We are thinking of putting a wood deck in our back yard to support a
hot tub. Need some advice on types of wood and pricing contractors to
construct the deck. We live in Texas in case their are regional
Pressure treated pine, cedar, redwood and synthetics are common deck
materials. Get at least 3 bids from local deck builders in your area, and
be sure to tell them the deck needs to support a hot tub.
Yes, but not as effectively. Properly used the CCA lumber we've been
using for years shouldn't pose a risk. This is another "for the
The January issue of "Fine Homebuilding" (pg 82 et seq) has a good
survey article on the new alternatives to CCA treated lumber. Apart
from the reduced effectiveness of most of these alternatives a problem I
foresee is that there are now a plethora of grades of rot resistance to
select from. The user will now have to evaluate the planned use and
select the appropriate treated lumber. If the user couldn't properly
use CCA treated lumber how is he/she going to able to navigate this more
complex road? Further, I doubt that all lumber yards will stock all
grades in all dimensions so compromises will be made of necessity. Less
reliable structures will then be built.
I raised kids and built play structures for them using CCA lumber.
There have been no issues and their children now play on those
structures. Only support members were CCA treated, they were finished
with oil based paints, and they are maintained. Almost 40 years later
they are still in good and serviceable condition.
This is Government trying to legislate a solution to stupidity. It
doesn't work. Dangerous materials can be used safely and "safe"
materials can be used un-safely.
Steve Stone wrote:
From the Forest Products Laboratory (part of the USDA I believe):
Coatings Found to Greatly Reduce Leaching from CCA-Treated Wood--Concerns
have increased that arsenic pentoxide, chromium trioxide, or copper oxide
released from the surface of chromated copper arsenate (CCA)-treated wood
used in playground equipment and decks can harm people or the environment.
Although experts disagree on the severity of the threat posed to children or
other users of treated wood products, many consumers are seeking methods to
minimize any risk of chemical exposure. Coatings or sealers are often
recommended, but their efficacy in preventing leaching has undergone little
To address this question, researchers at the Forest Products Laboratory
(FPL) recently evaluated the ability of three common coatings to reduce
leaching from CCA-treated wood. Replicate matched specimens of treated 2 by
6 lumber were given one of the following coatings:(1) latex primer followed
by one coat of outdoor latex paint, (2) oil-based primer followed by one
coat of oil-based paint, or (3) two coats of a penetrating oil
semi-transparent deck stain. The specimens were then exposed to 30 inches of
artificial rainfall for 3 weeks. The water running off of the specimens was
collected and analyzed for preservative components.
The results were very promising. All three coatings reduced leaching of
arsenic pentoxide, chromium trioxide, and copper oxide by over 99% in
comparison to uncoated specimens. None of the water collected from specimens
coated with latex or oil-based paint contained any detectable copper,
chromium, or arsenic. In some cases, water collected from the specimens that
were coated with the penetrating oil stain did contain detectable levels,
but the highest level of arsenic detected in these samples was still well
below the EPA's drinking water standard. This study suggests that the
application of these common coatings is an excellent recommendation for
consumers who are worried about chemical exposure from CCA-treated wood.
[Source: Stan Lebow, Wood Preservation and Fire Research Work Unit, FPL)
firstname.lastname@example.org (Julie) wrote in message
If you do not have a set of drawings showing the shape and size of the
deck, what steps and railing look like, foundation design, joist
sizes, finishes and so on, you must provide the various bidders some
standard statement of what you want. This will help you know if you
are getting bids on the same thing.
registered architect / 35 years of experience
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