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Greenhouse Building Supplies

Find everything you need for your farm to thrive — from the best greenhouse frames to essential components like high-quality plastics, aluminum channels, and complete ventilation systems. Based in Connecticut, we ensure quick delivery nationwide through our extensive vendor network.

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Fast shipping and easy delivery
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The best customer support in the business

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  • Single wirelock base for wiggle wire

    Single Wirelock Base

    This greenhouse plastic fastener system works with shade cloth, insect and bird netting, etc. ZigZag / Wiggle wires lock the material in the WireLock channel. (ZigZag wire wire sold separately). Can be used to splice poly. Can be formed to the top of...

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  • Poly Patch Tape

    Poly Patch Tape

    A rugged patching tape that is perfect for mending greenhouse rips and tears. Clear, polyethylene tape with a medium tack acrylic-based adhesive with a white poly coated release liner.

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  • High quality aluminum greenhouse and high tunnel vent.

    Aluminum Shutter Vent

    Whether you are looking to retrofit an existing greenhouse or build a new high tunnel from the ground up, these aluminum shutter vents will provide much needed ventilation for you crops. They can be manually opened and closed or set up with either and...

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  • Zig Zag wire, wiggle wire

    Wiggle Wire / ZigZag Wire (bundle of 50)

    For use with aluminum extrusion wirelock poly fasteners. Our ZigZag wire is made from .085” diameter, heavy duty, stainless steel spring wire, double- tempered to allow for a better return to original shape.   Compatible with our other...

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  • Motorized shutter kit

    Motorized Shutter Kit

    Our high quality motorized shutter kit is great to control your greenhouse or high tunnel.  Made with the highest quality components it can be line wired with either 115/230V thermostats (sold seperately).   Complete kit includes Motor...

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  • Circulation Fans (J&D Manufacturing)

    Circulation Fans (J&D Manufacturing)

    WILL DROP SHIP DIRECT TO YOU PLEASE CALL 860-341-8707 TO GET A SHIPPING QUOTE OR TO PLACE AN ORDER. Comes with a 10’ cord, pre-wired for 115 volts, single phase. Totally enclosed, maintenance-free, direct drive high-efficiency motors have...

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  • L. B. White ThermaGrow 120 Greenhouse heater

    Therma Grow 120,000 BTU Greenhouse Heater

    L.B. White Therma Grow heaters are advanced, clean-burning, direct fired models that offer 20% better fuel efficiency than traditional heaters. Whether comparing thermal conversion or seasonal (year-round) efficiency, the Therma Grow outperforms even the...

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  • L. B. White ThermaGrow 220 Plus

    Therma Grow 220,000 BTU Greenhouse Heater

    L.B. White Therma Grow heaters are advanced, clean-burning, direct fired models that offer 20% better fuel efficiency than traditional heaters. Whether comparing thermal conversion or seasonal (year-round) efficiency, the Therma GrowTM outperforms even...

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  • Single h extrusion for 8mm twin wall polycarbonate

    Single H Aluminum Extrusion

    For 8 MM Polycarbonate sheeting, used to hold down edge or cover end.  This extrusion is made in the USA and designed by a leading greenhouse manufacturing company.  We can get this item in many lengths not listed here on the website. ...

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  • Double H extrusion for 8mm twin wall polycarbonate

    Double H Aluminum Extrusion

    For 8 MM Polycarbonate sheeting, used to join two pieces vertically. Cuts easily with either a hack saw, circular saw, band saw or sawzall. Will accomodate a very slight bend but not too much.  See our base and cap for curved roofs.   Secure...

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  • 12" Hessaire circulation fan

    Circulation Fan (Hessaire)

    WILL DROP SHIP DIRECT TO YOU PLEASE CALL 860-341-8707 TO GET A SHIPPING QUOTE OR TO PLACE AN ORDER.  This 12” Hessaire circulation fan features industrial grade aluminum blades. Guards are powder coated. Bracket included. Single phase, 115V, 1...

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  • Slantwall Exhaust Fan

    Slantwall Exhaust Fan

    J&D Manufacturing 30" Slantwall Fans feature a galvanized box and direct drive motor. The 36" and 50" fans  are belt drive with a wire mesh guard. 

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WHY CT GREENHOUSE?

We’re farmers too — which means we understand what goes into selecting, building, and maintaining a high tunnel. Our team is always on call to help you with advice every step of the way.

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Intuitive design makes for fast assembly

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Fast shipping and easy delivery

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High-quality products from an NRCS-approved vendor

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