This app will calculate both normal and unit calculations for a variety of construction projects, including rafters, columns, concrete, stairs, drywall, painting, decking, roof systems, and flooring.

Picture a stair slope in your mind to estimate about a 40-degree slope and guess at a landing point. Rest any straight piece of deck lumber on the deck and level it over to the landing point. Measure ...

To lay out a set of stair stringers from scratch requires a little math, but not much. Equally important is some quiet time to run the numbers and at the same time to think about the construction ...

DEAR TIM: I have to build a simple set of steps but I’m totally lost. I don’t understand how to calculate what the distance should be for the risers and the treads. Everything about building steps ...

DEAR TIM: I need to build some simple outdoor steps to replace ones that fell apart and rotted (even though they were made with treated lumber). I’m fairly handy and have a decent grasp of the math ...