On 15/06/2011 19:24, Jim K wrote:
On Jun 15, 10:26 am, stuart wrote:
On 14/06/2011 23:04, Jim K wrote:

On Jun 14, 10:42 pm, John wrote:
On 14/06/2011 18:12, Bert Coules wrote:

Bob Minchin wrote:

I suggest regularised sawn carcassing for your battens.

aka "CLS" these days.

thought CLS was planed?

Jim K

CLS is a bitch to plane, and AFAIK not commercially viable. The sawn
finish they get is pretty close though

"CLS is produced from kiln dried spruce (whitewood), planed and
finished with eased edges to precise tolerances and in accordance with
British Standards to either C16 or C24 grade. The CLS materials we
stock are imported from a range of countries. The product originated
for the Canadian market, which gave it its name - "Canadian Lumber
Standard". It is now mainly produced and imported from both Canada and
Europe."

Jim K

The traditional problem with whitewood was that it dulled cutters and
tore the grain because of its stringy structure, so a "planer blade"
(essentially a very fine sawblade) was used instead. However they
achieve the finish now, it's better than you can get with a normal plane
iron IME