Category Archives: greenhouse information

Backyard Greenhouses

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 click here to download our backyard greenhouse brochure(please see pricing below)

This 12’W x 18’L High Profile Mini Greenhouse has a single layer of 6 mil plastic for the roof and ends.  It is used as a “season extender”.  To make it a year round structure a second layer of 6 mil plastic would be added to the roof, and an inflator fan kit would be supplied to blow air in between the layers.

This building sits on a 4” x 4” pressure treated beam (there are other environmentally friendly alternatives available as well), which is anchored into the ground.  Ventilation can be done manually  (through doors and windows or by adding roll-up sidewalls), or mechanically by adding an exhaust fan.

COLDFRAME vs. GREENHOUSE

COLD FRAME usually has a single plastic covered structure and used as a season extender
GREENHOUSE usually has a double plastic cover with air in between and sides that roll up for year round use and better heat efficiency.

AVAILABLE OPTIONS

  • Custom widths, heights & hoop spacing
  • Roof vents & forced ventilation packages
  • Various types & sizes of doors with end framing priced separately
  • 8mm polycarbonate sheeting for roof and/or ends
  • Roll up sides for natural ventilation & reduced condensation

Movable Structures

Please download our Movable Greenhouse Information or our movable brochure for printable versions of this information.
Or visit the movable application page for more details

Welded base is $11.00 per lineal ft of structure. That means if your structure is 36′ long, you would calculate 36 x $11 = $396.
Skis only are $5.80 per lineal ft of structure
Our prices exclude installation, foundation, freight & taxes unless otherwise specified. Please inquire with any concerns.

Please ensure you read the instructions and considerations  FULLY and understand all the points before considering purchasing a movable greenhouse.

The intent of this page is to point out concepts rather then discuss specifics. There are simply too many possibilities to cover them all. It is our purpose here to make sure you realize the possible consequences of some of your ideas and to point out potential pitfalls.

The idea of a moving structure allows a user, with a little creativity, to protect 2 or 3 times as much area with the same building and investment. It is a very simple concept as long as some basic guidelines are adhered to. If these guidelines are not followed, the building can easily sustain significant damage. The stress of pulling must be distributed evenly to eliminate or greatly minimize the risk of damage.

If you are moving a structure often or over longer distances, please call to discuss wheel optionsmovable skis

Click to see the photos below in a larger format with detailed descriptions

Hanley Caterpillar Greenhouses

Click here to download our hanley tunnel brochure! (please see pricing below) or more info on our Hanley Application Page

Check out our Hanley Assembly overview 

We offer these structures with 17′ wide hoops at 6′ increments, standard.
Ultimate in Low Cost, Portable Season Extending Greenhouses

A note of caution…
At 6’ rib spacing, these structures are not intended to, or capable of handling very much snow load. This tunnel can handle greater loads by simply reducing the rib spacing and/or increasing the length of the anchor pegs.

Pricing can be done as a complete package or as “required components”
(prices as dependent on quantity purchased)

5/8” rebar (48” recommended)
Base plate with clasp
Rope (1000’ spools)
25’ or 28’ wide 6mil clear plastic

Sample prices, including plastic
17×100 @4 = $2659… sections are $98.35
17×100 @ 5 = $2254… sections are $102.70
17×102 @6  = $2019… sections are $107

 Our prices exclude installation, end anchors, freight & taxes unless otherwise specified. Please inquire with any concerns.

HST & Freight are extra, prices current as of June 2018 – please call for current quote

Structure details

17’ wide with 92” centre height
1”x2”x24’ galvanized 1 piece ribs
Ribs typically spaced at 6’ apart
5/8” rebar (2 per rib) 48” long suggested
1/4” polyester rope
Base plates with clasps

Additional Notes

It is important to get the correct amount of inward lean on the anchor rods. If they are too vertical, it will be a challenge to get the rib on and if they are leaning too much they will loose some of their holding power.

Proper tension on the rope is critical to the success this type of “greenhouse” since it is the rope which is holding the plastic in place. The plastic is secured lengthwise between 2 stakes which should be a minimum of 12’ away from the last rib. By pulling and securing the cover lengthwise first, you will minimize the cover dipping between the ribs.

We now have a modified Hanley which is narrower and taller, with a two part hoop. Pricing is available upon request. Due to the substantially different wind dynamic, the modified Hanley is not suggested as your first Hanley experience.

Large Greenhouses

We have a variety of widths and lengths of greenhouse structures from which to choose.

If you’re just trying to get a head start on the garden vegetable season (and maybe extending the growing season by a couple of weeks) consider our free-standing structures which use just one layer of poly.

If your intent is to grow all year round and heat the greenhouse then you should be looking at our greenhouse packages that offer a double poly roof, inflator fan kit and roll-up sidewalls for better heat efficiency.

COLDFRAME vs. GREENHOUSE

COLD FRAME usually has a single plastic covered structure and used as a season extender
GREENHOUSE usually has a double plastic cover with air in between and sides that roll up for year round use for better heat efficiency.

AVAILABLE OPTIONS

  • Custom widths, heights & hoop spacing
  • Roof vents & forced ventilation packages
  • Various types & sizes of doors with end framing priced separately
  • 8mm polycarbonate sheeting for roof and/or ends
  • Roll up sides for natural ventilation & reduced condensation
  • Cross ties for added rigidity, hanging baskets or crop support