Stairs that attach to the rim joist at the outside edge of a deck will probably overload the joist.
Attaching deck stairs.
Leave 1 4 between the first and second tread board and attach with deck screws.
This line indicates where the stairs attach to the deck.
Learn how to safely install ledgers the primary connection between deck and house plus beams joists guardrail posts and stairs in this 5 part deck building video series.
Veteran carpenter mike guertin explains the loads and codes applying to deck stair connections.
When the treads are installed this cut.
This is a cut line to allow you to shift the entire set of stairs down.
Critical deck framing connections part 1.
It is not always done the same way.
When attaching stair stringers use a level to draw two plumb lines to mark the left and right positions for the skirts and horizontal lines to mark the top tread location.
Tack the skirts to the rim with 3 in.
Attach the skirt boards to the rim joist.
Push one tread against the back of the stringer center and fasten with two 3 galvanized deck screws per side.
Then screw through the back of the deck rim into the skirts with three more deck.
Most deck stairs are cobbled onto the deck as afterthoughts.
Laying out attaching deck stair stringers how you attach the stair stringers to the top of the deck and to any landings will be critical.
You should reinforce the rim behind the stairs to provide a solid base for attachment.
When i mount stairs to the rim joist that closes off the end of the floor joists i use simpson strong tie dtt2z deck tension tie hardware to secure the rim to the joists near the two outside stringers.
There won t be a toe kick at this point of the stairs.
Cut stair treads so that they overlap the stringers by about 1 on both sides.
Attaching stairs to a deck.
The final stage in building your deck is likely going to be when you connect the stairs to the deck.
At the bottom step subtract the thickness of a tread from the rise and mark a line perpendicular to the rise.