Annual Hardwood Deck Inspection Checklist

Introduction

A well-built hardwood deck is a long-term investment. Ipe, Cumaru, and other tropical hardwoods can last 25–75+ years — but only with proper annual care and inspection. This checklist helps homeowners and contractors identify issues early, before small problems become structural failures.

We recommend conducting a thorough inspection every spring, before peak-use season begins.

Key Takeaway: An annual inspection takes less than an hour and can prevent serious safety hazards and expensive structural repairs.

Structural Checklist

Ledger Board

The ledger board — where the deck attaches to the house — is the most critical component of any attached deck and the leading cause of deck collapse failures.

• Check for rot, soft spots, or discoloration
• Verify lag bolts are not corroded and are fully seated
• Inspect flashing — it must direct water away from the house
• Look for gaps between ledger and house wall

Posts & Footings

• Push and pull each post to check for movement
• Inspect post bases for corrosion
• Check that posts are plumb
• Look for cracks or heaving in footings
• Posts should never be in direct ground contact

Beams & Joists

• Probe beams and joists with a screwdriver — soft spots indicate rot
• Look for sagging between supports
• Check joist hangers for corrosion
• Inspect all blocking and bridging

Surface & Decking Checklist

• Walk every board — bouncing or flex indicates structural issues below
• Look for cracked, split, or severely cupped boards
• Check for protruding fastener heads (trip hazard)
• Inspect end grain for deep checking
• Note boards with significant cupping or warping

Note on Hardwood Checking: Surface checking in Ipe is normal and does not indicate structural failure. End-grain checks more than 1/3 of board thickness should be monitored.

Railing & Stair Checklist

Railing failures cause many deck injuries. Building codes require railings to resist 200 lbs of lateral force.

• Grab and shake each post — zero movement is the standard
• Check post base connections
• Test all balusters for security
• Measure baluster spacing — must be less than 4 inches
• Check rail height: 36" minimum (under 30" deck height), 42" minimum (30" and above)
• Inspect stair stringers for rot or cracks
• Verify consistent riser heights

For replacement stair treads, see our full selection.

Hardware & Finish Checklist

• Inspect all visible fasteners for corrosion
• Look for rust staining on the deck surface
• Test hidden fastener clips if applicable
• Check if the finish still beads water — if not, it's time to re-oil
• Look for mold, mildew, or areas holding standing water

See our full maintenance guide for cleaning and finishing instructions.

When to Call a Professional

Stop using the deck and consult a licensed contractor if you find:

• Soft or rotted posts, beams, or joists
• Any post that moves when pushed
• Ledger board rot or separation
• Multiple corroded joist hangers
• Visible structural deflection

FAQ

How often should I inspect my hardwood deck?

At minimum, once per year — ideally in spring before peak use. Also inspect after severe storms.

Is surface checking in Ipe dangerous?

Surface checking is normal and cosmetic in tropical hardwoods. Your safety concern should focus on structural components — posts, beams, joists, and the ledger board.

How long do hardwood decks last?

With proper maintenance, Ipe decks last 25–75+ years. The structural framing typically determines the actual lifespan.