Woodworking & Power Tools Forum - Festool Owners Group > GENERAL DISCUSSIONS > Member Projects > Bathroom vanity doors.
Pages: [1]   Go Down
« previous next »
  Print  
Author Topic: Bathroom vanity doors.  (Read 1866 times)
0 Members and 1 Guest are viewing this topic.
lambeater

Online Online

Location: British Columbia, Canada
Member Since: Apr 2010
Posts: 381
« on: April 11, 2012, 10:13 AM »
About to start building doors for my VG fir bathroom vanity. Managed to locate a nice flat sheet of VG fir over mdf for a good price. Should I have any concerns about this for the doors, except edging and sealing up all six sides to lock out moisture? Bathroom fan is always on when moisture present and is 150cfm so I wouldn't expect any issues. Any thoughts welcome.
thx
Lambeater
Logged
Festool USA does not pre-approve the contents of this website nor endorse the application or use of any Festool product in any way other than in the manner described in the Festool Instruction Manual. To reduce the risk of serious injury and/or damage to your Festool product, always read, understand and follow all warnings and instructions in your Festool product's Instruction Manual. Although Festool strives for accuracy in the website material, the website may contain inaccuracies. Festool makes no representations about the accuracy, reliability, completeness or timeliness of the material on this website or about the results to be obtained from using the website. Festool and its affiliates cannot be responsible for improper postings or your reliance on the website's material. Your use of any material contained on this website is entirely at your own risk. The content contained on this site is provided for informational purposes only and does not constitute professional advice.

Rob-GB

Offline Offline

Location: Kent, UK.
Member Since: Nov 2009
Posts: 794
« Reply #1 on: April 11, 2012, 02:02 PM »
Hi Lambeater,  Big Grin first a question...what is VG fir?  Embarassed
That aside I am assuming its a veneered mdf board and the policy is pretty much the same for all. The panel size for the doors remain more stable the smaller they are and the better they are lipped/ edged( moisture resistant glue) then sealed with a finish that will keep moisture out. Any door greater than 1 mtr (39") high ought to have a pair and a half of hinges, this is a major rule in the workshop I work and from long experience.  Wink
Veneered boards are often used in bespoke cabinetry for humid areas,generally with few problems, there is a school of thought that recommends sealing any hinge sinkings (euro hinge style or conventional butt hinge type).
Don't forget to post the finished project Grin
Rob.
Logged
Problem? No such thing! Only a solution waiting to be found:- RJ

"A $2 guppy swims......" Deke
lambeater

Online Online

Location: British Columbia, Canada
Member Since: Apr 2010
Posts: 381
« Reply #2 on: April 12, 2012, 10:05 AM »
Quote from: Rob-GB on April 11, 2012, 02:02 PM
Hi Lambeater,  Big Grin first a question...what is VG fir?  Embarassed
That aside I am assuming its a veneered mdf board and the policy is pretty much the same for all. The panel size for the doors remain more stable the smaller they are and the better they are lipped/ edged( moisture resistant glue) then sealed with a finish that will keep moisture out. Any door greater than 1 mtr (39") high ought to have a pair and a half of hinges, this is a major rule in the workshop I work and from long experience.  Wink
Veneered boards are often used in bespoke cabinetry for humid areas,generally with few problems, there is a school of thought that recommends sealing any hinge sinkings (euro hinge style or conventional butt hinge type).
Don't forget to post the finished project Grin
Rob.

Sorry Rob VG fir is Vertical grain douglas fir. Doors are regular sized cabinet doors. Kamloops here in British columbia is very dry with low humidity.
thx
Lambeater
Logged
Kev

Online Online

Location: Australia
Member Since: Nov 2011
Posts: 2463
« Reply #3 on: April 12, 2012, 10:14 AM »
I've only every had misery where MDF and moisture can come together ... for that reason I'd never risk what you may be about to do.

It swells, it warps and it deteriorates ...

Whatever you plan to seal it with ... test sealing a piece of MDF with it and stick it in a bucket of water for a week before you consider it "good enough".
Logged
Rob-GB

Offline Offline

Location: Kent, UK.
Member Since: Nov 2009
Posts: 794
« Reply #4 on: April 12, 2012, 01:25 PM »
Quote from: Kev on April 12, 2012, 10:14 AM
I've only every had misery where MDF and moisture can come together ... for that reason I'd never risk what you may be about to do.

It swells, it warps and it deteriorates ...

Whatever you plan to seal it with ... test sealing a piece of MDF with it and stick it in a bucket of water for a week before you consider it "good enough".

The only real problems occur is when veneered mdf is routed or not edged/lipped thus leaving just the finish (varnish/oil or two pack) protecting the mdf core.
Anytime the finish gets knicked or chipped can allow ingress of moisture. Solid wood sucks moisture in more readily through end grain, not so fast with face and side,
due to the wood cells design; mdf consists of pulped wood fibres and those little suckers (pun intended) act like a sponge, especially noticeable at board edges.
If the edges of the doors are to be routed with a decorative detail then the lipping material ought to be a few (3mm+) greater than the detail.
One of the worst things, both in looks and practice, is to route a faux panel into veneered board.

Rob
Logged
Problem? No such thing! Only a solution waiting to be found:- RJ

"A $2 guppy swims......" Deke
Pages: [1]   Go Up
  Print  
« previous next »
 
Jump to: