Below is a list of steel and fabricating clamps available at J.R. Johnson. This steel
section lists material type, gauge, and standard lengths. The clamps listed below are
the same ones we use in our benching systems, and greenhouse structures.
Our price: $3.50
The new galvanized, two-level shelving system is perfectly sized to fit inside our hobby greenhouses to help you create a well organized growing space. Free Shipping* (U.S.- lower 48 only)
Our price: $89.99