12:16PM | 09/06/05
Member Since: 11/15/04
3 lifetime posts
Long sad story, but we had a crappy builder build a mahogony deck on our house about a year ago. It was built with no space between the boards, which have already started to buckle some. We received some money back from the builder, and will eventually resurface the deck, but have many more pressing issues now (there are other parts of the job he screwed up even more), and it may be several years before we are able to do this.

In the mean time, I'd like to protect the deck, and make it look as presentable as possible in the simplest method possible. Ideally without having to sand the entire surface. As I said, it is about a year old, and has never been treated. We'd like the surface to me a natural mahogany color, and the railings to be white.

What would people recommend for preparing and final coating both parts, and how important is sanding at this point?


09:39PM | 09/06/05
Member Since: 12/27/02
545 lifetime posts
I'm sorry to hear about your situation, nothing is more frustrating than to have a brother treat our customers shoddily and have no respect for our most valued resource.

I've worked with the brazilian mahoganies & redwoods quite a bit, but you need to treat the redwoods (which are called mahogany by most) differently they have a tendency to cup if not finished properly and in a conscientious manner. Other species of mahogany such as ipe (and I've listed a few others below) are a little less forgiving.


4” wide decking should be installed with a 3/16” space between boards, while 6” wide boards will need 1/4'” space between the boards. This space will allow for air circulation, allow room for expansion and provide for the proper spacing as boards become fully seasoned. Approximate shrinkage and/or swelling is 3/16” on 4” decking and ¼” on 6” decking.

You need to get those deck boards up and spaced before you loose that investment. You don't want to go through a winter with those installed like that.


In order to help prevent surface checking, cupping and discoloration, it is recommended all Kiln Dried Hardwood decking be finished on all four sides, prior to or immediately after installation. Especially in dry, sunny conditions, finishing should be done prior to exposure to weather. Finishing Kiln Dried Hardwood on the underside of your deck will reduce potential cupping by inhibiting moisture from absorbing into the wood.

If a natural silver color is desired, finishing can be done with a water seal product such as Seasonite from Flood. Apply as soon as possible during or after installation of the deck. For best results, apply the treatment according to the manufacturer’s directions.

To maintain the reddish-brown color, a high quality penetrating oil finish with UV inhibitors should be used. Two coats should be applied during installation. Reapply as necessary to maintain desired look.

The natural density and alkaline content of Kiln Dried Hardwoods can cause a reaction with certain finishes affecting their drying and adhesion. A color change may occur. A test on some sample pieces is suggested to insure desired results. Kiln Dried Hardwood decking can also be pressure washed, but you must be careful not to damage the surface fibers by setting the pressure too high. Pressure washing may be necessary between oil treatments in order to remove surface discoloration.

The fir railing should have a solid stain. The railing cap should be either the Mahogany (brazilian redwood, ipe, Cumaru, Tigerwood, Cambara, Massaranduba, Angelim Pedra, Angelim, Angelim do Para, Angelim dos amarelos, Angelim pedra, Caramate, Ere joeroe, Erejoeroe, Lialiadon koleroe, Lialiandan koleroe, Para angelim, Para-angelim, Saandoe, Sapupira amarell, Sapupira amarella, St. Martin jaune) or a composite. They really take a beating.

Have a professional look at the fasteners on the decking and at the pressure treated framing as well.

Alter Eagle Construction & Design | Construction & Design | | Decks, California outdoor living | | Molding and finishing | | Crown tutorial



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

A simple banquette piled with pillows and lit from above with a wall sconce is a tempting spot to curl up with a favorite ... 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