Questions tagged [strength]

Use for Questions where the strength of the materials and/or the overall design is of primary importance.

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4
votes
3answers
2k views

How can I strengthen my 3/4" Plywood Bunk Bed Plan?

I'm working on a plywood bunk bed for our two 4 year olds. Obviously I need it to look cool, but more importantly not collapse on their impressionable skulls. I plan on using 3/4 plywood (.706 or so) ...
6
votes
3answers
2k views

Shelf made of 1x2 pine boards. Stable?

This is just a basic project for fun and experience. The shelf will measure about 48,24,12 (H,W,D). Do you think this would hold an even load of 50 lbs per shelf with 5 shelves?
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2answers
3k views

Lumber Dimensions for Brachiation Ladder (Monkey Bars)

My American Ninja Warrior watching daughter has asked me to build her a Brachiation Ladder (fancy name for overhead ladder or monkey bars). Here's an example: The interesting part is that she doesn'...
2
votes
1answer
142 views

Can I make a stool from thinner OSB

I have some leftover piece of 12mm OSB. I want to make this stool out of it: Originally it was made from 18mm plywood, obviously I need to adjust to use thinner board. I want to keep the weight to ...
6
votes
1answer
6k views

8 to 12 mm plywood box joints: brackets vs glue(box joint) vs screws

There's very similar question, but there're no answers for my specifics. I'm going to build few open-top boxes to be used mostly as a bench to seat 2 grown-ups, with ability to also carry things in ...
4
votes
5answers
2k views

Supporting a level box on an uneven surface

I am building some 6' x 2' x 1.5' (depth) cedar planter boxes for specific locations on concrete outdoors. The boxes need to sit as close to the ground as possible, a few inches max. I am building ...
4
votes
3answers
5k views

Where should the trademark be placed on a baseball bat?

As a kid during the days of Little League (my last close contact with baseball), we always admonished one another not to hit the ball on the trademark of the bat. You'll break it! Well, ...
2
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2answers
1k views

Structural engineering with wood: determining post size, span, etc, for a timber frame house [closed]

This may be off-topic here, not sure. My college background is math and physics, but I'm hoping to switch gears and build my own home and live off the land. So, I've been studying and reading up on ...
2
votes
2answers
662 views

Lightest woods that would be strong & stable for 2 components of DIY Wall Stall bar?

Lightest woods that would be strong & stable for components of DIY Wall Stall bar? Maybe this list can help you help me in shortlisting. Reference list of possible woods available but may ...
5
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1answer
293 views

Should I orient the cupped sides toward each other when laminating boards?

I'm making a replacement press plate for a small apple press using some edge glued oak boards from a hardware store. The board was flat as purchased, and after acclimating to my shop conditions ...
6
votes
1answer
436 views

Make a bunk bed v2

I decided to make a bunk bed for my room as it is small and I need a desk. I made a first design in this thread Make a bunk bed But I realised that all the strength would be on the angle brackets ...
11
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3answers
591 views

Make a bunk bed

I decided to make a bunk bed for my room as it is small and I need a desk. I'm a beginner at woodworking and I need some help. I have made some "plans", I will put 7x2m stakes, 4x1.40m each around ...
4
votes
4answers
996 views

How can I create a sturdy walking cane

I've read a little and I see that butcher blocks are really sturdy, but they only seem to be used for flat surfaces, can I somehow adapt the technique for walking cane. eg. make a dozen cylinder and ...
7
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5answers
5k views

Using softwoods for bench tops

As most of the regulars know I work with a lot of whitewoods. Pines mostly that come from pallets and what not. I recently made a workbench from an old door but it was hollow inside so I plan on ...
3
votes
0answers
108 views

Maximum size for an unsupported bench [duplicate]

I intend to make a number of simple wooden benches in the near future. However, my aim is to make a wider bench capable of seating four across - pew style. Can I reliably assume that the same plan ...
12
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3answers
24k views

Is there a reference for how much weight a dowel rod can support before breaking?

I realize I am still in the beginning phase of designing this but I want to make a guitar wall hanger. The design as is will be a simple base plate (either plywood or 1x dimensional lumber) with 2 ...
7
votes
4answers
9k views

How can I design a large cherry table with no aprons?

I am trying to build a cherry table. I will be creating the top out of multiple 8/4 boards using standard techniques. The table will be 42" wide by at least 68" long. I have come up with the idea ...
6
votes
3answers
3k views

Can you make a small wooden sail boat from cedar?

We have a lot of trees we've been removing from our property for one reason or another. Instead of throwing them on the burn pile, I thought I might be able to make something of them. I've always ...
8
votes
1answer
538 views

How do I calculate the amount of downward force a nail will support?

I have a project in mind that creates a removable panel ceiling, made of wood, in my finished basement. Part of the current design is fastening boards to the 1950's ceiling/floor joists that the ...

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