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14' x 16' Patio Deck

Technical

Photos

Project Description:

Goals:

  1. Construct new deck attached to sunroom using low maintenance materials.
  2. >Construct 14' x 16' deck, 4' x 4' landing with flower box, rails and stair system.

MLC Assessment:

  1. New construction. Existing house and sunroom in good condition. No issues to deal with.
Implementation:
Structural (House): Install GAF ice and water shield over sheathing.
Attach 2x12 PT ledger to existing house sill with 1 1/2" ledger flashing.
Construct upper level deck, landing, dual access stair systems, and landing pads.
Construct custom flower box on landing.
Structural (Deck): 2x12 PT 12" o.c. upper level framing with 2-ply rims and band over 3-ply 2x12 PT carrying beam. 1' cantilever over beam.
2x12 PT blocking at mid-span and over beam. Additional blocking for picture frame design.
Joists attached to beam with hurricane ties for uplift restraint.
6x6 PT support posts anchored to footings with post bases for uplift restraint.
ACQ pressured treated lumber with Z-Max treated hangers and connectors.
All fasteners rated for ACQ pressure treated lumber.
Structural (Landing): 2x8 PT 12" o.c. 4' x 4' landing framing with 2-ply rims and band.
2x8 PT blocking for picture frame design.
4x4 PT support posts.
Two 6 1/2" risers drop from upper level deck to landing.
ACQ pressured treated lumber with Z-Max treated hangers and connectors.
All fasteners rated for ACQ pressure treated lumber.
Decking: Trex Accents (Saddle color) 5/4x6 composite decking, picture frame design.
Stairs: 1/2 flight, dual set, low-pitch (6 1/2" risers, 11 1/4" tread depth).
12" o.c. enclosed stringers.
Trex Accents (Saddle color) 5/4x6 composite decking for treads.
Railings: Fiber Composites vinyl-over-composite railings with square vinyl balusters.
4x4 ACQ pressure treated posts with vinyl post dress sleeves and caps.
Finish Trim: Trex Origins trim board.
Lattice: Custom-built horizontal panels and access doors using Versatex PVC.

Deck Location at Sunroom and House

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New Deck and Landing Views

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Overall view
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Picture frame decking layout
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Landing and dual access stairs
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Lattice and storage access doors
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View down staircase to landing area
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Flower box detail

Construction Details

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Upper level deck framing (partial completion),
posts, and carrying beam detail
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Upper level deck showing cantilever,
posts and carrying beam
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Upper level deck
showing framing inset for landing
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Landing and stair framing detail
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Landing picture framing detail
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Stair framing detail

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     Lightbox2 - Courtesy of Lokesh Dhakar