Appendix D: Greenhouse Structure Costs for Alternative Materials
Material Dimensions Location Price Price/square feet
Plywood ¾”x4’x8’ Home Depot $34.98 $1.09
R13 1.25’x32’ Home Depot $12.80 $0.30
R13 1.25’x39.2’ Home Depot $19.58 $0.39
Part Size Dimension Quantity Cost
Aluminum
Base/top 12’ 4”x3”x1/8” 33 pieces $6383.52
Studs 8’ 2”x1-1/2”x1/8” 28 pieces $1523.20
Rafters 12’ 2”x1-1/2”x1/8” 18 pieces $1496.88
Shipping $250.00
Total $9643.60
Steel
Part Size Dimension Quantity Cost
Base/top 12’ 4”x3” 33 pieces $3496.68
Studs 8’ 2”x1-1/2” 28 pieces $110.32
Rafters 12’ 2”x1-1/2” 18 pieces $760.32
Shipping $250
Total $5611.32
(Depot)