Questions tagged [lumber]

For questions involving the use of lumber as a construction material.

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1answer
21 views

does “clear opening” on rafter loading tables mean horizontal projection?

I am looking at some tables of allowable roof loads for southern yellow pine: http://www.southernpine.com/app/uploads/AL_27-32L.pdf Rafters are typically at an angle to horizontal. I'm wondering if ...
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2answers
56 views

Utility Trailer Wood Floor Installation

I have a small utility trailer ta her has a corrugated metal floor. Not sturdy enough to haul my motorcycle so I want to install a wood floor using 5/4”x 6” treated lumber. My question is what is the ...
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1answer
84 views

How much weight will this structure hold? [closed]

I'm going to build this structure as is. This question is not the same as my earlier post as I am not seeking any more design advice as in the previous. I will not make any more changes to it. My ...
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4answers
134 views

How much weight can a 2 by 4 support in this configuration?

I'm using dimensional lumber ( whitewood ) from Home Depot. https://www.homedepot.com/b/Lumber-Composites-Dimensional-Lumber/N-5yc1vZc3tc It is just a 4 foot by 8 foot rectangle with a center ...
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2answers
89 views

How to transfer lumber cut with odd angles

I am interested in learning this craftsmanship /technique: Look like the piece of lumber in between has perfect cut to match the angles. How did they transfer the cut dimension? Is there a tool for ...
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1answer
65 views

Will a horizontal 2x4 support my body weight?

I want to use a framed doorway to do chinups but I'd hate to come crashing down to the floor on my tail bone. This doorway is framed but not drywalled. I realize there are a lot of factors but not ...
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1answer
30 views

How to weather protect plywood fence?

My handyman guy used the wrong lumber to make this fence gate. It just regular plywood used for subfloor: It's too late now to take it down. But it looks OK so I want to see if there is a way to ...
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4answers
87 views

Substituting lumber sizes for ground contact bridge sill and ease of handling for one person

I'm building a small bridge over a creek on my property and using some forest service plans which recommend 8x8 ground contact lumber kept in place by earth anchors for the sills that the bridge ...
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3answers
71 views

Crawlspace Post to beam lumber grade

Recently we replaced some of the rotten and cracked true size 4 in x 6 in. posts under the house in crawlspace. The old posts were resting on concrete pads 24 in. x 24 in. and supporting a true size ...
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1answer
63 views

How large a span can a 4x6 hold safely for a swing set.? [duplicate]

I have a 4x6x16 to use for the header of a swing set. I was going to span 12 ft between supports and cantilever 4 ft but I now would prefer to put the supports at each end. I would hang 4 swings over ...
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2answers
50 views

Can I use a 4x6x16 top beam for a cantilevered swing set?

I have a 4x6x16 beam that I would like to use on a new swing set. If I span 12 feet between supports, can I leave one or both ends cantilevered to support an additional swing?
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2answers
83 views

2 x 6's stacked VS 6 x 8s?

The design for a retaining wall calls for pressure treated 8 x 8 posts, 6 feet on center and 6 feet below grade, with 6 x 8 pressure treated walls 4 feet in height. The retaining walls are a 26 foot x ...
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3answers
68 views

How to move building material, including large timbers, onto my property?

I'm trying to build a small house on my rural property. I'm trying to use a building kit, which is delivered normally by a series of 18-wheelers. It includes large timbers, such as six 6x8 x 14ft ...
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1answer
74 views

Will 2x12 lumber forms support my concrete pier?

Im forming a concrete pier. I expect 20k lbs of weight every 10 ft. I have 5 2x12x16s spaced about 14in apart. How can i determine the weight tolerance. The boards are bolted at 10ft to concrete ...
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1answer
26 views

Warp resistance of joined 1x lumber

Let's say I had a choice between 1x12 for shelves and actually joining two ripped pieces of 1x8. Contrary to the initially appealing, I'm inclined to think that wider lumber tends to warp more than, ...
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0answers
64 views

Paint/sealer for wood porch columns

I need to replace a couple front porch posts/columns that are rotting, so I'm just going to replace all of them. Original posts are just 4x4's with some wood casing and trim around it. I'm going to ...
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2answers
70 views

Toe Nailing Studs to Plates

Perpendicular set studs sometimes shift during toe nailing to flat plates, top and bottom. Is there a way or a tool to clamp 2x4 perpendicular?
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1answer
44 views

What's the widest two-by size for a door frame I can use without warping becoming an issue?

In order to be able to connect the outside (brick/masonry) and inside (lumber framing) structural elements, I need to use 2x10, anything shallower won't do. However, I'm reluctant to use lumber that ...
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3answers
249 views

Can I reduce the width of a board half an inch by sanding?

I am building a bed frame. Like a fool, I thought 2 x 4 lumber was actually 2 x 4 inches. Now I have a gap that is .5 inches too wide on either side of my frame. I'm wondering if there is a good fix ...
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2answers
102 views

How to find “doorskin”? [closed]

Regarding this question: What exactly is doorskin? Mine is not a duplicate because the one above does not fully answer my question, exactly how can I find this product or something similar? I'm ...
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2answers
101 views

Adding new joists to old deck: lumber size mismatch

Very new to this forum, forgive me for any mistakes. I am replacing the decking on an existing deck at my house, and the new decking is a composite PVC cap stock product. The old decking was cedar, ...
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2answers
103 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 ...
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2answers
71 views

Which Pine to Use? [closed]

I was told pine is the way to go for portions of my project but I'm also told framing pine is not the way to go because it's not square and is not dried. Can I just go to a big box store and get pine ...
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1answer
94 views

how to identify lumber grade of unmarked ceiling joists

I have a detached garage that I'd like to finish the attic space to make into a office like workspace. The garage ceiling joists are 2x8x14' (unnotched) with a 13'6" span on 16". The joist appear to ...
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1answer
76 views

Framing a non-load bearing basement wall - are plates required to be a single piece?

Are either top or bottom plates required to be 1 continuous piece of lumber? If it's not required, what is the best way to attach the separate sections; a lapping piece over the top of the joint?
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0answers
55 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 ...
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2answers
2k views

Preventing swing set legs from sinking

I'm putting together a swing set in my backyard mostly following this Youtube video. I'd like to make sure that the legs of the A-frames don't sink into the ground over time when it rains, etc. What ...
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1answer
68 views

Are there any composite/plastic lumber brands that can be used indoor?

I need to build a platform/base in a partially finished basement that occasionally floods. The flood isn't much, about 1/2 inch, but it does stick around for a bit (at least until the dehumidifier ...
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2answers
199 views

Insects on Hem-Fir/SPF lumber?

What are these insects and should I be concerned? They're about 1/8" in length and don't look like termites or pine beetles. I don't see any insect-related damage to the wood but they seem to have a ...
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1answer
194 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 ...
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2answers
823 views

Why are my joists smaller than standard size?

I was preparing to replace a cantilevered rim joist on my house today. I bought a 2x10 treated board to replace it. I cut a piece to use as blocking and found that the board was much wider than the ...
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2answers
90 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 ...
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2answers
2k views

Lumber Split in Roof Rafter

I had a new roof replaced recently and my whole house would shake when they would throw the shingle bundles down on my roof. I went to the attic the next day and noticed something I hadn't previously....
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3answers
259 views

What type of plywood to use for a general purpose workbench? [closed]

I would like to build a workbench for my garage. Having minimal experience, I would like to try this: https://www.familyhandyman.com/workshop/workbench/how-to-build-a-workbench-super-simple-50-bench/...
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1answer
183 views

Lightweight lumber or lumber alternative for building a 6'x7' portable privacy screen?

I'm planning to build a privacy screen to be attached between two posts of the pvc railing of a composite deck. I want the attachment to be temporary so that it can be removed and stored during winter ...
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1answer
539 views

How to remove ceiling joist cross blocks without tearing up roof?

I have a building on my property where the roof is made of 12' 2x4 joists with plywood laid directly on top of it. Between the 2x4 joists there are 2x4 cross blocks positioned where the pieces of ...
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1answer
842 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. ...
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2answers
120 views

What's the right type of lumber to construct a small TV platform?

I'm buying a new TV, which will be my first flat-screen TV for the home theater. I currently have an old RPTV, and our center channel speaker rests on a stand that supports it on top of the TV. Since ...
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4answers
3k views

Can I use LVL 2x4 outdoors (pergola roof)

A few days ago, I got a letter from the HOA telling me that I have to replace the warped, twisted, sagging 2x4s forming the roof of my pergola. I have absolutely zero confidence that any PT 2x4 I buy ...
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1answer
507 views

Warp resistance of plywood vs solid SPF lumber

I need to fabricate a small wooden masking platform that will serve to reduce the gaps between radiator pipe holes in the floor and the floor itself. Basically, the gaps are more than what pleases the ...
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0answers
49 views

Drying milled lumber

I want to mill my own lumber from a forested property and mill I have access to. I understand there is a long drying process involved, and I intend to dry a large volume. What is the process for ...
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0answers
707 views

Is AC2 lumber ok to use with aluminum?

My "local" big-box home improvement store sells a pressure treated lumber called AC2. Apparently this is different from ACQ in that its environmentally friendly, but still can be safely used with ...
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0answers
613 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 ...
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1answer
788 views

Joining two composite decking boards side by side

I described my problem in this question here How to fix deck board at edge not lined up with beam? This is the outcome of that project. There ended up a bit of gap in some area like 1/8" - 3/16". It'...
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3answers
2k views

How to drill straight hole in 4x8 beam?

I need to drill a 0.5" hole for a big bolt going through 4x8 beam (used in swing). Now I only have the hand drill and no drill press tool (which could be nice). I only need to make 2 holes and they ...
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0answers
570 views

Footing for 4x8 swingset beam and playhouse

I am building a playhouse with swingset attaching to it. One side of the swingset beam (4x8x12) will be A-frame. The other side is attaching to the playhouse. I have a question about attaching to the ...
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1answer
2k views

A-Frame Bracket for 4x8 swing beam

I would like to build the A-frame swing structure. One end of the beam attaches to the playhouse. The other end is the A-frame and I plan to use 4x8x12 treated lumber as the beam since I already ...
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1answer
2k views

Beam size and material for 15 feet long swing

I need to create a 15 feet span beam for kid swing (300 lbs load / 150 lbs and 2 swings assumption). One end will bolt to the tree (just for convenience). What "treated lumber" lumber size and ...
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0answers
68 views

Use Textured Strand Lap Siding or concrete board to attach outside deck trim

I want to "cover" the outside of the deck trim because the look of treated wood isn't good. But if I use deck material (composite) to run around, it's going to be expensive. I am planning to just use ...
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1answer
603 views

How to waterproof inside cedar shed?

I want to build this shed like the picture below (I got from someone else) using my leftover cedar fence pickets: However I don't know if it will leak water from the side. There isn't much protection ...