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Birch or fir plywood for exterior project?

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Birch or fir plywood for exterior project?

Old 05-17-2007, 06:03 AM
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Default Birch or fir plywood for exterior project?

Attempting a "makeover" on my garage doors.Step #1 istoskin them with a bead-boardplywood (using Liquid Nails or similar). My choices in material are birch in 1/4" or fir in 3/8". Which would you suggest?

No, Trex or similar won't work. edit; I take that back, if I could adherethe materialto the wood door framewith glue it'd be great.
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Old 05-17-2007, 06:24 AM
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Default Re: Birch or fir plywood for exterior project?

Hmmmm... Just stole this from a DIY board..

"I got a response back from Trex.


Thank you for your question to Trex. I would recommend a good wood glue that can also be used on plastic, like Gorilla glue.

Again, thank you for contacting Trex. Please let me know if you need any further assistance.

Pat McCarthy
Trex Customer Service "
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Old 05-17-2007, 06:26 AM
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Default RE: Birch or fir plywood for exterior project?

Look into either Medex, which looks like MDF, but completely waterproof, or MDO, which is a plywood with a paper like veneer that is waterproof. I think the Medex would be best for what your doing.
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Old 05-17-2007, 08:14 AM
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Default Re: Birch or fir plywood for exterior project?

The birch is probably an interior only product. The fir may be a little more weather tolerant. What are the ratings on the back of the sheet?
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Old 05-17-2007, 08:17 AM
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Default Re: Birch or fir plywood for exterior project?

I use tongue and groove 1x6 cedar, trimmed out with 1x4 if desired. Liquid nails (actually a similiar product, and narrow crown staples to hold it together.

Keep in mind, if you add a lot of weight to the door, you may need a bigger spring...

To answer your question, I would think either would be fine, as long as you seal all the sides and face. Some plywoods will specifically state that they can be used in exterior applications.
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Old 05-17-2007, 08:27 AM
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Default Re: Birch or fir plywood for exterior project?

Why not just replace the garage doors?
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Old 05-17-2007, 08:41 AM
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Default Re: Birch or fir plywood for exterior project?

RI Builder - 5/17/2007 8:27 AM Why not just replace the garage doors?
Blewthis yearsbudget on brickwork... Want to buy a Softail Heritage. Mostly, because I think I can make the doors look good WITHOUT spending $10k.
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Old 05-17-2007, 11:12 AM
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Default RE: Birch or fir plywood for exterior project?

Question: What style garage door are we talking here? A full single panel door that swings up or a multi panel door with hinged joints?

Afishinado - 5/16/2007 6:03 PM
My choices in material are birch in 1/4" or fir in 3/8". Which would you suggest?
IMO, neither for a few reasons: Any 1/4" plywood that is basically not marine grade you will have to worry about your top exposed edge - delamination. You will either need to cap the top exposed edge with either a small plastic “C” channel or seal it with caulking. Secondly if I did end up using a 1/4" plywood I would go with mahogany.....it’ll stand up better.

A little while back I made a farmer a butcher shop, I lined the insides walls with 1/8" plastic sheets and it was glued to the drywall walls. I believe it also come with an embossed wood grain pattern to it. > http://www.davonsales.com/pLasticsheetsrolls.html

Next off, I have to question your reasoning for using any material thicker then 1/4".....you are only adding a face right? Or is it that you need to add structural integrity as well?

MDO or as I know it by “Kryzone” (DuraPly) would work very well, but I’ve never seen the product come in less then 1/2" thickness.......why do you need all that weight?

If you start out with a 1/2" sheet face and add some sort of fancy trim to your new face will the door have the necessary clearance at the header when you open the door?
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Old 05-17-2007, 11:37 AM
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Default RE: Birch or fir plywood for exterior project?

Garett - 5/17/2007 11:12 AM Question: What style garage door are we talking here? A full single panel door that swings up or a multi panel door with hinged joints?
Afishinado - 5/16/2007 6:03 PM My choices in material are birch in 1/4" or fir in 3/8". Which would you suggest?
IMO, neither for a few reasons: Any 1/4" plywood that is basically not marine grade you will have to worry about your top exposed edge - delamination.
After a little research, I agree, neither... It's a 4 panel overhead...

This is what I would like it to look like when I am done

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Old 05-17-2007, 01:35 PM
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Default Re: Birch or fir plywood for exterior project?

It's really not that hard to make a garage door when you get right down to it....providing you've got the space to do it, a table saw, miter saw, glue and nails.

Basically here's how I would make one:
- I'd start off with a 1/4" plywood backing - 1 1/2" smaller then the actual door size needed
* you also need to subtract the thickness of your weather strip seal that you will want to add at the bottom of your finished door (if you are adding one?)
- then add a 3/4" thick piece of wood around the outside of your plywood (only as thick as your backing and the slats) - this will act as a frame to give you a clean looking door when you are done
- then cut your tongue and grove slats as high up as you would like to have them - none of slats need to be cut to exact lengths.....all outer edges will be covered afterwards so on one will ever see them
- then add a few pieces of plywood for the top of the door the same thickness as your slats
* everything is dry fitted at this point
- glue down your slats and plywood to the face to your plywood backing
- glue your side framing to the sides of your slats and to the plywood filler panels
- then cut your 1x6" boards to trim out your door the way you would like to have it - this facing trim will cover over your 3/4" side framing
- then glued and nail your 1x6" to the face of the door to hold thing move rigidly
- then get help to flip the whole thing over and back nail everything
- then flip it back over and cut the large one piece door down into the individual panels with a straight edge and circular saw - make sure the saw has a good blade on it
- then clean up the cut edges with a file and sander
- then apply your finish
- then add your hinges and your operational hardware
- then add your weather stripping to the bottom of the bottom panel
- then hang your individual panels starting from the bottom and working upwards.
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Old 05-17-2007, 02:37 PM
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Default Re: Birch or fir plywood for exterior project?

Garett - 5/17/2007 1:35 PM It's really not that hard to make a garage door when you get right down to it....providing you've got the space to do it, a table saw, miter saw, glue and nails.
You forgot one thing... Ambition! The doors I have aren't shot, they're in good shape, I just don't like them. I have been messing with them most of the day and determined I can 'skin' them the way I was thinking... I'll keep ya up to speed.... Right now trying to determine if contact cement will hold the Trex sheet goods to wood..... Thanks...
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Old 05-17-2007, 08:32 PM
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Default Re: Birch or fir plywood for exterior project?

PL400, a few brads while it's setting and some fir (pine) or ceder.

Beadboard like wainscoating panels could get you by for a few years. It's only 5/16 thick. You may need to adjust the weather stripping if you have it. If not just hold it in a red hair on each side. Be brave with accent boards. Look at some of those 20K doors and get some ideas.

You going to have to adjust the spring tension.
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Old 05-18-2007, 12:07 AM
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Default Re: Birch or fir plywood for exterior project?

Is this in Jersey or Fla? Theres a reason you dont see much wood in fla.
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Old 05-18-2007, 04:10 AM
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Default Re: Birch or fir plywood for exterior project?

GOODNYOU - 5/18/2007 12:07 AM Is this in Jersey or Fla? Theres a reason you dont see much wood in fla.
NJ... Found sheets of 3/8" AZEK, want to find a similar product in a beadboard sheet. Theymake T&G and in the right color too, unfortuntately by the timeI'm done doing that, the doors will weigh a ton and I could buy the new doors for not much more....
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Old 05-18-2007, 11:07 AM
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Default Re: Birch or fir plywood for exterior project?

Found it.
http://www.kleerlumber.com/content/p...aded/index.jsp
1/2 x 4' x 8' 54lbs per sheet.... That I don't like...
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