Skip to content
Contact Us Price Match Guarantee FAQs Why Buy From Us About Us Customer Reviews Installer Program Build Your System
Grandio Ascent 8x12 Greenhouse Kit

Grandio Ascent 8x12 Greenhouse Kit
Sold out
$3,099.00
$3,099.00 - $3,576.00
$3,099.00
$2,799.00
$2,799.00 - $3,228.00
$2,799.00
✓ Authorized Grandio Dealer
✓ Lowest Price Match Guarantee
✓ FAST & FREE Shipping: ETA Late December
✓ Questions? Talk to a Grandio Expert: 303-876-7654
✓ Price Match Gaurantee

Login for Exclusive Member Pricing.
Not a member? Create a Free Account.

PRODUCT NAME
Anchor Option: Wood
Premium Upgrade: No Upgrade
Grandio

Grandio Ascent 8x12 Greenhouse Kit

The Grandio Ascent 8x12 is the most popular size in the Ascent line, pairing 96 square feet of growing space with a 7 ft 9 in peak that gives you full walk-in headroom. The steel base kit and snow load kit come included, so it is winter ready straight out of the box.

Best for: running multiple growing zones at once, such as seedlings on one side and mature plants on the other, with room left for shelving and grow beds. An optional back door transformation kit adds a second entrance for a walkthrough layout.

Grandio Ascent 8x12 Greenhouse Kit
Lowest Price Guarantee
Authorized Grandio Dealer
Genuine Grandio Equipment
Free Shipping
0% APR Financing via Affirm
Talk to a Human: (303) 876-7654

Why the Grandio Ascent 8x12 Greenhouse Kit

7 ft 9 in peak height with wide 3 ft 6 in double sliding

7 ft 9 in peak height with wide 3 ft 6 in double sliding doors for carts and wheelbarrows

Heavy duty 1.2mm powder-coated aluminum frame, rust proof

Heavy duty 1.2mm powder-coated aluminum frame, rust proof with a lifetime frame warranty

6mm twin-wall polycarbonate panels for insulation and even

6mm twin-wall polycarbonate panels for insulation and even light diffusion

Three roof vents with multi-level handles, plus built-in

Three roof vents with multi-level handles, plus built-in rain gutters

Steel base kit and snow load kit

Steel base kit and snow load kit included

Rated for 76 mph winds and 25 lbs per sq ft of snow when

Rated for 76 mph winds and 25 lbs per sq ft of snow when properly anchored

Grandio Ascent 8x12 Greenhouse Kit Specifications

Dimensions 8 ft W x 12 ft L x 7 ft 9 in H
Frame 1.2mm heavy duty aluminum, powder coated green
Panels 6mm twin-wall polycarbonate
Door Bind resistant double sliding door, 3 ft 6 in x 6 ft
Roof Vents 3
Rain Gutters Built-in
Steel Base Kit Included
Snow Load Kit Included
Back Door Kit Optional
Snow Rating 25 lbs/sq ft maximum snow load
Wind Rating Up to 76 mph when anchored properly
Extendable Yes
Warranty Lifetime frame, 15 year panels

Documentation & Downloads

Grandio Ascent 8x12 Greenhouse Kit Spec Sheet (PDF)

Lowest Price Guarantee

Find it cheaper at another authorized Grandio dealer? Call us before you order and we will take care of you.

Authorized Grandio Dealer

This is genuine Grandio equipment, sold and supported by Renewable Outdoors as an authorized dealer.

Help From People Who Sell These Every Day

Call (303) 876-7654. We would rather spend ten minutes sizing your system correctly than process a return later.

Grandio Ascent 8x12 Greenhouse Kit: Frequently Asked Questions

How big and heavy is the Ascent 8x12 Greenhouse Kit?
The Ascent 8x12 Greenhouse Kit has dimensions of 8 ft W x 12 ft L x 7 ft 9 in H. Plan your mounting and placement around those figures.
Is this genuine Grandio equipment?
Yes. Renewable Outdoors is an authorized Grandio dealer, and this product is genuine Grandio equipment.
Does Renewable Outdoors offer financing or price matching?
Yes. We offer 0% APR financing options through Affirm at checkout, and the Ascent 8x12 Greenhouse Kit is backed by our Lowest Price Guarantee — if you find it cheaper at another authorized Grandio dealer, call us at (303) 876-7654 before you order and we will take care of you.
Renewable Outdoors LLC BBB Business Review