Construction of Deck Stair

Deck stair construction is an important part of the deck. The stairs are the access ways to the deck and hence should be well built, keeping in mind the safety as well as the decor. The deck stair design should be such that it complements the deck design and enhances its look. While doing the layout the deck stair construction, keep in mind the requirements. The stairs can be made from solid wood, steel, virgin vinyl, recycled plastic, plastic resin mixed with wood fibers and aluminum or forged iron, depending upon the design. The easiest way to build on the deck stair construction is the solid wood stair.

           

During planning the deck stair construction, check the municipal zoning requirements about setbacks and no-build zones. Do not construct the deck or stairs such that they exceed the setback limit or will be in a no-build zone.

The first thing to do is to determine the rise and run of the steps in the deck stair construction are: measure the height of the deck from the ground in inches. Divide it with 7.5, which is the approximate rise of each step. This will give the number of steps to be built. The run of each step should at least be 12" or more than that. The slope of the staircase should be around 40 degrees from the ground.

Second step is to prepare a concrete footer, after all these calculations; mark the area where the staircase will touch the ground. Dig a 6" deep square area and remove all the grass and dirt from it. Fill 2" of it with pea gravel and level with a tamper. Fill the rest of it with fast-drying cement and level it using a trowel.

Next is to prepare the stringer for the deck stair construction. The stringers are made from a 2x12 board. Use a framing square to mark the portions that have to be cut off from the stringer. Place the stringer so as to mark the rise of 7.5" and the run of 12" per step. Start marking the next step immediately after the previous one to get a zigzag pattern. Mark returns lines for top step, which will be attached to the deck, and bottom step that will be attached to the concrete base. Use a circular saw to cut and a hand saw for the finishing. Make another stringer using the first as a template.

Then place the stringer such that it touches the deck as well as the concrete footer. Check its placement using a level and a plumb. Attach it to the deck using angle brackets and 3" galvanized deck screws. Attach the two parallel stringers at the base by placing a 2x6 board between them and fixing it with 3" galvanized deck screws. Attach the board with concrete using masonry anchors.  You are on the way to completing the deck stair construction.

Next, cut and attach the Treads. Each tread is approximately made up of two lengths of 2x6 boards. Cut the treads keeping 1" extra length on each side of the stringer. Place one tread on the stringer and push it to touch the back end. Fix it there using two 3" deck screws per side maintaining the 1" margin on each side. Place the second tread board on the same step and fix it keeping ¼" gap between the two tread boards. Continue till all the steps for the deck stair construction are attached.

And lastly, prepare the railings for the deck stair construction by cutting two pieces out of 4x4 posts of 30" each. A little portion of the bottom-most tread notch has to be cut out from front sides to allow the post to be attached to the stringer closely. Fix the post with 4" deck screws to the stringer. Make sure that the posts are exactly vertical. Cut 2x4 railings of the length same as the distance between the lower post and the deck railing. Attach the railing to the post and the deck with 3" deck screws, keeping it parallel to the slope of the stairs. Connect a baluster at each step keeping not more than 6" distance between each.

The deck stair construction is done.  It really needs a little hard labor on your part but the deck stair construction does not need brilliant minds as long as you follow the procedure carefully.  If you find it tedious on your part, you can hire experts in doing the deck stair construction.