"Paneful"

[bobleponge]

"Cue Countdown music and annoying Carol Vorderman false laugh"

I have gained access to a lot of glass, and so I have the wonderful dream of making my own greenhouse.
The glass I have found is 18" x 24" and the size of greenhouse I would like is a 7'6" x 12" and 8' high at the base of the eaves.

The first two foot will be in brick, and the roof I already have enough glass for, from my current greenouse.

Ignoring the door, how many panes of glass do I need?
I have done the sums twice and come up with the same number. A friend has come up with a number reasonably close but a chippy friend has come up with a number far from my own.

Answers not on a postcard, but directly to this thread please.

Cheers

[zazen999]

I'll have a lookie in a minute, but are you sure your chippie friend isn't making it in wood and just calculating for a window?

[bobleponge]

Nope. I called him all the way from sunny Dharfur to explain exactly what I wanted. He understood but just think he and I are poles apart for the amount of panes I need.
I would be inclined to suggest he is right, its his job after all, but I cant work out how.

[zazen999]

What's the height of the actual walls, as it depends on the pitch of your roof?

[bobleponge]

Ok the walls will be 8' high, of which the first 2' will be in brick. Thus 6' of glass on top of a 2' brick wall.
The roof is already taken care of with the amount of glass I already have, so does not need to be factored into the equation.

[smallblueplanet]

Can't you find a similar greenhouse to buy and count the panes?

[bobleponge]

Most standard greenhouses I believe come in 2' square panes. Cos these are 18" x 24" it wouldnt work.
Plus I cant actually ever find anything on the internet unless someone gives me a direct link, cos I am a technonugget.

[zazen999]

My panes are sitting 18 inches across and 24 inches tall though. 8 panes long and 6 panes high.

48 panes for each of the 2 sides....

for front and back - 5 panes across and 6 high that's 30 in each - making 60 so 156 so far.

Depending on the pitch - if the point at the top is 3ft above the 8ft base of eaves - then another 15 or so would do the front and back [some would be halved to make the space].

171? ish?

[smallblueplanet]

Some good designs here - like the one with forcing pits!

C H Whitehouse Brick Base Greenhouses

Highgrow Planthouse - Wow!

[bobleponge]

My panes are sitting 18 inches across and 24 inches tall though. 8 panes long and 6 panes high.

48 panes for each of the 2 sides....

for front and back - 5 panes across and 6 high that's 30 in each - making 60 so 156 so far.

Depending on the pitch - if the point at the top is 3ft above the 8ft base of eaves - then another 15 or so would do the front and back [some would be halved to make the space].

171? ish?

Hmmm ok. Thats 3 totally different figures.

I reckon if I want 8ft high, 2ft is already built of brick, thats only 6ft of glass which equals 3 panes high?
If its 7'6" across thats 5 panes wide?
Thus to my simple brain 3 x 5 = 15 which is one side x 2 = 30?
Maybe I am seeing things too simply or havent explained it well enough or, and most likely, I am happy to accept that I am totally wrong but cant see how.

[zazen999]

nope - just checking you were awake.

2ft you say - yes 3 panes high not 6. Doh!

so

8x3x2 = 48
5x3x2 = 30
5x1.5 = 7.5

85.5 ish

[bobleponge]

Zazen, what is the extra 5 x 1.5 for? My answer was 78, which is what you have there, but cant see what the extra bits are for.

[shirlthegirl43]

The pointy bits up from top of walls to top of roof on the front and back ends?

[zazen999]

the triangles at the top

[smallblueplanet]

There's lots of pictures of brick built greenhouses here too - I think the amount of glass you need depends on the design you're building. Have you asked your chippy for a plan, there may be a reason for his calculation of the glass needed?

http://www.woodpecker-joinery.co.uk/bespoke.asp