YourGreenhouses Polycarbonate vs Outsunny 8x16

On the day we checked, the YourGreenhouses Polycarbonate cost $2,765 at YourGreenhouses for 128 sq ft, and the Outsunny 8x16 $595.99 at Aosom for 131.2 sq ft. That is $2,169.01 more for the YourGreenhouses Polycarbonate, or $21.60 against $4.54 per square foot. For the YourGreenhouses Polycarbonate: Pre-order price for the 13 ft length, delivery estimated mid-January to March; an in-stock unit at this length was listed at $3,072.21. Roof vents ($95 each) are extra. For the Outsunny 8x16: Sale price against $677.99 listed on Aosom.

The YourGreenhouses Polycarbonate uses 1/4 in (about 6 mm) double-wall polycarbonate, 99% UV blocked; the Outsunny 8x16 0.16 in (about 4 mm) polycarbonate panels, UV-protective. Thicker twin-wall holds heat better on cold nights, which favors the YourGreenhouses Polycarbonate.

For weather, the YourGreenhouses Polycarbonate lists 32 lb/ft² of snow and 65 mph; the Outsunny 8x16 no snow rating and no wind rating. A rating that isn't published scores low in our formula, because you can't plan around it.

The YourGreenhouses Polycarbonate peaks at 6'7"; the Outsunny 8x16 at 7'1" with 52.8 in walls. Doors: one front door and one back window on the YourGreenhouses Polycarbonate, sliding door, 1.6 ft wide x 5.6 ft high on the Outsunny 8x16. For ventilation, the YourGreenhouses Polycarbonate has one back window; roof air vents are an option at $95 each, and the Outsunny 8x16 two 5-level adjustable windows, 2 x 1.7 ft.

YourGreenhouses Polycarbonate: No base listed in the kit contents. Outsunny 8x16: Galvanized steel base and foot stakes included. Warranty: 10-year limited warranty on the steel frame, 5 years on the polycarbonate panels, 30-day money-back guarantee; a lifetime warranty add-on costs $260 (YourGreenhouses). No term stated for the Outsunny 8x16.