![]() ![]() Set the doors in the doorframes and attach each one with three 3-inch butt hinges.ġ2. Build two doors out of pressure-treated 2x2s.ġ1. ![]() Screw the ends of the beams to the doorframes.ġ0. Next, cut two long 2x4 beams to span the length of the greenhouse. #Ask this old house build it install#Cut diagonal 2x4 braces and install one to each side of both doorframes.ĩ. Build two doorframes out of 2x4s, then screw one to each end of the 2x4 base.Ĩ. Attach the brackets with 1 1/4-inch screws and washers.ħ. Secure the ends of each PVC pipe to the 2x4 base with U-shaped metal pipe brackets. Repeat the previous step to install the three remaining PVC pipes.Ħ. Then bend the PVC and slip its other end onto the galvanized pipe protruding from the opposite corner.ĥ. Slip one end of the PVC pipe onto one of the galvanized pipes. Glue on the parts with PVC primer and cement.Ĥ. Onto each end of the 1-inch-diamenter PVC pipes attach a reducing coupling and short section of 1 1/4-inch PVC pipe. Bore two more holes, evenly spaced, along each long side of the 2x4 base.ģ. Use a drill and auger to bore 1 -inch-diameter holes into the ground inside each corner of the 2x4 base. Fasten together the 2x4 base with 3-inch screws.Ģ. #Ask this old house build it how to#Steps for How to Build a High-Tunnel Greenhouse:ġ. Utility knife, to cut plastic sheeting Staple gun, for attaching the plastic sheeting Small sledgehammer, for pounding in galvanized pipe Tools List for How to Build a High-Tunnel Greenhouse: 1/4-inch staples, to secure the plastic sheeting Six 3-inch butt hinges, for hanging two doors Metal pipe brackets with 1 1/4-inch screws and washers, used to secure PVC pipe to 2x4 base PVC primer and cement, for gluing together PVC pipe and fittings Galvanized pipe, to secure the PVC pipe to the ground 4-mil clear plastic sheeting, to cover the PVC frame Pressure-treated 2x2s, for framing two doors Pressure-treated 2x4s, for building end walls and base 1 1/4-inch-diameter PVC pipe and reducer coupling, to make sleeve that fits over galvanized pipe 1-inch-diameter PVC pipe, to create frame of high tunnel ![]() Shopping List for How to Build a High-Tunnel Greenhouse: (See the shopping list, tools, and steps below.) Roger Cook helps a homeowner build a simple, affordable backyard greenhouse. ![]()
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