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Re: slab door warpage


 

Hey Jason,

I have done several slab door kitchens and I grit my teeth every time.? I personally won't do it unless the client agrees to MDF core material or they sign a release.? Even MDF core can warp slightly from tension in the veneer, depending on how thick the veneers are.? I always?use terms like "MDF is less likely to warp" etc... and try to never communicate that it "will not" warp.

I did a series of tables and a large conference table for a local high end golf club a couple years ago.? I outsourced the finish to limit my liability.? They called me back a year later because the finish was peeling in places and the joints were gapping and swollen in different areas.? I was panicked.? I claimed it was a finish issue and the finish guy claimed it was a wood movement or construction issue.? The wood work?in this building was disintegrating in every place.? While there inspecting the table I happened to see a cleaning lady spraying Marvelosa cleaner on some other tables.? I took photographs.? In the end a client of mine who works for the Stickley furniture company had a friend of his in their lab look at the Marvelosa cleaner and the photos of the damage.? He determined that the damage was neither wood movement, construction, or finish related but the fact that they were spraying tile cleaner on the tables.? I told the client there was no warranty for the damage and braced for push back. They weren't happy but dropped the matter.

I am sorry you are in this predicament.??

Jarrett

On Wed, Apr 7, 2021 at 9:27 AM Patrick Kane <pwk5017@...> wrote:
Boy, this story is even better with the disclosure of the client's profession.

Im sorry?for your situation.? I am not a pro, but ive done many commissions and had a handful of mishaps out of my control. One involved a contractor picking up a 5' long end grain island from me and laying it flat on a month old concrete slab in a garage overnight. Thing cupped 3/4"+ overnight from the moisture transfer from the concrete.

I do not understand how the supplier expects the doors to reverse twist by the summer's conditions? In my experience, wood movement due to moisture imbalances and humidity changes are not exactly inverse curves of one another. If the winter conditions twisted them, summer conditions are sure to enact changes of their own, but i find it highly unlikely those changes will reverse the original twisting change. On the same hand, the summer changes could also worsen the current twist.?

Patrick

On Wed, Apr 7, 2021 at 9:58 AM Jason Holtz <jholtzy@...> wrote:
Bret,
I tried an experiment over bending a pair of doors the other direction for 5 days. It definitely helped, but not a long term solution I doubt.?

I'm right with you on designers who have no material knowledge. I got an RFP last fall for a 20' table with a solid oak herringbone?pattern top. Glued to plywood per the specs. I told them it would self destruct in a year and I'd only build it with a?signed release of liability on it.?

Did I mention the kitchen client is a lawyer?

Jason Holtz
J. Holtz Furniture

3307 Snelling Ave. South
Minneapolis, MN 55406
612 432-2765

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Jason
J. Holtz Furniture
3307 Snelling Ave. South
Minneapolis, MN 55406



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Geometric Innovations LLC
8309 NW 113th St.
Oklahoma City, OK 73162
405-816-3269

j.a.max7@...

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