Building a professional backyard deck requires planning, correct materials, proper structural design, and solid construction techniques. Here’s a clear, practical guide you can follow—from initial planning to final finishing.
✅ 1. Start With Planning & Design
Define the purpose
- Dining area? Lounge? Hot tub? Firepit?
- Traffic flow to/from the house
Measure your space
- Sketch a simple layout
- Consider property lines, slopes, and obstacles
Check local regulations
- Permit requirements
- Setback distances
- Maximum deck height
- Railing requirements
- Footing and beam specs
(Legal compliance is essential for a professional build.)
✅ 2. Choose the Right Materials
Decking options
- Pressure-treated lumber (affordable, strong)
- Composite decking (low maintenance, premium look)
- Cedar/Redwood (beautiful, more upkeep)
- PVC (very low maintenance but costlier)
Framing materials
- Use pressure-treated lumber (common: 2×6, 2×8, 2×10 joists depending on spans)
Hardware
- Exterior-grade screws
- Hot-dipped galvanized or stainless-steel brackets
- Concrete mix for footings
✅ 3. Design a Strong Structure
Main structural components:
- Footings → support posts
- Posts → support beams
- Beams → support joists
- Joists → support decking boards
- Ledger board (if attached to the house)
Professional standards:
- Joist spacing: 16″ on center (12″ for composite)
- Beam size determined by span (e.g., double 2×10 often used)
- Posts: 4×4 minimum, 6×6 preferred for taller decks
- Use metal connectors (Simpson Strong-Tie or similar)
✅ 4. Build Step-by-Step
Step 1 — Install the ledger board (if attached)
- Flash it properly to prevent water damage
- Use structural lag screws or bolts
Step 2 — Set your footings
- Dig holes to frost depth
- Set concrete footings
- Install post bases
Step 3 — Install posts
- Ensure posts are plumb
- Cut to the correct height
Step 4 — Build the beam
- Sandwich two or three boards together
- Set on top of posts or use notched posts
Step 5 — Install joists
- Hang joists using joist hangers
- Maintain correct spacing
- Add blocking for stability
Step 6 — Lay decking boards
- Leave consistent spacing (⅛” for wood, follow rules for composite)
- Use hidden fasteners for a premium look
Step 7 — Add railings, stairs, and skirting
- Railings may be required by code (typically for decks >30″ high)
- Stairs need proper rise/run ratio
✅ 5. Finishing for a Professional Look
- Sand any rough edges
- Add fascia boards to hide framing
- Use a high-quality stain or sealant for wood
- Include lighting (post-cap or under-rail LED)
- Add trim pieces for clean corners
✅ 6. Safety & Longevity Tips
- Never skip flashing on a ledger board
- Ensure proper drainage between deck and house
- Use structural screws (not simple nails)
- Maintain annually: clean, inspect, re-seal if wood
Hiring a local contractor to build a deck or pergola is often a far better choice than taking on the project yourself. While DIY builds can look appealing in theory—especially with online tutorials and big-box store kits—the reality is that decks and pergolas are structural projects where experience, precision, and local knowledge truly matter.
One of the biggest advantages of hiring a local contractor is professional expertise. Decks and pergolas must support weight, withstand weather, and remain safe for years. A contractor understands proper footing depth, load requirements, spacing, fastening methods, and material selection. Small mistakes in a DIY build—such as improper post anchoring or uneven framing—can lead to sagging, instability, or even safety hazards over time.
Local contractors also bring critical knowledge of building codes and permits. Most municipalities have specific regulations governing deck height, railing requirements, setbacks, and structural design. A professional builder ensures your project meets all local codes and secures the necessary permits, helping you avoid fines, failed inspections, or being forced to tear down and rebuild. DIY projects often overlook these rules until it’s too late.
Another major benefit is time and efficiency. Building a deck or pergola yourself can stretch into weeks or months, especially if you’re learning as you go or working only on weekends. Contractors have the tools, crew, and workflow to complete the project quickly and efficiently. What might take you an entire summer can often be completed by professionals in just a few days—saving you stress, physical strain, and lost personal time.
Quality and durability are also key considerations. Local contractors use professional-grade materials and proven construction techniques designed to handle local climate conditions. From freeze-thaw cycles to high winds and heavy use, a professionally built structure is far more likely to stand the test of time. Many contractors also offer warranties or workmanship guarantees, giving you peace of mind that problems will be addressed if they arise.
There’s also the matter of cost realism. DIY projects often exceed their original budget due to tool purchases, material waste, design errors, or repairs. A contractor provides a clear estimate upfront and helps you avoid costly mistakes. In the long run, a professionally built deck or pergola often delivers better value and fewer ongoing expenses.
Finally, hiring a local contractor means supporting your community. Local builders rely on their reputation and word-of-mouth referrals, which encourages high-quality work and dependable service. You’re not just getting a structure—you’re building a relationship with someone who understands your area and stands behind their work.
In short, while DIY deck or pergola projects may seem tempting, hiring a local contractor offers superior safety, quality, efficiency, and long-term value. It’s an investment in both your home and your peace of mind.