Tag Archives: multisheltersolutions.com

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.

Igloo Round Structures

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 We have a unique structure that we have started offering more often. It is a round dome structure, with our standard hoops around a circular ridge piece. We have taken to calling this our “Canadian Igloo” Structure. Plastic is put on in separate pieces so it’s not for the new greenhouse assembler. We have them being used for everything from seminar areas to storage, whatever you would like a unique application for!

Interior Peak View

AVAILABLE OPTIONS

  • Anchor posts which are hollow steel tubes driven into the ground under each hoop
  • Brackets come with each anchor post to attach the base board (nuts and bolts included)
  • The heavy duty, galvanized peak bracket comes with the appropriate number of factory welded stubs
  • Hoops are rectangular galvanized steel, in one piece from top to bottom
  • Cover fastener channel with stainless spring steel inserts

Covering Details

  • Igloos typically covered with a single layer of 6mil poly and have a 5-6 year expected lifespan.
  • They can also be covered in a double layer poly, 12 mil tarp or lexan polycarbonate
  • 6mil clear greenhouse plastic comes with a 4 year warranty against deterioration by the sun.
  • White plastic should not be used for plants

Structure Components & Details

  • Base Brackets with 2 lag bolts each to attach to beam, curb, wall, etc (anchoring devices not included)
  • Welded circular ridge with U channel stubs
  • Spacers between the hoops
  • Wirelock to fasten the cover is composed of an aluminum channel with stainless steel spring inserts. It is included for both sets of end hoops. Sidewall wirelock is an optional extra.

Anchoring Options

  • Choice between Base Bracket (included in pricing seen in brochure) or Anchor Posts for anchoring
  • Anchor posts are an optional extra. These hollow steel tubes are 1 ¼ “ x 36” or 1 ¾ x 40”. There is one anchor post per hoop, usually set into concrete
  • Anchor posts are not advisable for very heavy or stony ground because of shifting
  • Anchoring the foundation is critical to the long term life of the building

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

Temporary Fix for a Loose Cover

There are a number of instances where a cover will need to be installed in less than ideal conditions. This can be either be on a windy day or in the cold (-10C or worse) and the job simply can not wait.

This will almost invariably lead to a situation where the cover will need to be re-tightened on a warmer and/or calmer day. Doing this temporary fix will get you an extra month of time that you can wait until it warms up and you can do a better job retightening the loose cover.

The lifespan of a cover can very quickly be reduced if it is repeatedly flapping in the hard wind. A very effective, temporary fix to give you more time to do the job right, is to put ropes or straps over the building (as in the photos below)

A 1” or 2” wide seat belt type material is ideal but likely you will need to settle for a soft, marine grade rope instead. Using nylon rope is almost worse then using nothing because of the abrasion factor.

The idea is to put a strap or rope between pairs of hoops every 12’ to 16’ and pull as tight as you can. Use nails or eye bolts on your base as the spot for securing the ropes or straps.

If your cover is especially loose, it is best to install each of the ropes or straps snugly first. Then go back and tighten them as tight as you can. This will prevent you from pulling too much in one spot.

Please don’t hesitate to call if you have any questions about this technique. We would be happy to help clarify anything you need, to keep your building secure.

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We look forward to helping you find your Shelter Solution!

Here at Multi Shelters we can work with you to fit whatever budget you have in mind for your project and publish sample prices freely for you to compare.

We have found a balance that provides the economy so many seek, while not sacrificing any quality of the structure or customer service.

Feel free to contact us for a custom quote for what you have in mind. We can work together to reach your goals. Flexibility is what we do at Multi Shelter Solutions.

Our biggest niche still remains that we don’t bend any steel before getting an order. We are able to customize it to fit in just the right spot, or alter how it’s done for your unique request. We bring almost 45  years of experience to each and every call or email that we receive from potential and existing customers and welcome standard as well as outside the box projects.

That factor is how we’ve come up with our “igloo” structure, the airplane hangars, our “flying” greenhouse that was lifted onto an apartment building, and more! We pride ourselves on being able to help you find your best shelter solution, no matter how “out there” an application may seem. We’ve seen pretty much everything and look forward to your project ideas and challenges.

Check out our application pages to get you started and start the ideas flowing, there’s many to choose from. Thank you for your interest in Multi Shelters and we look forward to hearing from you in 2019!

Important Winter Care Articles

We have published a few articles regarding winter care and maintenance, and suggest anyone who has purchased a structure from us to review them to make sure your shelter is safe over this winter. As always, we are available for anything you are wondering or concerned about. We would be happy to help.

Winter Care & Maintenance
Winter Storm and Your Structures
Putting up Structures After Snowfall
Weather Cautions
Cold Weather Poly Install
Temporary Fix for a Loose Cover
Retightening a Loose Cover
Installing Before Winter

Winter Storm and Your Structures

Winter Storm & Your Structures

Many areas have been hit with freezing rain today and even though it has generally not been enough to warrant concern for the structures, it is a good time to recap some common things when dealing with ice on buildings.

It is important to note that the ice in itself is not an issue, even a very thick layer actually has enough strength to become self supporting. There are two potential problems though:

  • If the ice stays on the building, it usually has a rough enough texture that subsequent snow will not likely slide off. This scenario lead to major problems in previous winters when we had freezing rain, followed by a dump of snow and then we had rain. This can triple the weight on a building in very short order.
  • The other potential problem happens when you are attempting to remove the ice from the building. If the ice layer is not too significant you can gently bump the cover from the inside. ALWAYS start bumping the cover from the top. This way ice will slide over ice. Starting from the bottom creates a potential where the ice sliding down will fall back against the building and slash the cover. NEVER do all of one side and then the other. Work both sides simultaneously.

If there is the slightest doubt in your mind about the amount of weight on the building, bump the cover from the outside using something with a long handle.

If in doubt please don’t hesitate to ask.

The benefits of going to a bigger structure

What are some of the benefits of going with a bigger structure over a smaller structure?

Budget often dictates that someone needs to start small, especially when a person is just starting out as a grower with a greenhouse.
There is also the perceived notion that staying smaller means less heating cost. In itself, that is true, since heat loss is in direct proportion to surface area exposed to the outside.

As I have mentioned before, it is very important to weigh expense
against return.

A smaller air volume has less natural circulation.
Proper air circulation for plants is critical regardless of the season.
Think of a deep pond versus a shallow pond. The deep pond never has algae on the surface because of the increased movement.

Going with a taller greenhouse will automatically increase the circulation the same way.

Another point to consider with a taller greenhouse, is that there is more open space above the plants.

This open space is where moisture can go, away from the plants even before the greenhouse ventilation system does its job.

With a lower greenhouse, moisture is always in close proximity to the plants. In a taller structure, the plants will be dry much sooner.

Moist plants in a stagnant air mass are prone to disease. These plants will, as a result, produce less.

As always, be aware of the bigger picture.