Questions tagged [lumber]

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

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23
votes
3answers
17k 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'?
22
votes
7answers
56k views

What are framing dimensions like in the metric world?

I was always curious about this. In the states we have: Lumber - Comes most commonly in 2 inch (2x4,6,8,10,12,16) and 4 inch (4x4,4x6) varieties. Plywood - Almost always 4x8 feet Drywall/...
0
votes
1answer
6k 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 ...
2
votes
3answers
76 views

Inexpensive ideas to extend the height of my fence cinderblock wall outdoors

I live in the desert and a local bud of mine used landscape grade timbers that he attached vertically onto the cinderblock wall every 8ft. Then he laid outdoor rated privacy fabric over the timbers ...
6
votes
5answers
22k views

Can I use the area above my garage for storage?

The ceiling joists in my garage are 2x8 spaced 24" o.c., and span 21'. The roof load appears to be carried by the walls, so the joists seem to only be in place to hold the drywall. I'd like to use ...
3
votes
1answer
38k views

Is 90mm x 45mm a metric 4x2?

This is similar to this question about metric measurements. In Australia, a common measurement is 90mm x 45mm for timber. A 4x2 would be (approx) 100mm x 50mm but, as I understand it, that is the ...
3
votes
1answer
5k 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 ...
2
votes
2answers
2k 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 ...
1
vote
1answer
81 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 ...
0
votes
5answers
23k views

how to carry 20ft lumbers to home

I need to carry one 20 ft lumber from HomeDepot to my home. I don't have a truck but have a minivan (Odyssey). The minivan does not have a roof rack though. A friend of mine suggested that I could ...
0
votes
2answers
379 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?
0
votes
4answers
3k 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 ...
-1
votes
1answer
237 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 ...