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Posted: Tue Jan 14, 2003 2:39 am
by socalscott
Very relieved to find your site, for I am a newbie. I've sub'd for a company for about 5 installations.
I'm told the work has the best detailing in the company, but I've left the nest(no profits) and curently need to figure out a 2:1 ratio, random runner pattern, ASAP. 2 squares to 1 rectangle. Stuck on number of pallets/skids to order...Grrr
Thanks and I'll be frequenting these haunts per the newbie status.
TMac, you're no less than OUTSTANDING! Awesome site and efforts.
Posted: Tue Jan 14, 2003 10:09 am
by 84-1093879891
Hi Scott,
I'm not sure what you mean by a "2:1 ratio random runner pattern" - maybe it's a term unique to your country.
For any pattern, I would need to know the block sizes involved, so that I can work out the placement. You mention squares and rectangles - is it a situation where 2 squares cover the same area as 1 rectangle?
In Europe, paving is bought by area rather than number of blocks, which makes things much easier. :)
Posted: Tue Jan 14, 2003 5:40 pm
by socalscott
It would be nice if 2 squares equaled a rectangle.
Rectangles = 140mm x 140mm
Squares = 140mm x 210
The pattern is:
SSRSRSSRSRSSRSSSRSRSSR
RSSRSRSRSSRSSRSRSSSRSS
Of course, many rows start with partial squares.
Since individual patterns incorporate a varied number of pieces and areas, I am hoping there are formuli which require the input of any given number of pavers a pattern consists of and each pavers area.
Thanks again
Posted: Tue Jan 14, 2003 6:51 pm
by 84-1093879891
Right - I'm with you now. Sort of!
With a random pattern, the ratio of squares to rectangles is variable. However, as the paver layer, you are in a position to determine that, for example, there will be twice as many squares as rectangles. So, in such a case, the way to calculate the num,ber of pavers required is....
Ratio = 2S:1R
= 2 x (140x140) : 1 x (210x140)
= 39,200 : 29,400
= 1.3:1
...in terms of ordering, divide the total area of the job by 2.3. The result is the total area of Rectangles required, and then simply multiply by 1.3 to determine the area of Squares.
F'rinstance, you have a 150m² job to be laid in the 2S:1R pattern.....
150 / 2.3 = 65.2 - so, you need 65.2 m² of Rectangles, and then 65.2 x 1.3 = 84.8m², which is the area of Squares required.
Just to check, 65.2 + 84.8 does indeed = 150 :)
Is that what you mean?
Posted: Thu Jan 16, 2003 11:25 pm
by socalscott
Thanks for the quick info. Tony