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Questions tagged [pressure-treated]

Wood that has been treated to resist rot and insects, and thus can be used outdoors. Use in conjunction with questions about the wood and its uses. Please include any relevant project tags as well (such as [fence] or [deck])

14
votes
2answers
3k views

Are pressure-treated posts that have been submerged for a few days ruined?

I dug holes for four 8' 4x4 posts, and had the posts positioned and plumbed vertically in the holes, but had to leave for a couple days before I could concrete them in. In the meantime, storms came ...
0
votes
2answers
47 views

Will 2x4 remain straight?

I was able to straighten a slightly warped 10-foot piece of pressure-treated wood with clamps. Will it warp again? If so, is there anything I can do so that it doesn’t warp? This 2x4 is being used ...
0
votes
1answer
41 views

Best way to make sturdy Fence post for aluminum sign?

I'm looking at putting some posts up for No-Smoking signs at a local club frequented by a couple hundred kids a weekend + their families. One guy recommended Treated lumber, but I heard it'll eat ...
2
votes
1answer
61 views

Concrete post base wood too tight

I'm using the Simpson PB66Z "Galvanized Post Base" to attach my pressure treated 6x6 to the footing. The wood seems to be slightly too large to fit such that the bottom of the post rests on the metal. ...
0
votes
3answers
61 views

Protect screws in joint and make it look nicer?

So this is what the joint looks like. It's solid, but as you can see, the screws are exposed so they'll be rusting pretty soon. Also, the joint looks horrible. It's PT wood. What can I buy to make ...
2
votes
1answer
28 views

Winterizing new wet-treated pressure treated pine deck

We’re in a townhome and replaced our small 2nd floor deck/porch with wet-treated pressure treated pine 3-4 weeks ago. We had to do it well in advance of the other units for safety reasons. There’s a ...
2
votes
2answers
97 views

I spend long time in picking lumber. What do you look for when selecting boards?

I typically spend very long time in front of the lumber aisles inspecting boards. Many times I end up not getting anything after all because I thought all boards are imperfect. I see pros spent few ...
1
vote
1answer
117 views

How to mate two pressure-treated 2x6s together?

I want to mate two 2x6s pressure-treated boards (span = 8') so that I can use them as a beam for my ground-level floating deck. Should I use a construction adhesive? Anything special given that the ...
0
votes
2answers
256 views

Prevent cupping and splitting of wet PT deck boards?

Building a deck now in hot South Carolina. I purchased #1 premium deck boards very nice appearance no knots etc.. The boards are very wet and even though I was sure to put them in the bark up ...
1
vote
0answers
42 views

Are there any health concerns around treated wood?

Last weekend I received a pallet of freshly pressure treated (still wet) green Wolmanit feather-edge cladding. I have started to apply it to various buildings. Obviously I am handling it with bare ...
1
vote
0answers
425 views

Substitute for Pressure-Treated 2x3

I'm trying to replace a few sections of rotted bottom plate in my basement. I want to use pressure-treated lumber as it will be in contact with the concrete on 2 sides (and it still occasionally gets ...
1
vote
0answers
49 views

Department store PT GC lumber

I'm using pressure treated, ground contact lumber like this one bought from Home Depot for an outdoor project in my backyard. Parts of the lumber are buried underground, and some of the buried ends ...
3
votes
2answers
961 views

Which wood fence boards will last longer, pressure-treated-lumber or non-treated lumber that has a treatment applied after the fence is built?

I just heard of the capability to build a fence with untreated lumber and to apply a disodium octaborate tetrahydrate solution after installation. The alternatives I have been considering are AWPA ...
1
vote
3answers
4k views

Should I use Pressure Treated Wood in a basement?

Home inspector once told me my basement has a slightly high moisture reading. No mold, dampness or musty smell. I am building an entertainment built-in out of lumber and MDF. Should I use pressure ...
0
votes
1answer
181 views

Should raw timber be treated for use as in-ground posts?

I've got some grape vines that I need to re-build a badly designed trellis around. Im considering using some felled timber from my back yard. The advantage is that I could use much larger, cheaper ...
0
votes
1answer
181 views

how to treat regular lumber for outdoor use

What are the solutions to stain lumber for outdoor use, except buying pressure-treated wood? What I want to do is take the old lumber, which is still in good shape, but turned gray because of the ...
2
votes
1answer
417 views

Preserve treated wood?

What should I use, if anything, to preserve these steps made of treated wood? These are on my townhome's back porch. Two of the steps are directly exposed to weather. They were filthy but cleaned up ...
1
vote
2answers
651 views

Using pressure-treated wood to make a sandbox

I'd like to build an sandbox for my toddler children. I'd like it to be inexpensive and low-maintenance (no repeated annual sealing of wood, etc.), and it seems that pressure-treated (as opposed to ...
0
votes
1answer
586 views

Should I Let my PT Fence Dry Before Installing

I'm installing 300+ LF of fence in the next month or so and am getting ready to start ordering my materials. My main question is should I dry out my PT lumber before installing, posts rails and ...
0
votes
1answer
341 views

pressure-treated ramp to storage shed [duplicate]

I am a home owner & have just replaced the sloped ramp to our storage shed with 1/2" PT 2 weeks ago. We live in the Atlanta, GA area so temps have been 90s for highs, with showers frequently. 1) ...
1
vote
2answers
88 views

Do I need to treat the ends of PT lumber?

I'm going to be building a retaining box for a gravel pad using 6x6's - 0.16 lb./cu. ft. MCA pressure treated lumber. The dimensions of the box matched up with available lengths at the lumber yard, so ...
0
votes
1answer
361 views

Can I use construction screws to pull together bowed joists?

I am building a small (14'x12') detached deck to be placed directly on the ground with some gravel under it. I am using 4x6 pressure treated boards (UC4B) for outside frame. I intend to use 6" ...
1
vote
1answer
296 views

Best way to suspend beam end from cable

I'm about to buy hardware for a treehouse project, and am wondering about the best way to attach 3/8' galvanized cables to a 4x10 PT beam. The cables need to be attached near the ends of the beam to ...
4
votes
1answer
743 views

Are railroad ties suitable for a retaining wall under tree canopy?

This video shows a sharp cliff near my house that leads down to a stream. The drop is about 20 feet. I would like to build a 4' high retaining wall right around where you see a stack of dead branches. ...
0
votes
1answer
255 views

Is a metal post base needed on a concrete pier?

I'm building a backyard storage shed that will be supported by two 4x6x16' pressure treated rails laying on concrete piers. The 6" side will be flat against the pier. At the building supply store I ...
2
votes
4answers
5k views

How to make pressure treated wood look old quickly

We are adding a porch onto our old tobacco barn and are using pressure treated lumber. We started in July to prepare for my daughter's outdoor wedding in late October. I would like for the porch wood ...
1
vote
1answer
137 views

Band board in contact with ground- how to waterproof?

We recently bought a home built in 2004. During the inspection it was noted that there is what is assumed to be pressure treated wood "band board"or a ledger board (?)at the rear of the home adjacent ...
0
votes
0answers
542 views

Type of Lumber for carport load-bearing post replacement?

So I need to replace the 5 load-bearing posts on my carport due to visible rotting. Do you recommend using the standard Southern yellow Pine Pressure treated 4x4 lumber I see in your typical big box ...
1
vote
1answer
171 views

How should pressure treated wood post foundations be protected?

I am planning on building a 3.5 by 4m garden shed/workshop, and I am thinking that I'll construct it on pressure treated wood post foundations. I have some 100x100mm pressure treated pine posts. My ...
1
vote
2answers
85 views

Replace permatreated 4x4 Hand rail post on step where concrete holding it has cracked?

I bought a home 8 months ago where the deck handrail was planted at the edge of a concrete step as a 4x4 on the bottom step. The concrete at the edge of the step has cracked, the hand rail is wobbly, ...
0
votes
2answers
161 views

New Wooden decking. To stain or not to stain [duplicate]

I had new wooden decking installed on my balcony. The guy that did the job says it doesn't need stain because the wood is already treated: http://www.diy.com/departments/premium-brown-softwood-deck-...
5
votes
3answers
3k views

What nails to use for PT wood?

I'm re-framing my first floor and using PT wood everywhere where there is a possibility of area being flooded. PT wood is your typical 2x4(s) from Home Depot MCA - micronized copper azole ...
2
votes
1answer
18k views

How deep in ground should I install 4x4 PT fence posts?

I'm installing some 4x4 Pressure Treated 8' Tall Fence Posts for a chicken run. I want to have at least 7' tall fence, and am wondering if the 1' sunken depth is adequate. I have read conflicting ...
2
votes
1answer
545 views

Is it safe to use pressure-treated wood for a workbench in my shed?

I have some leftover PT wood from building a platform for my shed. I'd like to use it to build a frame for a worktable that I can place inside that shed. It will stay dry in the shed, but the shed ...
1
vote
1answer
848 views

new railings - should I use cedar or treated pine?

I'm replacing the railings on a balcony and have a choice between using cedar or a pressure treated pine. The railings will be painted, so will end up looking the same in either case. I'm looking for ...
0
votes
0answers
368 views

How can I pressurize stain into wood?

I'm thinking about how to stain the railing on my deck. What I have is the same design as the last three pictures on this page. I'm going to take the glass out before I stain, so there is some ...
3
votes
3answers
14k views

Can furring strips be installed diretly to a cinderblock wall not in a basement?

I've tried finding a definitive answer but it's far more common for folks to have block walls in basements that need to be furred out, so the information deals primarily with that and I believe this ...
0
votes
3answers
8k views

Painting pressure treated wood and particleboard inside a shed

I just had a shed installed that will be used for storing bicycles and scuba diving gear (so sometimes it will be a little damp inside). The walls of the shed are made of smooth planed pressure ...
6
votes
5answers
32k views

What type of lag bolts should I use for a deck?

I am looking at galvanized lag bolts (for the ledger) and carriage bolts (for attaching the beam to the post) for a deck. I can't find "hot-dipped galvanized" bolts/lag screws only galvanized. Is ...
2
votes
1answer
91 views

Can uneven ACQ treatment be corrected on decorative objects?

I bought some "pineapple" post caps made of treated pine. When they arrived, I was taken aback to see, rather than an overall greenish tinge, splotches and patches of green. As my plan has been to ...
2
votes
2answers
12k views

When can I seal the picnic table I made from pressure treated lumber?

I have just built my very first picnic table (really, my very first anything). I used pressure treated lumber and galvanized hardware. I would like to seal the table before I put it outside, but I'm ...
8
votes
9answers
56k views

Should I let pressure treated lumber dry before building with it?

I bought some treated 2x4's from Lowes, and it was fairly wet and heavy. I went ahead and built a firewood rack, but screwing into it releases a lot of water. It got me thinking, is it better to let ...
3
votes
2answers
1k views

Should I use pressure-treated wood for a firewood shed?

Should I use treated wood or not? Is it preferred to use treated lumber for the studs and plywood for a firewood shed? Is there a reason not to use treated wood?
6
votes
1answer
24k views

How can I join 2x6 pressure treated wood for a shed base?

I am creating a wood frame for my Suncast Sierra shed. I already weighed the pros and cons of each option for a base and came out with a wood frame as the most economical with all factors considered. ...
10
votes
8answers
31k views

How can I build a long lasting low maintenance fence?

I'm needing to replace a blown down fence, and have been seeking advice and quotes from fencing contractors. There seem to be two conflicting schools of thought. One contractor advises that using ...
1
vote
1answer
6k views

Is wolmanized wood different that just treated wood?

The title says it all, is wolmanized wood different that just treated wood?
2
votes
1answer
2k views

How to stack and store old pressure treated fence boards

I acquired some used pressure treated 1x10 fence boards from a privacy fence teardown. Some of the boards do show some wood beetle signs where they were in contact with the ground. However, they are ...
5
votes
1answer
363 views

Should I apply termite preventative products to pressure treated wood?

There are pressure treated (4"x4") fence posts (set in concrete) nearby to a house. In that area there were previously termites (professionally treated in-ground). This is in a humid region, along the ...
9
votes
1answer
8k views

Should I powerwash and waterseal a pressure treated deck?

Is there any maintenance that I should be doing such as yearly power-washing and water-sealing for a pressure treated deck?
7
votes
2answers
3k views

Can cutting pressure treated wood harm my saw blade?

Should I take time to clean my circular saw blade after cutting pressure treated lumber? Since fasteners other than stainless steel or galvanized can corrode when used in pressure treated wood, is it ...