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-   -   Building A Deck (http://www.diychatroom.com/f19/building-deck-73467/)

Simple 06-12-2010 01:09 AM

Building A Deck
 
Hi, I am replacing a ground level deck. I'm using red cedar and pressure treated wood as joist. My questions are: do I need to apply preservatives on the joists if they are pressure treated? The joist will be pretty close to the earth with a plastic barrier in between. Do I need to stain the lumber before I start the construction so all four sides of the wood is stained? I will be using a semi-transparent stain. Lastly, do I need to stain the ends of the wood after I make a cut? I will post a few pictures tomorrow.

Thanks.

jlhaslip 06-12-2010 10:20 AM

All the things you discuss will make for a better job.

Wildie 06-12-2010 01:02 PM

Quote:

Originally Posted by Simple (Post 454973)
Hi, I am replacing a ground level deck. I'm using red cedar and pressure treated wood as joist. My questions are: do I need to apply preservatives on the joists if they are pressure treated? The joist will be pretty close to the earth with a plastic barrier in between. Do I need to stain the lumber before I start the construction so all four sides of the wood is stained? I will be using a semi-transparent stain. Lastly, do I need to stain the ends of the wood after I make a cut? I will post a few pictures tomorrow.

Thanks.

All cuts on the ends of PT lumber need to be painted with wood preservative.
I had some 4X4 PT lumber buried as a foundation for some house brick edging. It was buried there for 15 years.
Had a change of plans, so dug the whole lot up.
I found that 95% of the lumber was in such good shape that I was able to reuse it for deck posts.

Gary in WA 06-12-2010 02:35 PM

Yes and yes: http://www.anthonyforest.com/pdfs/AW...mendations.pdf

http://www.thompsonswaterseal.com/advice/faq.cfm

Be safe, Gary

Simple 06-13-2010 12:21 AM

Thanks guys for all the feedbacks.
Here are some pictures. Any tips on how to create a proper drain? There was quite a few rotted slats in my previous deck, due to poor water circulation.

http://img218.imageshack.us/img218/2320/cimg2316.jpg

http://img811.imageshack.us/img811/8480/cimg2315.jpg

Scuba_Dave 06-13-2010 08:26 AM

Is that plastic underneath or just weed block ?
IE will water sit there or soak thru ?
The ground should be sloped away from the house
And ideally you want some air to be able to get under the deck to help dry things out

Simple 06-13-2010 12:15 PM

Quote:

Originally Posted by Scuba_Dave (Post 455505)
Is that plastic underneath or just weed block ?
IE will water sit there or soak thru ?
The ground should be sloped away from the house
And ideally you want some air to be able to get under the deck to help dry things out

It is plastic underneath, however the joists do only touches the ground on the sides. The water can flow through in the center which slopes away from the house.

Should I rip out the plastics and replace with weed block? Also, how do I get air in? Will the gap between the slats be good enough?

Scuba_Dave 06-13-2010 12:28 PM

I would probably poke holes in the plastic to allow water to drain
I'd day sitting water is the main reason the wood rots out
I have one deck that is out back that I raised up on cement block to get it off the ground by ~1.5"
Looks like you have cement patio that borders this
So may not be practical to raise the decking

Is that a hot tub to the side ?

Simple 06-13-2010 12:44 PM

Quote:

Originally Posted by Scuba_Dave (Post 455611)
I would probably poke holes in the plastic to allow water to drain
I'd day sitting water is the main reason the wood rots out
I have one deck that is out back that I raised up on cement block to get it off the ground by ~1.5"
Looks like you have cement patio that borders this
So may not be practical to raise the decking

Is that a hot tub to the side ?

Wow, good eyes. Yes there is a hot tub to the side.

I can't really raise the cement block because of the patio but there is a little gap between the joist and the ground. Should I just dig a little deeper to create space instead of raising the deck?

Many thanks.

Scuba_Dave 06-13-2010 12:56 PM

Is there an easy way to get into the tub ?
I just built a small deck around 2 sides of my tub w/some stairs
If you built one long step near the tub that would give air/water a chance to circulate
Side of the step could have small piece of lattice or screening

So deck.....then 7.5" high step x length of hot tub

Simple 06-13-2010 01:12 PM

That's a great idea, but I have deck all around my tub and part of my pool. If I raise that one part, the other parts will look weird. I will take some pictures of the whole backyard later today so you can get a better idea.

Thanks again.

Simple 06-14-2010 02:02 PM

Here they are:
http://img9.imageshack.us/img9/8217/cimg2317.jpg
http://img532.imageshack.us/img532/5702/cimg2318r.jpg

I don't think I can raise the level of the deck.

Scuba_Dave 06-14-2010 02:24 PM

You are not raising the entire deck
Just building a 7.5" tall by 12" wide x length of hot tub step up against the side of the hot tub

Simple 06-14-2010 02:27 PM

Ohh, I see what you are saying. Great idea, thanks.

Scuba_Dave 06-14-2010 02:38 PM

Looking at the big pic it looks like the tub is in the gazebo ?
And all of your decking is at ground level
So the step will allow the decking near the hot tub to dry out more
But won't do anything for the rest of the deck area

Or is the hot tub area built into the pool ?


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