Table of Contents
Do stair stringers need support?
Yes, the stringers need to be supported along their length, but they can span a few feet too, depending on 1) the width of the stairs, 2) the number of stringers, and 3) size of riser board. 1) The wider the stair the more load will be transferred to the stringers.
How much weight can stair stringers hold?
Reply: 29 CFR 1910.24(c) states; “Fixed stairways shall be designed and constructed to carry a load of five times the normal live load anticipated but never of less strength than to carry safely a moving concentrated load of 1,000 pounds” [emphasis added].
Are stair stringers load bearing?
If the staircase walls sit at a 90 degree angle to your supports, it is almost definitely load bearing. Another way to tell if a staircase wall is load bearing or not is to start at the lowest point in your home and work your way up to the staircase wall in question.
Can deck stringers sit on the ground?
SAFE, SUPPORTED STAIRS: Deck-stair construction varies, but the general requirements are consistent: proper footing support, and an adequate landing. Regardless of the stair run and number of treads, the stairway needs a footing at the bottom to support the stringers—they can’t just rest on the ground.
What do deck stringers sit on?
Your stair stringers will rest on your landing pad, but you should include a base plate. A bearing block is typically a 2×4 that connects your stringers. It requires you to cut a 2×4 profile at the end of each stringer so that your stairs are resting on that piece of wood.
How to build stairs with stair stringers?
Stairs with more than three steps should be built using stair stringers. The first step is to measure the height of the stairs to determine the number of stairs you need to build. The maximum riser height is 8″ and the minimum tread depth is 10″.
How do you build stairs on a deck?
The first step is to measure the height of the stairs to determine the number of stairs you need to build. The maximum riser height is 8″ and the minimum tread depth is 10″. Most deck builders use 2×6 material to frame the stair boxes and use (2) 5/4×6 deck boards for each tread with a 1/2″ overhang over the riser board.
How big is a stair box?
The stair-box we have is much smaller than the one shown in the picture. It’s at least the width of a single bed but only about a third of the length of a single bed and only about 65-70cms high. I will get the exact measurements tomorrow (and try and get some pictures).
What size deck boards do I need for stair boxes?
Most deck builders use 2×6 material to frame the stair boxes and use (2) 5/4×6 deck boards for each tread with a 1/2″ overhang over the riser board. Cut the sides of the boxes and fill in the interior with blocking every 16″ on center for wood decks and 12″ on center for composite decks.