Deck Stair Landing Beam and Joist Framing

By |Last updated on |Deck & Patio|0 Comments

How to fasten 2×10 beams to 6×6 support posts and frame joists with Simpson Strong-Tie metal-wood connectors to build a deck stair landing.

Table of Contents

  1. Planning and Building Wood Deck Stairs with Landing
  2. Tear Down Old Wood Deck Stairs and Landing
  3. Remove Wood Deck Stair Landing Support Posts and Concrete Footers
  4. Build Deck Stair Landing: Pour Concrete Footers and Install 6×6 Posts
  5. Deck Stair Landing: Saw Post-to-Beam Support Notches
  6. Deck Stair Landing Beam and Joist Framing (you are here)
  7. Deck Stair Stringer Hanger Board and Simpson Strong-Tie LSCZ Stringer Connectors
  8. Install Wood Deck Stair Stringers and 4×4 Newel Posts
  9. How to Frame a Wood Deck Stair Landing
  10. Build Wood Deck Stairs – Layout Solid and Sawn Stringers
  11. How to Install Deck Stair Stringers and Treads
  12. Build Wood Deck Stairs and Landing – Completed Job Photos

As discussed in the project introduction, the stair landing design and materials are:

Wood Deck Stair Landing Framing and Materials Diagram

Wood Deck Stair Landing Framing and Materials Diagram

Knee bracing and blocking between the joists is omitted for clarity.

Deck Stair Landing Beam and Joist Framing

Beam-to-Post Attachment

1/2 inch holes for bolts are drilled in the 6×6 posts to serve as guides for drilling the 2×10 beams. Great precision isn’t required here, however the holes should be at least 2 inches away from the end of the post and at least 2-1/2 inches between holes. The notch is 9-1/4 inches tall giving me plenty of room so I went with 3 inches from the ends and slightly staggered the holes for extra strength.

I treated all saw cuts and holes with Copper-Green Brown wood preservative per the 2014 Prescriptive Deck Code which states “Field cut ends, notches and drilled holes of preservative treated wood shall be treated in the field in accordance with AWPA M4.” per the General Requirements on Sheet 3. A pipe cleaner soaked in preservative is ideal for swabbing the drill holes:

6x6 Deck Post - Treat Saw Cuts and Bolt Holes with Copper-Green Brown Wood Preservative

6×6 Deck Post – Treat Saw Cuts and Bolt Holes with Copper-Green Brown Wood Preservative

I waited for the preservative to soak overnight, then clamped the 2-ply 2×10 Pressure Treated beams to the posts. Make sure the beams are resting firmly against the bottom of the notch, then drilled 1/2 inch holes through the 2-ply 2×10 beam using the previously drilled holes in the post as a guide:

Wood Deck Stair Landing - Drill Bolt Holes Through 2x10 Beam

Wood Deck Stair Landing – Drill Bolt Holes Through 2×10 Beam

The 2×10 beam is then fastened with 1/2 inch dia. galvanized bolts with washers and hex nuts:

Wood Deck Stair Landing - 2x10 Beam Bolted to 6x6 Support Posts

Wood Deck Stair Landing – 2×10 Beam Bolted to 6×6 Support Posts

Deck Stair Landing Joist Framing

All framing is done with Simpson-Strong Tie metal-wood connectors and wood screws. I used H1Z ties and LPC4Z connectors to fastens the 2×8 joists to the 2×10 beams. The beams are bonded together with Simpson SD #10 x 2-1/2 inch long screws to prevent separation and warping:

Build Wood Deck Stair Landing - Simpson Strong-Tie Metal Wood Joist to Beam Connectors

Build Wood Deck Stair Landing – Simpson Strong-Tie Metal Wood Joist to Beam Connectors

LPC4Z 4x post caps connect the outer joists to the 6×6 post. This beats toe-nailing joists to the beam!

Build Wood Deck Stair Landing - 6x6 Posts Beam and Joists

Build Wood Deck Stair Landing – 6×6 Posts Beam and Joists

Joist framing for other side of the landing:

Wood Deck Stair Landing - Joists Mounted on Support Beams

Wood Deck Stair Landing – Joists Mounted on Support Beam.

The stair landing joist is checked for level. The bubble is between the lines and within a fraction of being perfect:

Wood Deck Stair Landing - Level Check Joists

Wood Deck Stair Landing – Level Check Joists

The deck stair landing is starting to take shape:

Build Wood Deck Stair Landing - 2x8 Joists Mounted to 2x10 Beams

Build Wood Deck Stair Landing – 2×8 Joists Mounted to 2×10 Beams

This project is continued in Deck Stair Stringer Hanger Board and Simpson Strong-Tie LSCZ Stringer Connectors.

Bob Jackson

Copyright © 2018 HandymanHowTo.com   Reproduction strictly prohibited.

Leave A Comment