What are the pros and cons of sheds?

Sherlock: Sheds are relatively inexpensive and you get a lot of storage, but they're detached and have size restrictions.

Lewis: Having a shed frees up space in your home and garage, and it's certainly better than renting a storage space.

Smith: Sheds are the cheapest addition you can build to get more space

How should I determine the best size/scale and location for the structure?

Sherlock: Make a detailed list of what you want to store or how you want to use the space. Then add 20 to 30 percent to that size.

Lewis: Think about the stuff you're storing and add 2 feet around it for clearance. Anything more than 150 square feet requires a permit, so most sheds stay within that guideline.

Smith: The budget is really the biggest factor in determining size. Most people put the shed in a corner of the yard to preserve the use of their land.

How can I keep insects and animals out of the structure?

Sherlock: Screen the vents and you should also use some type of deterrent like moth balls, and spray the shed when you spray your house.

Lewis: The best way to keep insects and critters out of your shed is to keep the doors closed when not in use. Sheds are watertight, but they are not airtight.

Smith: Install a screen around the perimeter of sheds to help keep vermin out.

How long do such structures usually last?

Sherlock: If you get top-of-the-line materials, you should get 50-plus years. If it's built with standard materials, you can expect 20 to 30 years.

Lewis: Sheds should last 20 to 25 years. You need to maintain your shed by painting it to protect against the elements and it is especially important to keep moisture out.

Smith: A high-quality wood shed will last as long as your house, if you keep it maintained.

What types of foundation options would you recommend to support a structure?

Sherlock: We recommend a concrete footer with a slab or, if it's elevated, you could use a raised platform with a pier deck footer.

Lewis: We use 3- or 4-inch 4 x 4 pressure treated skids with pressure treated floor joists and then a three-quarter inch pressure treated floor.

Smith: We use masonry pavers under pressure treated timber to support the structure, keep it level and prevent sinking.