Building deck stairs are often the most challenging part of a diy deck project.
Concrete under deck stairs.
Item 701414 model str6612.
Concrete landings make for stronger deck stairs.
If the stairs are resting on a concrete slab or a patio then the slab or patio should also be built with a similar foundation to resist frost movement.
A typical pad has a 4 inch layer of gravel underneath and about 4 inches of concrete on top.
A concrete landing for your deck stairs will always result in a stronger stairwell.
As mentioned above the base plate is the horizontal piece of wood usually a 2 4 that connects the stringers at the base of the stairs.
Wet the concrete surface once again and soak any surrounding grass or shrubs.
6 step pressure treated southern yellow pine deck stair stringer.
However if you are landing on the yard you may want to install paver blocks or fill the area with compacted gravel to promote drainage.
If you are landing on a concrete pad or a patio this should not be a problem.
It should bubble on contact.
These 17 articles will also cover how to build stair landings and ada ramps.
When constructing a deck what you place below the deck can be just as important as the materials and finishes you choose for the surface.
By installing a concrete landing you not only provide a very strong base for the bottom of the stairs but you also help to reduce the load requirement for a posts pr beams that are attached to stringers on the stairs.
Why should you put gravel under a deck.
If no concrete pier is used the post should bear on the footing and stringers should bear on 2x4 blocking fastened to 4x4 posts with 8x3 1 2 screws or 16d nails.
One of the easiest ways to attach deck stair footings to concrete is through the base plate.
We will teach you how to cut stair stringers to meet code for rise and run step limits.
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Allow the acid solution to etch for 20 to 30 minutes to neutralize the concrete s alkalinity and then remove the acid with a broom and plenty of water.
When building a landing for deck stairs typical codes require the pad to extend beyond the steps about 36 inches behind the steps about 12 inches and on the sides of the steps about 6 inches.
Then sprinkle the acid solution onto the concrete.