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3
votes
4answers
8k views

How can I verify that the protective earth/ground is separate from the neutral wire in an electrical AC installation?

It's easy to verify which wire is the phase without relying on wire colors. But I'm not sure if I'm able to determine which wire is the ground and which is the neutral. I have heard that using a ...
5
votes
3answers
12k views

How can I calculate the load capacity of a platform?

I'm planning to build a very basic bed frame, but I'm not sure what size lumber to use. I was thinking of building the entire thing from 2x4s (legs would be 4x4), but I'm not sure if this will be ...
7
votes
6answers
14k views

What should I use for a sandbox bottom?

I'm building a sandbox for my three-year old. It will probably sit on the deck, so it needs some kind of bottom. Ideally, we should be able to move the sandbox around the deck. Is it necessary for ...
4
votes
2answers
4k views

Building a raised wall for a pond

We are looking to build a small pond (9'x18'x6'), but we want the edge to be raised up about 8". I am thinking about using CMUs (Concrete Masonry Units) which are 8x8x16. The entire pond will be lined ...