Sigma 39 (Gen III) Polycarbonate Sheets Opt for manual or automatic

Opt for manual or automatic vent windows to boost ventilation

Thickness is 10mm

high light transmittance

It can be installed on a traditional foundation using cleater angles or embedded directly into the soil with special frame endings

Sigma 39 (Gen III) Polycarbonate Sheets Opt for manual or automaticTake backyard growing further with the Sigma 39 (Gen III). Built with heavy duty materials, this greenhouse supports 3 to 4 seasons of cultivation, giving you the opportunity for multiple harvests throughout the year. Its advanced engineering and durable construction bring the performance of a commercial greenhouse into a refined backyard structure. Exact size: 118. 1 x 83. 9 x 472. 4 inches The end to end airflow, spacious size, and high 7' ( 2. 13