Grandio Greenhouses

Q: What makes Grandio Greenhouses stand out?

Grandio models feature a heavy-duty powder-coated aluminum frame and thick twin-wall polycarbonate panels for year-round protection, backed by a lifetime frame warranty & 10-year panel warranty.

Q: Is it difficult to assemble a Grandio greenhouse?

No. Each kit comes with detailed instructions, a tools-included hardware package, and access to assembly videos. Most models can be built in a day with two people.

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Grandio Ascent 8x12 Greenhouse

Grandio Greenhouses

$3,487.00 $3,687.00

$3,487.00 - $3,687.00

$3,487.00

$ 2,799 00 $3,228.00

$2,799.00 - $3,228.00

$ 2,799 .00

Why Choose the Ascent 8x12 Greenhouse Kit for Your Garden? Lead time: 1–2 days; delivery 1–7 business days Sizes: 8×8, 8×12, 8×16, 8×20, 8×24 Pa...

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Grandio Ascent 8x16 Greenhouse

Grandio Greenhouses

$3,989.00 $4,389.00

$3,989.00 - $4,389.00

$3,989.00

$ 3,599 00 $4,118.00

$3,599.00 - $4,118.00

$ 3,599 .00

1

Why Should You Get the Ascent 8x16 Greenhouse Kit for Your Garden? Actual Size: 8'2" W x 16' L x 7'9" H Sizes: 8×8–8×24 (5 options) Panels: 6 mm...

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Grandio Ascent 8x20 Greenhouse

Grandio Greenhouses

$4,869.00 $5,169.00

$4,869.00 - $5,169.00

$4,869.00

$ 4,399 00 $4,998.00

$4,399.00 - $4,998.00

$ 4,399 .00

Is the Ascent 8x20 Greenhouse Kit Your Ideal Year-Round Gardening Solution? Actual size: 8'2" W × 19'11" L × 7'9" H Sizes: 8×8–8×24 (5 options) ...

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Grandio Ascent 8x24 Greenhouse

Grandio Greenhouses

$5,679.00 $5,979.00

$5,679.00 - $5,979.00

$5,679.00

$ 5,199 00 $5,888.00

$5,199.00 - $5,888.00

$ 5,199 .00

Is the Ascent 8x24 Greenhouse Kit the Right Choice for Your Garden? Actual size: 8'2" W × 23'10" L × 7'9" H Sizes: 8×8, 8×12, 8×16, 8×20, 8×24 P...

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Grandio Ascent 8x8 Greenhouse

Grandio Greenhouses

$2,769.00 $2,969.00

$2,769.00 - $2,969.00

$2,769.00

$ 1,999 00 $2,348.00

$1,999.00 - $2,348.00

$ 1,999 .00

Does the Ascent 8x8 Greenhouse Kit Have Everything You Need for Your Year-Round Gardening? Model: 8×8 (64 sq ft) Panels: 6 mm twin-wall (R≈1.54,...

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Grandio Element 6x12 Greenhouse

Grandio Greenhouses

$2,789.00 $2,989.00

$2,789.00 - $2,989.00

$2,789.00

$ 2,299 00 $2,728.00

$2,299.00 - $2,728.00

$ 2,299 .00

Currently on backorder. We are accepting orders now. Expected back in stock by early October. Why Choose the Grandio Element 6x12 Greenhouse Kit f...

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Grandio Greenhouses - Element 6x4 Greenhouse Kit - Front

Grandio Element 6x4 Greenhouse

Grandio Greenhouses

$1,879.00 $1,979.00

$1,879.00 - $1,979.00

$1,879.00

$ 1,099 00 $1,368.00

$1,099.00 - $1,368.00

$ 1,099 .00

1

Why Should You Choose the Element 6x4 Greenhouse Kit for Your Garden? Actual size: 6' W × 4' L × 7' H Panels: 10 mm twin-wall (R≈1.89, U≈0.53) F...

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Grandio Element 6x8 Greenhouse

Grandio Greenhouses

$1,999.00 $2,299.00

$1,999.00 - $2,299.00

$1,999.00

$ 1,699 00 $2,048.00

$1,699.00 - $2,048.00

$ 1,699 .00

Currently on backorder. We are accepting orders now. Expected back in stock by early October. Is the Element 6x8 Greenhouse Kit Right for Your Spac...

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Grandio Elite 8x12 Greenhouse

Grandio Greenhouses

$3,999.00 $4,299.00

$3,999.00 - $4,299.00

$3,999.00

$ 3,499 00 $3,928.00

$3,499.00 - $3,928.00

$ 3,499 .00

Does the Elite 8x12 Greenhouse Kit Offer the Best Year-Round Gardening Solution? Actual size: 8'2" W × 12' L × 8' H Sizes: 8×8, 8×12, 8×16, 8×20...

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Grandio Elite 8x16 Greenhouse

Grandio Greenhouses

$4,999.00 $5,199.00

$4,999.00 - $5,199.00

$4,999.00

$ 4,399 00 $4,918.00

$4,399.00 - $4,918.00

$ 4,399 .00

Why Choose the Elite 8x16 Greenhouse Kit for Your Year-Round Gardening Needs? Actual size: 8'2" W × 16' L × 8' H Sizes: 8×8, 8×12, 8×16, 8×20, 8...

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Grandio Elite 8x20 Greenhouse

Grandio Greenhouses

$5,499.00 $6,564.00

$5,499.00 - $6,564.00

$5,499.00

$ 5,299 00 $5,898.00

$5,299.00 - $5,898.00

$ 5,299 .00

Why Choose the Grandio Elite 8x20 Greenhouse Kit For Your Year-Round Gardening? Actual size: 8'2" W × 19'11" L × 8' H Sizes: 8×8, 8×12, 8×16, 8...

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Grandio Greenhouses - Elite 8x24 Greenhouse Kit - Isolated

Grandio Elite 8x24 Greenhouse

Grandio Greenhouses

$6,399.00 $7,665.00

$6,399.00 - $7,665.00

$6,399.00

$ 6,199 00 $6,888.00

$6,199.00 - $6,888.00

$ 6,199 .00

Why Choose the Grandio Elite 8x24 Greenhouse Kit for Your Year-Round Gardening Needs? Actual Size(Base Kit): 8'2" W x 23'10" L x 8" H Sizes: 8x8...

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Grandio Elite 8x8 Greenhouse

Grandio Greenhouses

$3,399.00 $3,599.00

$3,399.00 - $3,599.00

$3,399.00

$ 2,599 00 $2,948.00

$2,599.00 - $2,948.00

$ 2,599 .00

1

Why Pick the Elite 8x8 Greenhouse Kit for Year-Round Gardening? Sizes: 8×8, 8×12, 8×16, 8×20, 8×24 Panels: 10 mm twin-wall polycarbonate (R≈1.89...

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Grandio Summit 12x12 Greenhouse

Grandio Greenhouses

$5,799.00 $5,999.00

$5,799.00 - $5,999.00

$5,799.00

$ 4,899 00 $5,588.00

$4,899.00 - $5,588.00

$ 4,899 .00

Why Pick the Summit 12x12 Greenhouse Kit for Your Garden? Actual size: 12' W × 12' L × 9.25' H Sizes: 12x8, 12x12, 12x16, 12x20, 12x24, 12x28, 1...

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Grandio Summit 12x16 Greenhouse

Grandio Greenhouses

$6,789.00 $6,989.00

$6,789.00 - $6,989.00

$6,789.00

$ 5,899 00 $6,818.00

$5,899.00 - $6,818.00

$ 5,899 .00

Why Pick the Summit 12x16 Greenhouse Kit for Your Garden? Actual size: 12' W × 15.89' L × 9.25' H Sizes: 12×8, 12×12, 12×16, 12×20, 12×24, 12×28...

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Grandio Summit 12x20 Greenhouse

Grandio Greenhouses

$7,599.00 $7,999.00

$7,599.00 - $7,999.00

$7,599.00

$ 6,899 00 $7,988.00

$6,899.00 - $7,988.00

$ 6,899 .00

Why Pick the Summit 12x20 Greenhouse Kit for Your Year-Round Gardening? Actual size: 12' W × 19.78' L × 9.25' H Sizes: 12×8, 12×12, 12×16, 12×20...

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Grandio Summit 12x24 Greenhouse

Grandio Greenhouses

$8,699.00 $9,699.00

$8,699.00 - $9,699.00

$8,699.00

$ 7,899 00 $9,158.00

$7,899.00 - $9,158.00

$ 7,899 .00

Why Choose the Summit 12x24 Greenhouse Kit for Year-Round Gardening Success? Actual size: 12' W × 23.68' L × 9.25' H Sizes: 12x8, 12x12, 12x16, ...

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Grandio Greenhouses - Summit 12x28 Greenhouse Kit - Main

Grandio Summit 12x28 Greenhouse

Grandio Greenhouses

$9,999.00 $10,999.00

$9,999.00 - $10,999.00

$9,999.00

$ 8,899 00 $10,328.00

$8,899.00 - $10,328.00

$ 8,899 .00

Is the Summit 12x28 Greenhouse Kit the Solution for Your Year-round Gardening Needs? Actual size: 12' W × 28' L × 9.25' H Sizes: 12x8, 12x12, 12...

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Grandio Summit 12x32 Greenhouse

Grandio Greenhouses

$10,999.00 $12,999.00

$10,999.00 - $12,999.00

$10,999.00

$ 9,899 00 $11,498.00

$9,899.00 - $11,498.00

$ 9,899 .00

Is the Summit 12x32 Greenhouse Kit the Right Choice for Your Gardening Needs? Actual size: 12' W × 32' L × 9.25' H Sizes: 12x8, 12x12, 12x16, 12...

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Grandio Summit 12x8 Greenhouse

Grandio Greenhouses

$4,589.00 $4,789.00

$4,589.00 - $4,789.00

$4,589.00

$ 3,899 00 $4,418.00

$3,899.00 - $4,418.00

$ 3,899 .00

Why Choose the Summit 12x8 Greenhouse Kit for Year-Round Growing? Actual size: 12' W × 8'1" L × 9.25' H Sizes: 12x8, 12x12, 12x16, 12x20, 12x24,...

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GRANDIO SUMMIT STANDARD FEATURES

Lifetime frame warranty, 10-year panel coverage
Uses standard stainless steel bolts and hardware
Includes a detailed, easy-to-follow assembly guide
Backed by expert support from the same team that built the greenhouse

GRANDIO ELITE STANDARD FEATURES

Lifetime frame warranty, 10-year panel coverage
Uses standard stainless steel bolts and hardware
Includes a detailed, easy-to-follow assembly guide
Backed by expert support from the same team that built the greenhouse

GRANDIO ASCENT STANDARD FEATURES

Lifetime frame warranty, 10-year panel coverage
Uses standard stainless steel bolts and hardware
Includes a detailed, easy-to-follow assembly guide
Backed by expert support from the same team that built the greenhouse

GRANDIO ELEMENT STANDARD FEATURE

Lifetime frame warranty, 10-year panel coverage
Uses standard stainless steel bolts and hardware
Includes a detailed, easy-to-follow assembly guide
Backed by expert support from the same team that built the greenhouse

Frequently Asked Questions

What makes Grandio Greenhouses stand out?

Grandio models feature a heavy‑duty powder‑coated aluminum frame and thick twin‑wall polycarbonate panels for year‑round protection, backed by a lifetime frame warranty & 10‑year panel warranty.

Are these greenhouses built to withstand wind and snow?

Yes. All Grandio kits are engineered to withstand gusts up to 76 mph and support up to 25 lb/ft² of snow load. Bracing and reinforcement components are included for added strength.

Is it difficult to assemble a Grandio greenhouse?

No. Each kit comes with detailed instructions, a tools‑included hardware package, and access to assembly videos. Most models can be built in a day with two people.

Can I use automatic vent openers?

Yes — roof and louver vent openers are available as accessories (no electricity needed) and they adjust ventilation based on temperature changes.

What warranty comes with Grandio Greenhouses?

All Grandio Greenhouses include a lifetime warranty on the aluminum frame and a 10-year warranty on the polycarbonate panels.

Do you ship internationally?

Currently, shipping is offered only within the USA and Canada.

Location

We are located in central California and sell online only.

Free Shipping

When you spend $200+

5 Star Reviews

Thousands of
Satisfied Customers.

Give Us A Call

1-800-540-9051