Reply by The_New_Guy

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Posted on Building shelves, need advice

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7 posts in 824 days

#1 posted 04-19-2017 02:38 AM

We have had some wicked storms in DFW lately so there’s been plenty of moisture as well as the temp being up and down.

I bought FAS White Ash, Flat sawn
$3.98 per board foot at a local supplier…not a Home Depot kind of store. I think it was kiln dried.
Width ranged from 8 to 10 inch
Length ranged from 9 to 10 foot boards

I researched flat, quarter and rift sawn and learned that moisture affects flat sawn most.

I did not thickness plane evenly on both sides. I planed one side on my jointer to flatten then ran it through the thickness planer to get the other face flat. I’d say the cut was 60/40 so not exactly same on both faces.
Thank you for the lesson in thickness planing, Barry. Much appreciated.

Rich, I used the words “warped”, “cupped” and “bowed” synonymous. Sorry, I’m not very astute with the terminology. I can design and engineer projects…cutting, gluing, jointing…I get the mechanics, but I am learning I lack the deeper knowledge of the physical properties that can affect my projects. MDF shelves and plywood based cabinets are rather different than solid hardwood table tops.

So to clarify…
The boards that I glued together are flat long ways (16 to 24 inches)
They finished shelves are bowed
After watching several videos on proper glue up dos and dont’s, I am certain I applied too much pressure across the boards and for way too long.
I made it worse by leaning the boards at 60 to 75 degree angle against the wall.

PICS!! As requested.

Thank you for sharing your knowledge gents. I appreciate it.

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