High Tunnels / Grower Plus Series High Tunnels

The workhorse

Grower Plus Series High Tunnels — built for real winters.

Double-inflated poly, twin-wall polycarbonate end walls, and real doors for diversified farms that push through shoulder seasons and serious weather.

A starting point, not a box — width, length, height, end walls, and hardware all configure to your operation.

NRCS-eligible Fully customizable Farmer-owned

Request a quote See full specs

Width range

14–34 ft

Length configured to your site

Frame

1.9" 13-ga

Galvanized steel, bolted connections

Covering

Double-inflated 6-mil

Inflation blower included

Pricing

Per site

Configured to your ground

Make it yours

Every build starts from your ground.

Grower, Grower Plus, and Grower Pro are options, not fixed models — each kit is configured around your crops, your weather, and your plans.

Dimensions

Width, length, and peak height sized to your field layout and equipment.

End walls & doors

Hinged or sliding — sized for tractors, carts, or foot traffic.

Ventilation & sides

Roll-up sides with a 5:1 locking gear crank; powered ventilation where the crop calls for it.

The numbers

Specs, with the lineup for context.

Your structure highlighted against its siblings. Every number here is a starting point; all four configure to your site.

Specification	Grower	Grower Plus	Grower Pro	Powerhouse
Frame tubing	1.9" 13-ga galvanized	1.9" 13-ga galvanized	1.9" 13-ga galvanized	Heavy-gauge, per config
Width range	14–34 ft	14–34 ft	14–34 ft	Purpose-built
Top covering	Single-layer poly	Double-inflated 6-mil	Double-inflated 6-mil	Double-inflated 6-mil
End walls	Steel-framed, 6-mil poly	Twin-wall polycarbonate	Twin-wall polycarbonate	Configured with you
Doors	Add-on (4'×7')	8'×7' double hinged	8'×7' double sliding	Configured with you
Best for	Season extension	Diversified farms	Year-round production	High-yield tomatoes

Download the spec sheet (PDF) Compare the full lineup

In the kit

What shows up on your truck.

Complete galvanized steel frame — bows, purlins, bracing, and ground posts, cut and drilled.
Covering & hardware — poly, wiggle wire, lock channel, and fasteners for the full structure.
Your configured options — end walls, doors, and side hardware as specced on your quote.
Build guidance — step-by-step instructions, and an owner on the phone when you need one.

Kit staged for delivery — Portland, CT

Planning to apply for EQIP cost-share?

This structure meets USDA-NRCS high tunnel specifications, and we provide the certified engineering prints your application needs. Rules vary by state — we'll point you to yours.

Find your state's guide

Litchfield County, CT

Spring greens under cover

Roll-up sides

Raising day

Common questions

Asked about this structure.

Let's configure your build.

Tell us about your operation and an owner will come back with real numbers for your site — including how EQIP cost-share might factor in.

(860) 341-8707 · info@ctgreenhouse.com