To calculate the number of linear feet of baseboard you’ll need, measure the length of each wall of the room you’re installing them in as close to the floor as possible, rounding up to the next full linear foot. If it’s your first DIY molding job, having a few extra feet on hand for miscuts is a good idea.

You may need a permit to install your window seat. Even though it's an indoor modification, some municipalities require permits for any built-ins added to homes. Check with your carpenter or, if you're DIY-ing, do some research on your city's requirements.

Modern brick houses are really stick-built homes with a brick facade for aesthetic purposes only, so most have framing. With genuine brick construction, most homeowners install furring strips over the interior of the brick and then install drywall over those strips to cover the brick wall, so they don’t have traditional framing.

Removing a load-bearing wall affects the structural integrity of your home, so you’ll need a permit before starting the work. Building codes vary by municipality, and obtaining a permit and having the work inspected after completion will ensure you’re in compliance with all applicable regulations.