Thread: Options for Silky oak

sigidi is the closest to you.

there is no rong way to cut a log up just depends on the lenght of timber you want.

what are the measurements you put up there?

you need small end diamiter and length to work out price.

for more info have a look at my site.

George, I may be the closest on the forum (dunno???), but as you are 700+ kms away. My best suggestion is to glean as much info from the good folkes here about how/what to cut, how to stack it after cutting to look after it. Then contact Lucas (1800 LUCAS1) and find a fella in your local area - there will be someone who is much closer than me.

Unfortunately the way fuel is I'd have to charge twice as much for travel as doing the cutting

Thanks for response's

[what are the measurements you put up there?]
The diameter was taken at the center of each log

Regards George

Okay, so the logs are 3.2m and 4.1m respectively with a diamter of 300mm and 200mm at about the middle of each log?
George with giving the diameter at the middle of the log, did you measure the circumference (chuck a tape right around the outside of the log) then divide by Pi (3.14) to get the diameter? I only ask as I've often had situations where people measure the circumference and state it as diameter and as you can imagine, one number is very different to another, so now I make sure I clarify the difference, some people may get offened as they know what they are talking about, but you don't know unless you ask hey?

Thanks Sigidi yes I did a rough measure by sight across the log not around and I dont get offended and thankfull for help and didnt know about your formula which I will do.
Do I need to debark it first ?


I am considering making a bit of a project of it and learn what it takes to cut it up myself and mabe make a four poster bed with the underneath of gum, plenty of straight timber around here.
If enough Silky Oak maybe a coffee table.


George

George the easiest thing to do is measure the diameter at each end, use the average of these two. Half it, then square it, multiply by 3.14, then multiply by the length of the log. If you keep all your measurements in metres (so 300mm is .3m) this will give you an answer of cubic metres per log. Most fella's milling will charge by the cubic metre of log.

With silky it is best to cut it sooner rather than later, it gets a stain creeping in from the ends which may spoil otherwise good timber. If you drag them around the yard to a spot for milling, then expect to pay a bit for blade damage or bark tehm once you have finished dragging them. By dragging them around the bark gets sand/soil/stones stuck in it which wrecks blades.

Hope it helps - chuck up any q's you have, someone will be able to help you out

3.142 X Diameter squared X lenght = cubic meters
divided by 4


or diameter squared X 0.785 X lenght = cubic meters
regards inter

Yeah Inter's formulas work too. If you do an internet search for cylinder volume formulas, you'll come up with more than one way. I use Pi x Radius squared x length and when I do it I use both ends to give me an average radius. Some other fellas (like Carl) only use the small end to work it out.

The best thing to do is check with whoever you get in to do the slicing, how they calculate the volume and if it's reasonable with you, go for it

Sigidi, your forgetting to divide by 4, log volume is always the middle diameter which loggers measure with a diameter tape or calipers without bark. If your in the timber game you dont want to be cutting timber your not being paid for. Also as an incentive for clients to debark their logs I tell them it will cost them less if I am not measuring over the bark for a cubic quantity, they win by saving some money & I win by not cutting dirt & rocks
Regards inter

you dont have to divide by 4.

the formular is 3.14 (pie) x radious squared x length

so a log with a diamiter of 600mm and 6m long is as follows.

3.14 x (.300 squared) x 6

=3.14 x .09 x 6

=.2826 x 6

=1.695 cube

am i wrong?

my mistake by talking in diameters I missed the fact that your were dividing the diameter by two to give a radius. I think its 30 + years since I have even seen that formula used
regards inter

thats how they teach it in schools.