DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Carpentry and Woodworking > can i get away with cabinet grade plywood for a project seldom exposed to weather?




Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 10-27-2011, 09:37 AM  
Philphine
don't give him tools!!!
 
Join Date: Feb 2007
Location: louisville, ky.
Posts: 120
Liked 1 Times on 1 Posts

Default can i get away with cabinet grade plywood for a project seldom exposed to weather?

one of my hobbies is fooling with bicycles. one i'm working on now is a cargo type bike that will have about a 2'x3' flatbed like area on it.

even though i'll probaly very seldom use it, let alone choose a rainy day to use it, i still want to use something that will hold up to some exposure to weather. i was thinking marine grade or treated plywood, but i came across a deal on some cabinet grade that would look nice for the build. i've been reading a little on things like voids and glues used and cabinet grade seems like it might work for me if it doesn't get exposed to wet weather very often.

think it would hold up with a coat of urethane on it? i think the most exposure it would regularly get is being kept in an unheated, but dry garage, but as stated, maybe if i use it and get caught in rain, or it's outside overnight and ends up with dew on it, i don't want to have to start over and have to buy better wood a second time.

what say ye good people? thanks.



__________________
Philphine is offline  
 
Reply With Quote Quick reply to this message
Old 10-27-2011, 01:58 PM  
nealtw
Contractor
 
Join Date: Nov 2010
Location: vancouver, b.c.
Posts: 10,219
Liked 838 Times on 749 Posts
Likes Given: 1453

Default

I think you would be better off using wood and make it look like an old pickup truck bed. Finding material at a good price might be hard.



__________________
nealtw is offline  
 
Reply With Quote Quick reply to this message
Old 10-27-2011, 06:36 PM  
joecaption
Senior Member
 
Join Date: Jan 2011
Location: Hartfield VA, VA
Posts: 1,361
Liked 38 Times on 33 Posts
Likes Given: 2

Default

It would hold up much longer if you made it out of Advantec subflooring, not as nice a finish but it's made to be able to withstand the weather when building a house.
If you do go with the cabinet grade, prime with two coats of primer, and two coats of acrilic exterier enamel paint and skip the poly. Most Poly has no UV protection.
It's easer to prime and paint one coat all the panels before you do any cutting. Then the last coat when it's built to cover any scratches.

__________________
joecaption is offline  
 
Reply With Quote Quick reply to this message
Old 11-04-2011, 06:09 PM  
KerryAll
Junior Member
 
KerryAll's Avatar
Projects
 
Join Date: Oct 2011
Posts: 8
Default

Actually, spar varathane (several brands available) has strong UV inhibitors in them.
One example is Varthane brand:

http://www.woodanswers.com/Product_Cat.asp?row_id=2∂=spec∏=84&rcddr=2

__________________

Last edited by KerryAll; 11-04-2011 at 06:10 PM. Reason: typo
KerryAll is offline  
 
Reply With Quote Quick reply to this message
Old 11-04-2011, 08:51 PM  
BridgeMan
Senior Member
 
BridgeMan's Avatar
 
Join Date: Aug 2011
Location: Cottage Grove, Oregon
Posts: 738
Liked 75 Times on 67 Posts

Default

I'd be tempted to use the cabinet-grade stuff you've got, but go the extra step and make sure to seal any exposed ends before assembling it. Once moisture gets into the laminations, it's the beginning of the end.

I built a garden cart using high-quality, cabinet grade 5/8" plywood. Even covered it with 6 mils of 2-part epoxy paint. It lasted about 8 years (of heavy use, stored outside, and moisture intrusion) before falling apart, delaminating from the edges inward. So if you take better care of yours, and keep it in a dry location, it might last considerably longer.

__________________
BridgeMan is offline  
 
Reply With Quote Quick reply to this message
Old 11-10-2011, 09:00 PM  
do-er
carpenter
 
do-er's Avatar
 
Join Date: Nov 2011
Location: Washington DC
Posts: 7
Default

Hi Philphine,
I would use one of those waterproof deck products (paints), they come also in clear if you want to keep nice look of smooth sanded cabinet grade plywood exposed More expensive ones will go really deep inside the wood (not only stay on surface) and make it last winters and rains outside. Put at least two-three coats since bare wood will drink a bit (which is good) in this case. Good luck and post the picture of that bike you're doing, who knows you might be another Orange County Custom Bikes (Choppers)

__________________
do-er is offline  
 
Reply With Quote Quick reply to this message
Old 11-18-2011, 01:51 AM  
Big_Bill
Junior Member
 
Join Date: Nov 2011
Location: Western Upstate NY, NY
Posts: 6
Default

Ok, I'll probably get called a heretic for suggesting something other than wood, but have you considered vinyl trim or composite boards?

__________________
Big_Bill is offline  
 
Reply With Quote Quick reply to this message
Old 11-18-2011, 05:31 AM  
joecaption
Senior Member
 
Join Date: Jan 2011
Location: Hartfield VA, VA
Posts: 1,361
Liked 38 Times on 33 Posts
Likes Given: 2

Default

Big Bill
Price out the cost of these items, then check the weight on each of these, come up with a materials needed list and see what you come up with, then factor in vinyl trim and composit deck boards would leak if used as a top, and will have to be supported every 16" plus vinyl trim has about zero top load strength, it's made to be installed againt a soild substrate.
A 4 X 8 sheet of 3/4" vinyl would work and should last forever if built right with stainlees steel screws, and PVC cement and some built in gussets, but it would cost about $100.00 a sheet, cabinet grade plywood is less then $30.00.

__________________
joecaption is offline  
 
Reply With Quote Quick reply to this message
Old 11-19-2011, 11:59 PM  
Big_Bill
Junior Member
 
Join Date: Nov 2011
Location: Western Upstate NY, NY
Posts: 6
Default

He wouldn't need a 4'x8' sheet- 1- 1"x6"x12' would cover the 2'x3' area mentioned for $39.98 (local Home Depot). As to load strength, how much weight are you gonna carry in a 2'x3' area on a bicycle? Just my 2 cts....FWIW



__________________
Big_Bill is offline  
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Foundation wall above grade repair MrGazoo69 Bricks, Masonry and Concrete 2 08-11-2011 10:39 PM
wet walls above grade...help! ace08 General Home Improvement Discussion 3 03-27-2011 07:25 AM
plywood sides vs. all plywood box kitchen cabinets? Christian Carpentry and Woodworking 8 03-28-2010 09:11 PM
NEW Hidden Storage Cabinet (Ideal for use as a Medicine Cabinet) Hyde325 General Home Improvement Discussion 6 10-22-2009 10:08 AM
Sealing Exposed Aggregate Cold Weather schnur07 Bricks, Masonry and Concrete 2 10-15-2008 04:23 PM