Questions tagged [lumber]

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

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1answer
40 views

4x6 wood swingset beam, single span, center load max lbs?

I'm building a swing set with a 10 ft 4x6 pine beam. I would like to determine how much active load the beam can support at the center point, or at least minimally how much static load. I've ...
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1answer
29 views

Measuring angle before cutting?

According to the instructions, I have to make a 21.5 degree cut in a 2x4 piece of lumber. Here’s a screenshot of the instructions: My question: can this measurement be done without having to buy a ...
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3answers
45 views

Edging options for newly paved asphalt driveway and parking lot

My partner and I are about to hire a contractor to pour new asphalt on our driveway and parking lot. My question has to do with edging. I have read up on Permalock which is an aluminum edging that ...
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3answers
74 views

How far can a 2x4 or maybe 2x6 support over a 10' span?

I am creating a shelf in my garage to go over the front of the car. The rules of the town home community is that we can't have anything that puts weight on the structure of the garage, so have ...
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1answer
60 views

Rebuilding fence - lumber questions

I recently bought a condo with a 11'x13' patio with a wooden privacy fence. The fence is in pretty bad shape so I want redo it while we are locked down in our houses. I've read up a ton and just want ...
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1answer
91 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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3answers
132 views

What amount of wood defects is acceptable in a lumber delivery?

I took a delivery ($200 delivery fee!) from 84 which included eighteen 2x6 studs. Of those, only two didn't have significant defects. About 14 have significant (1"+) wane on two sides. Four have long ...
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1answer
116 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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3answers
86 views

Does RTD in plywood mean “Rated” or “Resistance Temperature Detectors”?

Lots of plywood at Home Depot have the letters RTD in the title, with no further detail. Many of these have multiple user questions of the form "What does RTD mean?" Answers seem to be split 50/50 ...
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0answers
17 views

Replacing two 2“ x 12” - 24 (span) with comparable strength LVL beam

I'm the GC for my home palapa (covered patio) project. No walls, with 4 posts to support a 20' x 24'roof (metal roof). My framer gave me a B.O.M. of 4 each 2"x 12"-24 feet and 4 each 2"x12"-20 feet, ...
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2answers
26 views

Are cedar planks from a home center store suitable for a sauna?

When I look-up cedar boards on various home center web sites, I see many choices, but I'm not sure which most closely matches the typical sauna prefab and pre-cut kits. My situation is such that a ...
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2answers
75 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
807 views

What's the difference between “Framing Lumber” and “Framing Studs”?

The Home Depot website has these two as categories under Dimensional Lumber. Why would one want to exclude items from one category during a search for wood to use in a project? What is the ...
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2answers
32 views

When using a VPA (Variable-Pitch Connector) to connect roof rafters to a top plate, how and where do you install hurricane ties?

When a VPA to attach rafters to a top plate, it seems there isn't room left for your normal hurricane tie to be put in place: The part of the VPA that nails on to the top plate obstructs the ability ...
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0answers
34 views

Can a header be continuous across the whole wall if it is above the top plate?

I have seen that continuous headers can be problematic due to lateral forces. However, in my situation the "header" is actually a 4x6 purlin which is above the top plate. The original purpose of the ...
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1answer
61 views

garage storage area project

Thanks for reading my question! I'm trying to setup a storage area in my garage. I have an RV garage which is 14.4 feet tall and no RV so right now it's useless space. I'd like to make a room above ...
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1answer
58 views

Best solution to fix this siding gap with the trim

We recently replace some bad trims and changed some windows. But we ran into this issue now where the siding is not touching the new trims. Some part is is just 1/4" but this photo shows the largest ...
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1answer
25 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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4answers
201 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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1answer
135 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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2answers
176 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
188 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
35 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
100 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
77 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
386 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
133 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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3answers
14k views

Why are 2“x4”'s really 1.5“x3.5”?

Just curious as to the reasoning, is it a spec, or is it simply 'backwards compatibility'?
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2answers
88 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
70 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
28 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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2answers
102 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
45 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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9answers
83k 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 ...
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1answer
247 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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3answers
679 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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9answers
7k views

Can I build a hot tub using lumber?

So, as it stands now I am hoping to build a hot tub from lumber. I've done ponds and makeshift pools and such, but this I want to be a lasting thing. It'll be framed and then lined with a thick rubber....
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2answers
145 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
157 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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1answer
1k 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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2answers
107 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
72 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
163 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
94 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
65 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
4k 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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2answers
314 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
245 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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2answers
1k 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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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 ...