How to saw notches in 6×6 deck posts for 2-ply 2×10 beams per Figure 11: Post-to-Beam Connection Options on Sheet 8 in the 2014 Prescriptive Deck Details (building code) for a deck stair landing. The landing is built as a “free standing deck” per the Code.

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  (you are here)
  6. Deck Stair Landing Beam and Joist Framing
  7. Deck Stair Stringer Hanger Board and Simpson Strong-Tie LSCZ Stringer Connector
  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

Deck Stair Landing: Saw Post-to-Beam Support Notches

After marking sawing each 10 feet long post shorter to evenly support the deck stair landing, notches must be sawn to support the 2-ply 2×10 beam. The actual dimensions of a 2×10 board are 1.5 inches wide x 9.25 inches tall. For a 2-ply beam I measured and marked a 3 inch wide x 9.25 inch tall block on the end of the post with carpenter’s square.

The initial cuts on 3 sides were made with a circular saw, however the 7-1/4 inch diameter blade can only cut a maximum of 2-7/16″ inches deep. The cut is therefore completed with a handsaw:

The notch must be square and smooth to bear the 2×10 beams:

6x6 Wood Deck Post Notch Sawn for Support Beams

6×6 Wood Deck Post Notch Sawn for Support Beams

The red shaded area illustrates the limit of the cuts made by the circular saw. This is why the cuts are finished with a handsaw:

6x6 Wood Deck Post - Beam Support Saw Cuts

6×6 Wood Deck Post – Beam Support Saw Cuts

Fasten the 6×6 Deck Post to the Simpson Strong-Tie ABA66Z Post Base

Place each post on the Simpson Strong-Tie adjustable post base, verify it’s close to plumb with a level, then fasten it with eight (8) #10 x 1-1/2 hex head wood screws:

Fasten Simpson Strong-Tie ABA66Z Adjustable Post Base to 6x6 Deck Post

Fasten Simpson Strong-Tie ABA66Z Adjustable Post Base to 6×6 Deck Post

The post is securely fastened to the adjustable post base:

6x6 Deck Post on Simpson Strong-Tie ABA66Z Post Base

6×6 Deck Post on Simpson Strong-Tie ABA66Z Post Base

Verify the beam notches are level, if there’s problem the stair landing will be uneven! All is good:

Verify 6x6 Deck Post Beam Support Notches are Level

Verify 6×6 Deck Post Beam Support Notches are Level

And level across the diagonal between posts with the 10 foot aluminum straight edge and spirit level (I couldn’t hold the level on the aluminum bar and take a photo at the same time):

Verify Deck Stair Landing 6x6 Support Post Beam Notches are Level with Aluminum Straight Edge

Verify Deck Stair Landing 6×6 Support Post Beam Notches are Level with Aluminum Straight Edge

Next up: Deck Stair Landing Beam and Joist Framing.

Thanks,

Bob Jackson

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