02:45PM | 07/14/04
Member Since: 07/13/04
1 lifetime posts
We want to repair or columns outside the front of our house.. We want to know if we can use mdf...right now they are made of pine and are painted white. Does anyone know if MDF can be used outside.


08:41AM | 07/22/04
First, this question should be posted on one of the other forum sections, this section is targeted for handicapped accessibility questions.

Second, MDF stands for Medium Density Fiberboard which is a composite of wood particles in a synthetic resin binder. The density refers to the weight per cubic foot which in this case is 40-50 lbs.

Most particle board products are not recommended for exterior use with the exception of Moisture Resistant MDF. However, caution still should be used since no particle board product is recommended for use in locations with humidity swings greater than 30% to 40%. Most outdoor locations exceed this. Also, fiberboard does not perform well when exposed to direct water which is likely at the base of a column.

You might consider using a cement board product such as "Hardie-board" which is available in 5/16" x 48" x 96" sheets. Using cement board will require a special blade for your circular saw. Special attention to fastening methods is recommended.


09:22AM | 07/22/04
Member Since: 06/23/04
164 lifetime posts
This question should be posted on one of the other forum sections such as carpentry. This section mainly concerns handicapped accessibility.

MFD stands for Medium Density Fiberboard which is a material formed from wood particles in a synthetic resin binder. Medium density refers to the weight of the material which, in this case, is 40 to 50 lbs per cubic foot. Although some particle boards are "moisture resistant" they are not recommended for exterior use especially at a column with exposure to direct rain. Particle board is not recommended in applications where the moisture levels have a variation of more than 30% which is the case in most exterior locations.

Consider using a cement board product such as "Hardie-board" which is available in 5/16" x 48" x 96" sheets. Cement board is very water resistant, tough, dimensionally stable, and holds paint well. Drawbacks are that it is harder to cut (you must buy a special circular saw blade), long/narrow strips are somewhat brittle, and it requires more care in nailing/screwing.


Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

Few projects are more fun than upcycling a vintage piece in a surprising way. Outfitted with a sink and a delicately tiled... Built on a rocky island in the Drina River, near the town of Bajina Basta, Serbia, this wooden house was cobbled together ... Large steel-framed windows flood the interior of this remodeled Michigan barn with daylight. The owners hired Northworks A... Edging formed with upside-down wine bottles is a refreshing change. Cleverly and artistically involving recycled materials... A Washington State couple called on BC&J Architects to transform their 400-square-foot boathouse into a hub for family bea... Similar to the elevated utensil concept, hanging your pots and pans from a ceiling-mounted rack keeps them nearby and easy... For windows, doors, and mirrors that could use a little definition, the Naples Etched Glass Border adds a decorative flora... The thyme growing between these stepping stones adds a heady fragrance to strolls along this lush, low-maintenance garden ... Decoupage is an easy way to add any paper design to your switch plate, whether it is wallpaper, scrapbook paper, book page... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Reluctant to throw away any of those unidentified keys in your junk drawer? Hang them from a few chains attached to a simp... A stripped-down model, sans screened porch, starts out at $79,000. Add the porch, a heated floor for the bath, and all the... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon