planing thin lumber

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Forum topic by mporter posted 09-15-2014 04:17 PM 1189 views 1 time favorited 7 replies Add to Favorites Watch
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253 posts in 2544 days

09-15-2014 04:17 PM

Does anyone know a safe(or moderatly safe) way to plane lumber done to say 3/16ths of an inch? I usually just use carpet tape to attach the lumber to another board and then run it through the planer. I can get the wood down to an 1/8 inch this way. The only thing is I am looking to plane may 100 24 inch long boards down to 3/16s of an inch. taping them one by one to a board will take forever. Anyone know a better way?

7 replies so far

View Richard's profile


1916 posts in 2657 days

#1 posted 09-15-2014 04:25 PM

A wide Drum sander would do it but it is a lot money for a one shot deal. Unless you could find someone with a wide sander or maybe even a local shop that would do it for you for a small fee.

View jmartel's profile


7807 posts in 2116 days

#2 posted 09-15-2014 04:31 PM

Why can’t you just send it through like normal? My planer goes down to 1/8”.

-- The quality of one's woodworking is directly related to the amount of flannel worn.

View DKV's profile


3940 posts in 2470 days

#3 posted 09-15-2014 04:41 PM

What planer do you have?

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View mporter's profile


253 posts in 2544 days

#4 posted 09-15-2014 04:55 PM

Delta 22-540. The wood starts scalloping out bad when it gets below a quarter if an inch. Like the rollers don’t feed the material as much as it should?

View Woodbridge's profile


3538 posts in 2384 days

#5 posted 09-15-2014 04:59 PM

A method I have seen in FWW (Micheal Fortune) for doing thin tapered laminations is to build a sled. There are stop at the front and back end of the sled. They distance between them is slightly less than the length of the board to be planed. You need to bow it a bit to fit it in between the two end stops. This springing keeps the board firmly in place.

-- Peter, Woodbridge, Ontario

View Dabcan's profile


255 posts in 2638 days

#6 posted 09-15-2014 05:34 PM

I just stick a piece of melamine as a base with a lip on the front so it can’t get fed through the planer. It will give you a flat surface that isn’t affected by the rollers. wax up the top and feed your boards through. I’ve planed down to below 1/8” no problem.

-- @craftcollectif ,,

View DrDirt's profile


4423 posts in 3709 days

#7 posted 09-15-2014 05:53 PM

Ditto on what Dabcan said.

I have a piece of 1/2 inch thick particle board with a white melamine layer, from a cheapo closet organizer we had.
I have a cleat on it (on the side with the shelf pin holes) so I have a really slick surface which avoids a lot of the flex at the table on my dewalt planer (and serves as a sacrificial table to get really thin. But I never went below 1/8th, planning spline stock.

Also as you feed the strips, lift up the back as you get it started (it helps keep the cutterhead from chewing up the front. and lift the stock as it comes out at the very end. This holds the piece down when only one feed roller is in contact.

May not be the best, but it is how I was taught – and haven’t found a reason to try other things. I have used the doublestick tape, but found for thin stock, the tape thickness matters (creates low spots) and is hard to get the piece off without breaking it after being fed through the rollers a few times.

-- “The two most important days in your life are the day you are born and the day you find out why.” Mark Twain

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