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Barn Greenhouse #11: It's Finally Done

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Blog entry by nitepagan posted 11-05-2013 10:21 AM 6596 reads 2 times favorited 8 comments Add to Favorites Watch
« Part 10: Between A Rock And A Hard Place Part 11 of Barn Greenhouse series Part 12: Addendum »

I have delayed putting the final touches on the blog, as I wanted to make sure the GH was finished before I finished the write up.

The doors, both ends of the GH are identical. This will lend itself to my plans for next years garden and ease of access for watering the plants in the greenhouse. I started looking at the cost of lumber for the doors and ended up deciding that cost was too great, so I ripped a 2×4 into 3/4 inch pieces, the pieces were 3/4” x 1 1/2” x 8’ long. I was able get 4 pieces out of each 2×4, which gave me enough wood to build the door and install a door stop. The doors swing to the outside. I used 2 1/2” hinges, 2 1/2” barrel Bolt and 3” eye hook on each door. The door was put together with Kreg Pocket Hole Screws, the Vinyl was stapled on the frame and lathes were screwed onto the door to secure the vinyl covering.

After the vinyl was stapled to the end walls, all the seems were also covered with lathes.

Now to update on the costs.

List of Materials
1 – 48 inch x 25 feet x 8 mil Clear Vinyl at $31.99 Each = $31.99
2 – 2” x 4” x 8’ ripped into 3/4” x 1 1/2×8’ lengths $3.10 = $6.20
4 – 2” x 4” x 8’ ripped into 1/4” x 1 1/2×8’ lengths $3.10 = $12.40
Door Hardware 2 sets of hinges, barrel bolts and eye hook latches = $15.00

Total cost of building the doors and applying vinyl to the end walls = $65.59

So far total material costs are up to $475.15

Prices per Lowes and/or Home Depot. Price of 2×4’s is premium quality. Prices on these screws vary a lot, I am using galvanized exterior screws rather than the more expensive polymer coated screws, which cost about twice as much as the screws I am using. Some 2×4’s and the patio blocks were items I had on hand, so my actual costs are quite a bit lower than I am showing for buying all new materials.

-- Steve, Carmel, Maine, USA (near Bangor) (Hardiness Zone 5a)



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nitepagan

93 posts in 1620 days
hardiness zone 5a

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8 comments so far

View MsDebbieP's profile

MsDebbieP

14694 posts in 3806 days
hardiness zone 5b

posted 11-05-2013 03:04 PM

you have done a fantastic job. I am sure that it is going to serve you well for many years to come!

-- - Debbie, SW Ontario Canada (USDA Hardiness Zone: 5a)

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nitepagan

93 posts in 1620 days
hardiness zone 5a

posted 11-05-2013 08:14 PM

I put together a summary page which I want to post, am considering building another one in the spring. I think this one has very limited space.

-- Steve, Carmel, Maine, USA (near Bangor) (Hardiness Zone 5a)

View MsDebbieP's profile

MsDebbieP

14694 posts in 3806 days
hardiness zone 5b

posted 11-06-2013 05:35 AM

next step will be seeing it in use to see how you like it

-- - Debbie, SW Ontario Canada (USDA Hardiness Zone: 5a)

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nitepagan

93 posts in 1620 days
hardiness zone 5a

posted 11-06-2013 07:39 AM

I will use this one for tomatoes and peppers. I am also thinking about building another. Not sure what it will be used for, maybe more tomatoes and peppers.

-- Steve, Carmel, Maine, USA (near Bangor) (Hardiness Zone 5a)

View mmh's profile

mmh

332 posts in 3334 days
hardiness zone 7a

posted 11-06-2013 05:41 PM

Nicely done! If you are using premium grade non-pressure treated pine, how are you going to preserve the wood to keep from rotting? How about elevating it off the soil on bricks or pavers?

-- A weed is a plant that is growing where it was not purposefully placed by human hands.

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nitepagan

93 posts in 1620 days
hardiness zone 5a

posted 11-06-2013 09:30 PM

Tje 2×4s are on 8×16 cement paving blocks. I looked at using cedar, pressure treated woods is not good for the plants. Cedar 8 foot 2×4 costs $7.10 and hemlock – fir 2×4 8 foot costs $2.57. I think I have estimated 38 2×4s, cedar would be $269.80 and hemlock-fir would be $97.66. Of course one could do the lower portion in cedar and the upper portion in hemlock- fir. In that case 20 2×4s in cedar would cost $140.20 versus hemlock-fir $51.40. The 2×4s are listed as hemlock -fir. Hemlock is pretty much equivalent in rot resistance to cedar, so if the cheaper 2×4s are really hemlock, one has a gift in rot resistant wood. A third alternative is to have just the bottom pieces be cedar, so now we are talking about just 5 2×4s. Another alternative I had considered was to use cedar 1×7 decking boards underneath the bottom 2×4s, those run $8.77 for an 8 foot board, 5 would be required costing $43.85. Since the GH is sitting on cement blocks, I have not done any of these choices. I will have to see what happens during the winter, how wet the wood gets, how long it takes to dry out. I could still put the cedar decking underneath the 2×4s.

-- Steve, Carmel, Maine, USA (near Bangor) (Hardiness Zone 5a)

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nitepagan

93 posts in 1620 days
hardiness zone 5a

posted 11-06-2013 09:40 PM

In the picture, you can see the red paver blocks, are they enough to protect the 2×4s. Also the elevated planter boxes are cedar. The GH is located on fairly high ground so there should be some protection from the elements. The only issue open to question is the amount of snow and how much runoff will there be. How long will the wood stay wet. Another issue that isn’t resolved yet is that the wood collects water between the vinyl and the wood. If this drys out with the sun each day, is it a still a problem. I think these are possible problems which will be defined over time.

-- Steve, Carmel, Maine, USA (near Bangor) (Hardiness Zone 5a)

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petersonmurdock

17 posts in 854 days
hardiness zone 2

posted 05-23-2016 10:47 AM

I have also greenhouse in my yard, is it possible to use arts and craft doors like this one http://caldwells.com/interior-doors/craftsman-doors?

-- http://caldwells.com/exterior-doors/

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