Cord shrinkage upon seasoning

[Tony Croft aka hamadryad]

wood shrinks when it dries, fact, by how much is open to debate I guess.

[openspaceman]

wood shrinks when it dries, fact, by how much is open to debate I guess.

 

 

Woodguy posted realistic figures. Wood dimensions don't change much until it dries below the point where there is no free water in the pores or cells, this is about 25% mc wwb. One it falls below that the water is being removed from the cell structure where it is loosely associated with the structure. This causes shrinkage mostly in the radius, some tangentially and little in the length. If we are considering roundwood then the only significant factor is the change in radius, split logs would be affected by tangential shrinkage also.

[baz]

To sum up it seems everyone is pretty much in agreement that wood would only normally shrink 5% to 10% unless you suck it dry and destroy the cell structure.

 

If you sell by volume and who doesn't, then it doesn't matter how well seasoned the logs are beyond a 5% to 10% premium to allow for shrinkage. At a lower trailer weight for seasoned wood, the haulage costs will be reduced.

 

So, this trader looking for a 30% premium on 7 month felled is probably playing spot the sucker. At £81/t even for dry hardwood that'd be putting £40 to £45 worth of wood into a m3 bag. Add in labour, depreciation, maintenance, insurance, chains, fuel, bag, pallet, storage and a retail price of anything under £110/m3 wouldn't make sense. Unfortunately, that price wouldn't make any sense around here.

[gensetsteve]

A full arctic trailer will take about 25 tonnes of green timber @ £40 a tonne = £1000 . So even if the trailer has the same volume of wood why would you pay £1500.

 

25 tonnes of green timber takes up approx 50 cu metres of space on a lorry. 50 % is air space roughly. So 25 cubic metres of timber 25 x £40 = £1000

[mendiplogs]

A full arctic trailer will take about 25 tonnes of green timber @ £40 a tonne = £1000 . So even if the trailer has the same volume of wood why would you pay £1500.

 

25 tonnes of green timber takes up approx 50 cu metres of space on a lorry. 50 % is air space roughly. So 25 cubic metres of timber 25 x £40 = £1000

 

HI STEVE your right but what euro told it lighter mate when it been around for a year or more like ash so then they like to put the price up mate thanks jon

[gensetsteve]

HI STEVE your right but what euro told it lighter mate when it been around for a year or more like ash so then they like to put the price up mate thanks jon

 

Yes I know what you are saying as long as people realise euro are not losing out they are just charging more for the same amount of wood. You are not getting more wood because they cant get more on the lorry. A full lorry is a full lorry thye dont have roof racks

[mendiplogs]

Yes I know what you are saying as long as people realise euro are not losing out they are just charging more for the same amount of wood. You are not getting more wood because they cant get more on the lorry. A full lorry is a full lorry thye dont have roof racks

 

HI STEVE with green beech the lorry not full up mate but there up to there weight as you said but euro now sales year old beech by the SQ MT thanks jon