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Construction

scott_o_reilly · 2011-04-04 13:01:43

Hi all, Im building a cavity shed. Im unsure how many blocks i need. The shed will be 10f x 8f and 9f in hight.. can some one tell me how many 9inch cavity blocks i need??

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04-04-2011 2:01pm

#1

scott_o_reilly

Registered Users Posts: 7 ✭

Join Date: April 2011

Posts: 5

Hi all,

Im building a cavity shed. Im unsure how many blocks i need. The shed will be 10f x 8f and 9f in hight.. can some one tell me how many 9inch cavity blocks i need??

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#2 05-04-2011 2:12pm
Upstream

Registered Users Posts: 285 ✭✭

Join Date: July 2010

Posts: 261

Hi Scott,

Welcome to boards:)

Not counting windows and doors, the shed will have a total wall area as follows:
Two side walls, 10 ft long by 9 ft high: 2 x 10 x 9 = 180 square feet
Two end walls, 8ft ft long by 9ft high: 2 x 8 x 9 = 144 square feet
324 square feet in total

For one cavity block roughly 9 inches tall by 18 inches long,
the total area filled is 0.75 feet x 1.5 feet = 1.125 square feet

324 divided by 1.125 = 288
So you'll need roughly 288 blocks, less whatever area that will be filled by windows and doors.

You might find some more help in the Construction & Planning section here
http://www.boards.ie/vbulletin/forumdisplay.php?f=876

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#3 06-04-2011 12:54am
scott_o_reilly

Registered Users Posts: 7 ✭

Join Date: April 2011

Posts: 5

thanks very much, the breakdown was handy when i seen you working it out. cheers

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