Palram Glory 8x12 vs Rion Grand Gardener 8x12

On the day we checked, the Palram Glory 8x12 cost $4,349 at Planet Greenhouse for 95.6 sq ft, and the Rion Grand Gardener 8x12 $4,099 at Planet Greenhouse for 110.8 sq ft. That is $250 more for the Palram Glory 8x12, or $45.49 against $36.99 per square foot.

The Palram Glory 8x12 uses 10 mm twin-wall polycarbonate on the roof and all walls; the Rion Grand Gardener 8x12 4 mm twin-wall polycarbonate roof and 6 mm twin-wall polycarbonate walls (twin-wall version). Thicker twin-wall holds heat better on cold nights, which favors the Palram Glory 8x12.

For weather, the Palram Glory 8x12 lists 20 lb/ft² of snow and 60 mph; the Rion Grand Gardener 8x12 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 Palram Glory 8x12 peaks at 8'10" with 75.1 in walls; the Rion Grand Gardener 8x12 at 7'10" with 61 in walls. Doors: heavy-duty lockable door, 31.7 in wide, with threshold ramp on the Palram Glory 8x12, double doors, 47.5 in wide x 76.4 in high (Planet Greenhouse) on the Rion Grand Gardener 8x12. For ventilation, the Palram Glory 8x12 has two roof vents with automatic openers plus a side louver window, and the Rion Grand Gardener 8x12 two adjustable roof vents (Planet Greenhouse).

Palram Glory 8x12: Galvanized steel base and ground anchoring system included (Planet Greenhouse). Rion Grand Gardener 8x12: Secure it to a concrete pad or heavy timber foundation; Rion's base kit is optional ($469 at Planet Greenhouse). Warranty: 10-year limited warranty (Palram-Canopia, per the dealer and canopia.com). No term stated for the Rion Grand Gardener 8x12.