Page Header: Expandable Greenhouses
The Expandable Greenhouse is a timeless solution for any ambitious gardener with an eye on the future. Start with one of our base 8' x 6', 8' x 8', 8' x 10' or 8' x 12' models and add additional units anytime you need more space. Every Expandable Greenhouse is generously proportioned with 6'9" tall side walls and 9'3" roof peak offering more true internal space then comparable greenhouses on the market. Each size is available in one three window configurations to fit any budget requirement. For the high tech gardener we offer the Polycarbonate Expandable with UV coated transparent twin wall windows that meet or exceed the most demanding planed community requirements. Our Glass Expandable is the ultimate aesthetic with high tech UV coated polycarbonate roof panels and clear tempered safety glass side windows.

All Expandable Greenhouses offer the following standard benefits:

Gorgeous kiln dried fir construction available either treated to resist UV and moisture damage or untreated for you to apply stain, paint or protective coatings

Extra wide sliding door entrance that is large enough to permit wheelbarrows and mobile assistance devices

Versatile slotted benching system that drains water efficiently and can be configure in 14 different ways depending on your moment to moment needs. Each greenhouse ships with one three piece bench set.

Removable window and an included mesh screen panel that lets you maintain optimum ventilation while keeping pests out

A hand free automatic roof vent opener that responds directly to internal temperature changes that lets you concentrate on important garden tasks

Easy assembly with our unique bolt and wing nut fastening system that requires no carpentry skills

For added convenience we also suggest ordering the following optional upgrades: extra slotted bench sets available in two widths, hanging plants supports, extra screened window panels or an alternate set of tempered safety glass side window panels.

Save even more time and begin your renovations faster by ordering our painting or staining service so that your new Rail Panels coordinate with your home and garden right out of the box. We will professionally apply one of our luxurious Behr® stains or Glidden® paints to your specifications at our facility.

Please read about care and maintenance by clicking here.

Modle 8' x 6' 8' x 8' 8' x10' 8' x 12'
Interior Space 408 Sq Ft 544 Sq Ft 680 Sq Ft 799 Sq Ft

$1,299.99

8' x 6' Expandable Greenhouse with Tempered Safety Glass Option

$1,799.99

8' x 10' Polycarbonate Expandable Greenhouse

Titlting Roof Vents

Removable Mesh Screen Panel Keeps Pests Out and Air Flowing

Choose the Side Windows that Fit Your Needs & Budget: Polycarbonate or Clear Tempered Safety Glass

Our new toll free phone number will be active soon. Our valued customers can call our toll number 1-360-366-5047, or use our contact form in the interim. We will be happy to answer product questions, place orders, or custom options.

Place Orders Here

6 mm Polycarbonate Roof Panels Prices do not included shipping
4 mm Polycarbonate Side Panels
$1,259.99 Expandable 8'x6'

6 mm Polycarbonate Roof Panels Prices do not included shipping
Safety Glass Side Panels
$1,299.99 Expandable 8'x6'


6 mm Polycarbonate Roof Panels Prices do not included shipping
4 mm Polycarbonate Side Panels
$1,499.99 Expandable 8'x8'

6 mm Polycarbonate Roof Panels Prices do not included shipping
Safety Glass Side Panels
$1,349.99 Expandable 8'x8'


6 mm Polycarbonate Roof Panels Prices do not included shipping
4 mm Polycarbonate Side Panels
$1,799.99 Expandable 8'x10'

6 mm Polycarbonate Roof Panels Prices do not included shipping
Safety Glass Side Panels
$1,459.99 Expandable 8'x10'


6 mm Polycarbonate Roof Panels Prices do not included shipping
4 mm Polycarbonate Side Panels
$1,999.99 Expandable 8'x12'

6 mm Polycarbonate Roof Panels Prices do not included shipping
Safety Glass Side Panels
$1,799.99 Expandable 8'x12'

Greenhouse Accessories

Auto Vent Opener Prices do not included shipping
$40.99


Polycarbonate Vent Panel Prices do not included shipping
$34.99

Glass Vent Panel Prices do not included shipping
$34.99


Extra Set of Sliding Doors
4 mm Polycarbonate Prices do not included shipping
$138.99

Extra Set of Sliding Doors Prices do not included shipping
Tempered Safety Glass
$124.99


16" Wide Three Piece Bench Set Prices do not included shipping
$67.99 For Expandable 8'x6'

16" Wide Three Piece Bench Set Prices do not included shipping
$77.99 For Expandable 8'x8'

16" Wide Three Piece Bench Set Prices do not included shipping
$97.99 For Expandable 8'x10'

16" Wide Three Piece Bench Set Prices do not included shipping
$112.99 For Expandable 8'x12'

21 ¾" Wide Three Piece Bench Set Prices do not included shipping
$74.99 For Expandable 8'x6'

21 ¾" Wide Three Piece Bench Set Prices do not included shipping
$84.99 For Expandable 8'x8'

21 ¾" Wide Three Piece Bench Set Prices do not included shipping
$104.99 For Expandable 8'x10'

21 ¾" Wide Three Piece Bench Set Prices do not included shipping
$119.99 For Expandable 8'x12'


Custom Paint* For Expandable 8'x6'
Primary Color:
Trim Color: $229.99

Custom Paint* For Expandable 8'x8'
Primary Color:
Trim Color: $269.99

Custom Paint* For Expandable 8'x10'
Primary Color:
Trim Color: $309.99

Custom Paint* For Expandable 8'x12'
Primary Color:
Trim Color: $349.99
*Please specify paint by the Glidden Catalog Number when ordering. To obtain the number visit the Glidden website, select the "Color Selector" tab and type the name and/or number of the color(s) desired (Example MOONSCAPE 61YY 89/135). All custom painting includes one single coat of primer and one coat of exterior latex paint.


Custom Stain* For Expandable 8'x6'
Stain Style: $269.99

Custom Stain* For Expandable 8'x8'
Primary Color: $299.99

Custom Stain* For Expandable 8'x10'
Primary Color: $329.99

Custom Stain* For Expandable 8'x12'
Primary Color: $359.99
*Please specify stain style from the drop down menu above. We only apply Premium Behr Weatherproofing stain on our products with its penetrating oil formula that is enhanced with silicone for added durability, water repellency, UV protection and mildwcide. Final color may have some variance due to difference in wood and pigmentation density per batch and we make no guarantee of exact matches to any published records or samples. We apply a single coat of stain only.

Untreated Wood For All Models
Our treatment creates a long lasting protective barrier that will not accept additional stains or paint. Add this free option to specify untreated wood ONLY if you wish to apply your own stain or paint.

Please allow 4-6 weeks for delivery. We will contact the primary account holder after an order has been placed to provide a separate invoice and charge representing our best possible shipping rate to their location. The $1 handling charge that initially appears on your order will be applied toward the final shipping cost. Secure online payment is provided by PayPal. Membership in the PayPal service is not required to place orders. New PayPal members are limited to total transaction not to exceed $2000 USD.
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Wild Carrot® reserves the right to change product specifications or design without notice. Contact us by phone or electronically if you have any questions.