WOODWORKING QUIZ for 27 June 04

[Ralph Jones]

Good Evening Friends,
How many 8 x 8 x 16 concrete block are required to lay a 100 square feet of wall surface?

Note; The mortar used must also be figured in this quiz.

Respectfully, :)

[Robert WA]

112.5, not allowing for the mortar joints.
101.5, allowing for 1/2" mortar joints.

[Kev Y.]

if the EX wife or her mother are to be hidden behind the wall use TWICE AS MANY AS REQUIRED!!!!!!

:rolleyes:

[journeyman Mick]

Buggered if I know! Over here we have metric blocks, which are 390 long, 190 high and either 90, 140 or 190 deep. Lay them on a 10mm (3/8") mortar bed with the same size perps and you get a face which is 400 x 200. Five courses high will give you a metre and five blocks end to end will give you two metres. 12 1/2 blocks to the square metre. These blocks are slightly smaller than the old imperial blocks and nowadays they are made a bit thinner and lighter also. This is one case where no one is complaining about getting less! :D They're still bloody heavy though, glad I'm not laying blocks for a living.

Mick (the weakling)

[Ralph Jones]

Good Evening Friends,
Mick, I know that the block are made in the metric units down there and you mortar joints are the same as those up here but, Robert W. gave me a conversion calculator link that helped me in determining the following;

Based on block having an exposed face of 7 5/8" x 15 5/8" with a mortar joint of 3/8" you would need 112.5 concrete block and 2.5 cu ft of mortar to lay a 100 square foot wall.

Thank you all for your support.

Respectfully, :)