H Schwartz & Sons Steel Pipe

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(302) 656-0276
3605 Downing Drive, Wilmington, DE 19802


H Schwartz & Sons Brand Cold Frames / High Tunnels

Cold frames from H. Schwartz & Sons Inc of Wilmington, Delaware, are ideal for nursery and farming operations. Count on us to help you select the perfect growing shelter for your unique needs.

Our Cold Frames

H. Schwartz & Sons manufactures a line of High Tunnel / Cold Frames for commercial farming and nursery operations. Cold frame / High Tunnels are unheated structures that can extend the growing season for plants, flowers, vegetables, and fruit.  They can be used year round. Our "cold frame" model differs from our "greenhouse" model in that the hoops on our cold frame are made with a single piece of pipe (usually 21 or 24 foot long) while the greenhouse has a two piece hoops assemble. Our "cold frames" are available in standard widths of 14 & 16 foot with a center peak height of 6'6" to 8 foot. Our design is the "half moon" arch. Our houses are made from heavy Gauge galvanized steel pipe. If you require more height, don't worry. You can achieve this using our optional extra-long ground sleeves.

Included with Each House:

• 25 Hoops for 4' Spacing for 96' Long House
  (Custom Lengths Available)
• 50 Ground Sleeves

• One Center Ridge Purlin with Connectors
• 25 Crossover Clamp Purlin Connectors

Contact us to order a cold frame, which will give you the ideal growing environment season after season.