Building Supplies

5:1 Ratio crank with internal brake. Needs to be reached from the ground. Fits 1.315" roll up pipe. Not for use with roll lock. Rolls up to 96’. Requires GFAM04P Guidepipe to roll on. 

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...

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 separately).   Complete kit includes Motor...

Energy efficient yet powerful! 24VDC motors for automatic roll up sides. Rolls up to 6' x 200' curtain. Includes roller guide, adapter for 1.315” roll pipe and guidepipe hardware. Use 1.315” guidepipe. Specify Right or Left Hand motor. Right...

Comes with a 10’ cord, pre-wired for 115 volts, single phase. Totally enclosed, maintenance-free, direct drive high-efficiency motors have completely sealed ball bearings. Motors are variable speed capable (controller must be sourced separately)...

Technical Specifications Product Type Steel and polycarbonate greenhouse baseboard and sidewall bundle Primary Materials 1.5" 16-gauge square steel tubing, 4' x 14' polycarbonate sheets, and aluminum connectors Included Components Steel tubing,...

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...

Technical Specifications Product Type Greenhouse baseboard hardware kit for wooden baseboards Recommended Lumber 2" x 8" x 10' wooden baseboards Included Hardware Galvanized steel baseboard splicers, 1.9" pipe straps, structural lag screws,...

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...

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. ...

Use on gable end arch (bends to fit curved arch). Attach to top of arch with #12 x 1" Tek screws every 12". Install polycarbonate then trim to bow profile and install end bow wirelock over top to catch the edge.

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 acommodate a very slight bend but not too much.  See our base and cap for curved roofs.   Secure...

Polycarbonate vent tape is the breathable, vented tape that seals the bottom edge of twin-wall polycarbonate panels on greenhouses and high tunnels. It lets condensation drain and the panel flutes vent while keeping dust and insects out of the channels,...

Aluminum foil seal tape is the solid tape that seals the top edge of twin-wall polycarbonate panels. It caps the open flutes vapor-tight, keeping water, dust, and insects out of the channels so the panel stays clear and insulating. Each roll is 1" wide...

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.