CONSTRUCT YOUR OWN
Chris and Jennifer Oswald share strategies for building a greenhouse in a timely, affordable manner.
GATHER WINDOWS. Search Craigslist, visit salvage stores, and ask friends to keep an eye out for discarded windows. Opt for woodframe windows whenever possible, as they are easiest to connect. Check wood windows for dry rot, which can cause leaking and affect longevity.
MAKE IT WATERTIGHT. Reglaze glass panes and caulk window frames on both the front and back. Cover roof seams, peaks, and edges with metal flashing and flashing caps, left.
MEASURE TWICE! With window and door sizes in mind, draw a blueprint that puzzles the elements into a sturdy structure. Employ plywood foundation panels and gables and 2×4s to round out your design.
KEEP IT SIMPLE. Use 1½-inch exterior galvanized screws to attach windows atop the framework, instead of setting them inside a frame as you would when building a regular house.
LAY A GRAVEL FLOOR. The gravel can be spread across the ground, so you don’t have to disturb tree roots. It drains easily and is easy to level, Jennifer says.