Portable, Lean-To & Tunnel Greenhouses
Best Small Walk-In Greenhouse Kits
Find the best small walk in greenhouse kit for your yard. Compare pop-up tunnels, polycarbonate panels and shelved kits, plus footprint and setup advice.
Choose a greenhouse, then keep it warm, cool and covered
Side-by-side picks for portable, lean-to and tunnel greenhouses, plus the plastic, panels, heaters and fans that go with them. Start with a greenhouse type or a how-to guide.
Latest guides
Portable, Lean-To & Tunnel GreenhousesHow Big Is a 10x10 Greenhouse? Layout Ideas
A 10x10 greenhouse gives you about 100 square feet. Plan paths, shelves, beds, and a potting area, then compare four walk-in models by footprint and features.
Covers, Plastic & Panels4 Mil vs 6 Mil Greenhouse Plastic: Which Lasts Longer?
Compare 4 mil vs 6 mil greenhouse plastic by thickness, coverage, frame fit and care. Choose the film that suits your greenhouse and replacement plan.
Start Here: Choosing & Setting UpBackyard Greenhouse Guide: Types, Sizes and Covers
A backyard greenhouse can extend your growing season, but the right type depends on your space, plants, weather and budget. Compare sizes, frames and covers.
Heat, Fans & TemperatureBest Greenhouse Exhaust Fans
Compare greenhouse exhaust fans by airflow, controls and size. Find options for small greenhouses, humidity control and larger growing spaces, plus setup tips.
Heat, Fans & TemperatureBest Greenhouse Heaters With a Thermostat
Compare greenhouse heaters with a thermostat by control range, heat and fan modes, and placement. Find a pick for your greenhouse and plan safe setup.
Covers, Plastic & PanelsBest Greenhouse Plastic Sheeting
Compare greenhouse plastic sheeting by size, thickness, reinforcement and light needs. Find a cover for your frame, then plan for fit, installation and care.
Portable, Lean-To & Tunnel GreenhousesBest Large Walk-In Tunnel Greenhouses
Compare large greenhouse picks by footprint, access, frame details and ventilation. Find a walk-in tunnel that fits your garden, crops and setup plans.
Portable, Lean-To & Tunnel GreenhousesBest Lean-To Greenhouses for Fences and Walls
Compare lean-to greenhouses for fences and walls by footprint, access, shelves and setup. Find a size and layout that fits your growing space.