We have used Portable Poly-tex Garden Mart greenhouse frames for sale for $2,500.  Estimated retail cost for these frames new is between $5,600 and $6,400. 

The frames are 21’ x 30’.

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We have two types:  one type would have roll-up sides, the other would come with sliding side panels.

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Both come with center and side display racks but would not come with plastic.  Plastic would need to be purchased separately but is available through Poly-tex.  There are several different options for the greenhouse roof, including poly (in white or clear), double-poly, and polycarbonate.  We used a 1-year white, 5-mil poly and replaced it every year. 

If you will not be taking the house down each year, a better option for you might be the 4-year, white, 6-mil poly, and use it for multiple years.  The poly will last approximately 4 years if left on year-round and approximately 6-8 years if removed and stored after each spring.  The cost of  this for the roof and end walls is about $271.50  If the house has roll-up sides, the cost of the  poly for that is about $66.65 for a 4-year, clear, 6-mil.

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Feel free to give us a call at 618-829-3000 if you have questions or for additional information.