Project/Commercial propagation greenhouse

From EcoReality

Jump to: navigation, search
This has been agreed among those involved by unanimous consent on 20101201.
Since it has been agreed, the page is locked.
Contact WikiSysop to make small corrections (spelling, grammar, etc.) or add an agenda item to re-visit this agreement at an appropriate meeting.

This has been agreed among those involved by unanimous consent on 20130102.
Since it has been agreed, the page is locked.
Contact WikiSysop to make small corrections (spelling, grammar, etc.) or add an agenda item to re-visit this agreement at an appropriate meeting.

Greenhouse from north.jpeg

Project ID: 126

Project steward

Jan Steinman

Project photos

Click on any small image for a larger view.


We need greenhouse starts, both for our own use, and for sale.


With a large greenhouse (24' x 148'), we can generate tens of thousands of dollars annually in starts, as well as supplying our own vegetable starts.

This will use solar power for temperature control, and will use our own biodiesel for winter/spring heating.


  • 2010-09-30 project begun.
  • 2011-03-12: greenhouse kit arrives from Steele Greenhouses.
  • 2011-10-20: arches raised.
  • 2012-03-25: skinned.
  • 2012-04-11: dividers complete
  • 2012-04-15: table toppers built
  • 2012-04-22: doors complete, with auto closers and stay-open hooks

Goal or deliverable

A 24' x 148' greenhouse, set up for producing transplant propagation starts.

Timeline, schedule, or end date

time-related aspects of the project, which may include intermediate deadlines, dependencies, etc


Design for greenhouse tables based upon several thousand square feet of stainless steel mesh obtained from BC Auctions and painted 2"x6" lumber from the horse fence across the frontage that we salvaged when we put up deer fencing.

generally, a numbered list of tasks, performed in order, that will together accomplish the project's goals or deliverables

  1. Obtain quote for greenhouse DONE
  2. Siting and permits DONE
  3. Construction and assembly
    1. Greenhouse:
      • layout location DONE
      • assemble and raise arches DONE
      • install purlins DONE
      • build gable ends and dividers DONE
      • skin main plastic DONE
      • skin gable ends and internal dividers DONE
      • build and install doors DONE
      • assemble roll-ups and cranks DONE
      • improved drainage DONE
      • raise floor with soil or other materials Deemed not necessary.
    2. Propagation benches:
      • Cut list for each two-layer bench:
        • top: 108"x42" pre-made panel made of rolled expanded stainless steel and 1.5" lumber.
        • pedestal columns: 2 each 2"x6", 29" long.
        • pedestal bases: 2 each 2"x6", 35.2" long, 45° at ends, alternate.
        • end braces: 4 each 2"x3", 48.8" long, 45° at ends.
          • chop 2"x6" first, then rip to yield two braces
        • centre brace: 2"x3", 64.0" long, 30° & 60° at ends, alternate.
        • centre brace: 2"x3", 62.2" long, 30° & 60° at ends, alternate.
          • Make four braces from a single 2"x6" of at least 135" long:
            1. chop end to 60°
            2. chop alternate 30° at 68.7" on long side
            3. chop final alternate 60° cut at 68.7 on long side
            4. rip both pieces to yield the 62.2" braces, the shorter of the two
            5. chop the longer of the two halves (at 30° or 60° end) at 64.0"
        • bottom tension strut: 102" x 1.5" x 1.5", ripped from 2"x6"
        • long dimension centre mesh support: 4 each ~46.5" 2"x3" Due to irregularities in short dimension supports, each must be measured and cut individually.
        • top supports: 4 each 17.5" 2"x6", ripped in half at 45°, joined to make an "L" shape.
        • 2"x3" lumber is actually 2"x6" lumber ripped in half.
  4. Finishing, wiring, irrigation, heating, etc.
    1. Heat
      1. locate and plumb biodiesel boiler for producing hot water for seedling heat.
      2. obtain PEX and valves so we can have each table on a separate heat zone.
    2. Bring semi-permanent electric power in, at least #10/3
    3. Irrigation
      1. tap into field irrigation system at the NE corner, where we luckily hit a main and thus have it located
      2. plumb 1" mainline along the long dimension

Financial budget

how much money will be needed, possibly high-low bracketed and detailed, or a complete guess (try to indicate how firm a guess it is!)

Cash outlay

$8,200 for the basic greenhouse.
$500 for DC temperature control system
$200 for two deep-cycle batteries
$200 for irrigation components
$900 permits and administration
$10,000 total budget

Class B shares

1,000 shares to Jan Steinman for 4,400 kWh (250,000 BTU) biodiesel-fired heater.
200 shares to Jan Steinman for used 40 watt solar panels
2,100 shares to Jan Steinman for 200 hours of capital labour, including planning, design, construction, and engineering
1,050 shares to others for capital labour construction
4,350 Class B Investment Shares issued

Labor budget

how many people are needed for how long, including specific people or specific skill-sets

  • 20 hours planning
  • 20 hours design
  • 170 hours construction

Time Log

next 25
next 25

Vehicle Log

next 25
next 25


by person

by activity

by vehicle

"Vehicles" with no odometer, such as tractors or stationary equipment, are in tenths of an hour, rather than kilometres.

Final accounting

Item Budget Actual Over/Under Note
Class B Shares to Jan Steinman 8465.5
Class B Shares to Carol Wagner 492
Total Class B Shares 4350 8957.5 205.9% original budget did not include tables, which was about 80% of Jan’s time
Cash Outlay $10,000.00 $13,855.67 138.6% included cost of materials for tables, excluding Class B Shares issued

Share your opinion

blog comments powered by Disqus
Personal tools
Get our newsletter!
Email Address:

entry points
help (off site)
This server and other EcoReality operations are 100% wind powered, with energy from Bullfrog Power. You can be, too!