rough cut lumber

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Blog entry by bobbo1963 posted 07-10-2009 01:54 AM 840 reads 0 times favorited 7 comments Add to Favorites Watch

I am building a cradle for a friend from rough walnut. I would like to know if thier is a general rule for the amount of I need. Is it 10, 20 or 50% extra for waste or is does it very to much from lot to lot? Is thier a way of telling how much colour in it before milling.

7 comments so far

View cabinetmaster's profile


10874 posts in 2981 days

#1 posted 07-10-2009 01:57 AM

I always try to order 20% extra. Seems to be a good figure to get all you need for a project.

-- Jerry--A man can never have enough tools or clamps

View Roper's profile


1370 posts in 3136 days

#2 posted 07-10-2009 02:28 AM

with walnut you will need at least 20 to 40 % more then you think due to knots and heart wood, unless you like the light spots.

-- Roper - Master of sawdust-

View Karson's profile


35032 posts in 3824 days

#3 posted 07-10-2009 03:49 AM

I does depend on the walnut wood. If it has sapwood and your client doesn’t want it then you need more. Knots are the same. If your supplier only has sap free wood then you are good to go. They sometimes steam it so the the sapwood turns brown, but that sometimes also kills the real color of walnut. Air dried wood has the best color.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware soon moving to Virginia †

View Occie gilliam's profile

Occie gilliam

505 posts in 2719 days

#4 posted 07-10-2009 04:36 AM

buy a little extra, I’m never happy when i must use a piece that i don’t wont to use and its nice to have it around for other things.
just a though

-- OC down in Costa Rica. come down and see me some time. I'll keep the light on for you

View Kjuly's profile


306 posts in 2709 days

#5 posted 07-10-2009 04:37 AM

For woods like Walnut I always add at least 35%. If you have the opportunity to sort through the stack and pick the best boards for a particular project, then you could go with 25% and be pretty safe. Remember the number one rule in woodworking....You can never have too much lumber or was that clamps or tools or…???


-- Keith, Charlotte, MI

View a1Jim's profile


115177 posts in 3000 days

#6 posted 07-10-2009 05:28 AM

It will usually depend on what grade of material you use.

-- Custom furniture

View Todd A. Clippinger's profile

Todd A. Clippinger

8901 posts in 3523 days

#7 posted 07-10-2009 06:06 AM

20-30% “Depending”

That means depending on a number of various factors such as skill level, difficulty level of project, potential difficulty matching wood if you have to get more, overall condition of supply.

My recommendation would be to go toward the high end of the figure at 30%. This is not an outrageous number and is actually a common number among the pro’s that I know.

-- Todd A. Clippinger, Montana,

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