Laying Block

MotorMan

Could someone tell me how to estimate the amount of block I would need for a room addition. I am primarly a concrete and paver man and have a chance to bid on block. I was told there are 8 block per 10 linear feet. Is it as easy as finding your linear feet dividing by 10 to get your 10' sections multiplying by 8, then multiplying by the number of courses? That seems logical however I do not want to over buy block. ANy help is appreciated.

Tscarborough

Sq Ft of wall times 1.125 = units.

__________________
It ain't Rocket Science unless you are building rockets.

masonking02

6 courses of block is 4' in height , 3 block in lenght is 4 ' ....break your measurements down that way

MotorMan

sorry i don't follow. The plans I have call for a wall that 11'4'' high and it shows using 17 courses of block. I have used the gentleman that replied first against what I had previously done( took linear feet found out how many block it takes to go around multipky by how many courses) and the results were drastically different. HELP!

Tscarborough

Don't make it harder than it is. One block is 8x16. That equals 128 Sq Inch. A Sq foot is 144 inch. 144 divided by 128=1.125.

Ignore windows and doors (unless they are garage doors), and you have the total block needed. If you order to the exact block required by counting each one, you will be reordering more, every single time, if not multiple times.

__________________
It ain't Rocket Science unless you are building rockets.

masonking02

i would only bond through the doors and windows in order to have bond when i cross over them not for block count , but its always good to have overage .... seems like u have a half high on your last course if im correct

concretemasonry

17 courses of block? - What are you building? - You biggest concern might be the layout and the amount of steel and grout.

__________________
Dick

Engineer, designer and consultant recently active domestically and internationally on construction and design in about 35 countries.

Tscarborough

He can't figure quantites, much less shapes, coursing, grout and reinforcing. I had a couple of guys come in today and ask me how much lath and cement they would need for 1900 SqFt of stucco. I replied that they should get their contractor to calculate that, and one pointed to the other and said, "He IS the contractor!". I had no good response, so I said nothing, and they eventually went away.

__________________
It ain't Rocket Science unless you are building rockets.

masonking02

lol

stacker

take the length of your walls,divide that by 4,times that by 3,there you have how many block is in a row of block.for instances, 48 feet of wall....48 divided by 4 is 12x3 is 36. 36 block per row x 17 rows.....612 block.
17 rows of block will be 11.333333 feet high.

__________________
life is short,do your masonry naked!!
http://ok.local.yahoo.biz/knabemasonry/index.html

MotorMan

Yes that's correct, the height on the plans show 11'4". Two room additions on a already extremely huge house.

gregj

Motorman, I mean no offense but are you sure you should be doing the walls? A big wall like that could be dangerous if done wrong.