Questions tagged [weight-capacity]

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6 votes
2 answers
2k views

Would this TV stand made almost entirely of 3/4 in birch plywood withstand the load?

I'm currently doing a TV stand, pretty new to woodworking. And I was wondering if this would be able to hold the weight of the TV + soundbar? Let's say 40 kg / 88 pounds. The TV base is about 99 cm/39....
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  • 63
1 vote
1 answer
3k views

Weight limit of IKEA Lagkapten/Alex desk

Not sure if this the best place to ask but worth a shot. I want to put a fish tank on the end of this desk. It is a 10 gallon tank and all up will probably weigh about 65kg (water, substrate, tank ...
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3 votes
2 answers
741 views

Pull-Up Bar - Wooden dowel - 1.25" actual diameter

I searched but I couldn't really find this answer. I want to use the linked wooden dowel as a pull-up bar. 1.25" oak (not specified which). Is this gonna be strong enough across a roughly 30"...
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0 votes
1 answer
111 views

How much could I load on to this cabinet? Should I reinforce it?

I bought this cabinet and I'm trying to determine if it can handle an Aquarium I'm trying to place on it. Here is the cabinet The aquarium is 20 Gallons dimensions are 17.75" x 17.75" x 15....
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0 votes
2 answers
144 views

How can I figure out how much weight a piece of wood will be able to handle before breaking?

I am currently planning an Eagle Project in which I am building a pergola with a porch swing attached to one of the top pieces. In doing so I need to figure out if I will need a bigger piece of wood ...
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3 votes
3 answers
279 views

How do I calculate the weight capacity of my one side supported bookshelf (Spine Booshelf?)

I am planning on building a bookshelf as shown below. Each shelf (maple plywood) will only be supported via a dado cut into the 2x4 (SPF pine), and glued. I am currently planning on cutting 3/4" ...
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  • 33
0 votes
1 answer
104 views

Weight capacity for 3/4" plywood curvy board

We built Montessori curvy plywood balance boards. They are 36" x 11" deep by 3/4" thick. They are made of 3 layers of maple veneer plywood. I'm unsure of the exact classification of the ...
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1 vote
1 answer
422 views

Is this desk structurally secure?

I've built my first desk using IKEA Adils legs and a worktop I bought and had custom-cut. It is: European Walnut Depth: 40mm Width: 2900mm Length: 620mm Being supported by an Alex drawer on the right-...
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  • 11
3 votes
2 answers
762 views

Will my table top hold 300 lbs?

I have never made anything out of wood before. This is all new to me. I want to build a computer desk table top. My goal is to just make the table top right now and then purchase some electric legs ...
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3 votes
0 answers
87 views

Height-adjustable base for monitor

I want to build a wooden base for a PC monitor which I can elevate or lower infinitely variable. The height of the base/platform should be between 5cm and 10-12cm. What kind of mechanism can I use? ...
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  • 153
4 votes
1 answer
2k views

How many 6mm dowels to support a shelf of a given weight?

I’m building a bookshelf out of MDF (18mm thick) using 6mm dowels (Silverline brand like the dowelling jig). Each shelf will be dowelled in place at the back and on both sides. I’m concerned about ...
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  • 159
3 votes
1 answer
201 views

What Screw Should I Use For Fasten a 3/8th Steel Flat To A 4x4?

I have a project where I will be screwing some 11" strips of 3/8th flat steel (this one right here https://www.lowes.com/pd/Steelworks-4-ft-x-2-in-Hot-Rolled-Weldable-Steel-Slotted-Metal-Flat-Bar/...
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2 votes
1 answer
81 views

Triple bunk bed design safety and difficulty

pdf link to plan I am planning to build this triple bunk this weekend. I plan to add “cleats” (not sure if this is the correct word) in the form of 2inx4in’s between the sections, on the inner side ...
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  • 21
0 votes
2 answers
268 views

Is this shelving wall mounting idea stupid?

I am quite an amateur when it comes to woodworking, but I am very pragmatic and have done as much research as I can think to do so I don't mess anything up. But I can't really find anything to suggest ...
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2 votes
0 answers
269 views

How can I figure out how much weight this span could support?

I'm designing an outdoor bench. It will be made out of 1in plywood and pressure treated 2x4s. I'm wanting an 8ft length (give or take). The seat will be 7 2x4s. Can I get away with an open span? or do ...
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1 vote
1 answer
579 views

Canopy bed frame design supporting a suspended adult?

I'm in the process of designing a canopy bed with a few kinky features. Most of them aren't too problematic, but I lack the knowledge about structure and weight support to calculate this: I want a ...
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  • 113
1 vote
2 answers
12k views

How to increase maximum load capacity of a table?

I've never worked with wood before but would like to create my very first desk. Please let me know if this is a good idea and how to improve upon it! I plan to get a cheap desk from ikea: http://m....
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  • 13
4 votes
1 answer
483 views

Can I enlarge this wood rack without beefing it up?

I'm going to build this firewood rack, but I want to enlarge it and make it 8 feet wide and 54 inches high. It's all stock 2x4 material. Considering the increased load it's going to be carrying, will ...
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1 vote
1 answer
1k views

How much weight can this stand hold? [closed]

I got this stand from a friend of mine years ago. Its unbranded. I want to use it to hold a 55 to 75 gallon fish tank which can weigh 456 pounds to 622.5 pounds. How much weight can this stand hold ? ...
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  • 13
1 vote
1 answer
179 views

For a kid's balance beam, which way should the grain face?

I made a wood balance beam for my daughter out of a fir 4x4 and some compression joints. Which direction should the grain be? Should the grain run parallel or perpendicular to the top of the beam?
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2 votes
1 answer
269 views

Convert a minimalist bench design into a desk

I saw this tutorial and I really want to build it for a workspace area at my job. The measurements of this bench were 16″ high x 40″ long x 13.5″ deep, but I'd like to make a table that's 29" high x ...
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  • 123
3 votes
2 answers
2k views

Weight bearing for a loftbed and wood only joints

I'm planning on making a loft bed, and I now got a plan and I'm working on the details. The measurements I'm going for is 1700(start of the top beam)x1700x2100mm. The main beams are 98x98mm, middle ...
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  • 33
3 votes
1 answer
159 views

Load Bearing Weight Capacity of a 3/4" x 3/4" Wood Molding?

I'd like to custom install Ikea PAX sliding doors into my existing closets, recessing them into the closet opening. My idea is to create a custom "frame" simulating the Ikea closet frame onto which ...
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  • 31
3 votes
2 answers
9k views

What is the minimum thickness of plywood needed to support an adult on a 38" span?

I have in the past dispensed with a box spring and used 1/2" plywood to almost completely cover the mattress base. The advantage is that the mattress has uniform support and never shows the dents from ...
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  • 213
12 votes
1 answer
4k views

How do I calculate the weight threshold for plywood boxes/cabinet carcasses?

How do I calculate the weight threshold for cabinet carcasses based on the dimensions, material (e.g., plywood, mdf), and material thickness? Has someone already worked out a nice formula that I can ...
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  • 221
18 votes
5 answers
55k views

How can I determine the load capacity of a simple bench?

I'm new to woodworking and I'm in the planning phase of making a bench like the one pictured below. I'm planning on storing very heavy boxes on this and would also like to use it as a stool to reach ...
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  • 439