How to Build a Deck
Learn how to build a deck with our detailed step-by-step guide. Follow our easy instructions to get it done right.
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0 of 6 steps completedStep-by-Step Instructions
1 Step 1: Design Deck and Get Permit
Step 1: Design Deck and Get Permit
Draw deck plan with dimensions, submit to building department for permit.
Deck Building Plans Book
Comprehensive guide with deck designs and codes
2 Step 2: Install Footings and Posts
Step 2: Install Footings and Posts
Dig holes below frost line, pour concrete footings, set posts on post bases.
6x6 Deck Posts
Heavy-duty posts for deck structure (8-foot)
Post Base Brackets
Metal brackets for connecting posts to footings
3 Step 3: Frame Deck with Joists
Step 3: Frame Deck with Joists
Attach ledger board to house, build rim joists, install floor joists 16 inches on center.
2x10 Lumber
Treated lumber for deck joists (12-foot)
Joist Hangers
Metal brackets for connecting joists to beams (box)
4 Step 4: Install Decking Boards
Step 4: Install Decking Boards
Lay deck boards perpendicular to joists, space 1/8 inch apart, stagger end joints.
Composite Decking
Low-maintenance decking boards (12-foot)
Deck Screws
Coated screws for attaching decking (5-lb box)
5 Step 5: Build Stairs
Step 5: Build Stairs
Calculate rise and run, cut stringers, install treads with proper slope for drainage.
Stair Stringer Brackets
Metal brackets for attaching deck stairs
6 Step 6: Install Railing
Step 6: Install Railing
Add posts, rails, and balusters to code (36-42 inches high, max 4-inch spacing).
Deck Railing Kit
Pre-made railing system for deck (6-foot section)