Calculation Construction Measurement

Good question and what criteria would manage the quantity?

Wouldn't the weight of the concrete filling it be a factor? And then there's making sure that the plywood doesn't absorb the moisture from the concrete.

Anyways, taking Concrete Design this semester so any info here would be appreciated.

As far as i know,its to be measured by the metric run and area units so you have to calculate all the lengths and areas of concrete you are having then you can get the quantity of plywood you will use

Hi!

The unit for plywood measurement is the area of its usage. It is expressed either in square metres or square feet, as the case may be...

hi,

its depen on type of form work,

1. suppose there is concrete slab with beam - you have to take depth of beam after deduction slan thickness.

2.battens etc to be decided as per size of beams/structure.

3. for columns - you have to consider clear length & width and minimum height 8ft (8ftX4FT standard SIZE OF BOARD available)

As per standard method of measurements, qty of ply wood or any shuttering material will be calculated as the area of formwork that came into contact with concrete. Generally it will be in Sq.M or SFt. deduction rules also follows.

Hello karfung,

I have always worked it out by the M³.

But you have to take into account the other supporting formwork apart from the contact with concrete board. It can sometimes be several times the cost of the shuttering ply.

Welcome karfung!

Have a great new year...................

Calculate the area of the basic square/rectangular shape concrete surfaces. A plywood sheet is standard 4'x8' rectangular. Also, figure in the odd shaped areas to be cut from additional sheets of plywood. So try to figure the forms in terms of large sections of rectangles in which you can cut sheets to fit. If they are wider at the narrowest distance than half a sheet, you will use one sheet per 4'. If you have a lot of odd shaped areas, well you will have to figure out how to cut each from sheets that are 4'x8', trying to minimize losses. Plywood is easy to come by, so being off by a couple of sheets is not bad, plus you have some get damaged at the work site, so you never have an exact estimate when the construction crews get going.