure is rated for wind resistance up to 85 mph and a snow load capacity of 18 lbs. per square foot. The 45-degree roof slope is specifically designed to help snow shed off the roof efficiently, preventing heavy accumulation.

It includes a recycled plastic base, which provides a stable, rot-resistant perimeter for the structure. However, you will still need to prepare a level site—such as a gravel pad, concrete slab, or pavers—to ensure the greenhouse sits securely.

The 4.5mm twin wall design creates an air pocket that acts as insulation, which is significantly more efficient at retaining heat than single-pane glass or plastic. This helps extend your growing season by keeping the interior warmer during cooler months while still allowing ample light transmission.