Face-Screw vs Hidden Deck Fasteners & Ipe Clips — Complete Guide

Understanding how to properly secure tropical hardwood decking is critical to long-term performance. This guide compares face-screwing, plugged installations, and hidden deck fasteners (including Ipe clips) for Ipe and similar exotic hardwoods.

Ipe is not pine. It's not composite. And it doesn't behave like treated lumber. The fastening method you choose has a direct impact on long-term stability, visual appearance, and how much movement your deck experiences over its lifespan.

Tropical hardwoods like Ipe are incredibly dense (often 3x denser than pressure-treated pine), naturally oily, and prone to seasonal dimensional change—especially in width. This means your fastening system must accommodate movement without allowing boards to cup, warp, or pull away from the substructure.

The wrong fastener—or the wrong installation technique—can cause splitting, surface staining from rust, and structural failure within just a few years. This page walks through the three core methods and explains when each one makes sense.

Why Tropical Hardwood Movement Matters

Unlike softwoods, Ipe and Cumaru have extremely high oil content and density. This creates unique challenges for fastening:

•Seasonal width change: A 6" wide Ipe board can expand or contract by 1/8" or more between wet and dry seasons
•Surface tension: When boards are face-screwed without room to move, they can cup or crack
•Pilot hole requirement: You cannot drive screws into Ipe without pre-drilling—the wood is simply too hard
•Corrosion risk: The tannins in Ipe react aggressively with steel fasteners, causing rapid rust and black staining

Why Many Clips Fail

Most "universal" hidden fasteners are designed for softwoods or composites. They don't have the holding strength or movement tolerance required for dense tropical hardwoods. This is why you'll often see Ipe decks installed with clips that have popped out, boards that have cupped away from the joists, or gaps that have opened up unevenly.

Three Fastening Methods Compared

Face-Screwing

What It Is

Screws are driven through the face of each board into the joist below. The screw head remains visible.

Pros

✓Strongest mechanical hold
✓Fastest installation
✓Easy to replace individual boards
✓Lower material cost

Cons

✗Visible screws on surface
✗Can restrict natural wood movement
✗Requires stainless steel to avoid staining

Best Practices

→Always pre-drill with correct bit size
→Use #8 or #10 stainless steel screws
→Two screws per joist intersection
→Set screws 3/4" from board edge minimum

Face-Screw with Plugs

What It Is

Screws are countersunk into the board face, then covered with wood plugs cut from the same species. Plugs are glued in and sanded flush.

Pros

✓Strong mechanical hold
✓Hides screw heads for cleaner look
✓Traditional boatbuilding aesthetic
✓Boards remain serviceable

Cons

✗Labor-intensive installation
✗Plugs can be visible (grain mismatch)
✗Still restricts some wood movement
✗Requires plug cutter and skill

Best Practices

→Cut plugs from scrap Ipe for color match
→Orient plug grain to match board
→Use marine epoxy or polyurethane glue
→Allow glue to fully cure before sanding

Hidden Fasteners

What It Is

Metal clips attach to the side of each board (often in a groove) and screw into the joist. No fasteners are visible from above.

Pros

✓Completely hidden from view
✓Allows controlled wood movement
✓Maintains consistent board spacing
✓Premium finished appearance

Cons

✗Higher material cost
✗Slower installation (especially grooved)
✗Not all clips work with tropical hardwoods
✗Individual board replacement more complex

Best Practices

→Use stainless steel clips rated for hardwood
→Order pre-grooved boards when possible
→Face-screw starter and end boards
→Verify clip tensioning before advancing

Why We Recommend Ipe Clips as the Best Hidden Deck Fastener

When customers ask us which hidden deck fastener to use, we recommend the Ipe Clip system for most residential and commercial deck applications. This isn't because we manufacture Ipe clips—we don't. It's because we've seen what works long-term with dense tropical hardwoods, and what doesn't.

Key Advantages of Ipe Clip

•Engineered for density: The clip design generates enough tension to hold dense hardwood without popping out
•Movement tolerance: Allows boards to expand and contract naturally without cupping or splitting
•Stainless steel construction: Won't corrode or react with Ipe's tannins
•Consistent gapping: Built-in spacers maintain uniform 3/16" gaps automatically
•Long track record: We've been installing decks with this system for over 15 years with minimal callbacks

Quick Comparison

Factor	Face-Screw	Plugged	Hidden Fasteners
Strength	Excellent	Excellent	Very Good
Appearance	Visible screws	Visible plugs	No visible fasteners
Movement Control	Restrictive	Restrictive	Allows natural expansion
Installation Speed	Fast	Slow	Moderate
Long-term Stability	Good with proper technique	Good with proper technique	Excellent
Recommended for Ipe	Budget/utility installs	Traditional aesthetic	Primary recommendation

Critical: Stainless Steel Is Not Optional

Ipe contains high levels of tannins—natural compounds that will aggressively corrode any non-stainless metal fastener. Using standard steel screws or galvanized hardware will result in rust staining, structural weakness, and premature failure.

Never Use:

Standard construction screws
Galvanized nails or screws
Coated deck screws (non-stainless)
Aluminum clips (insufficient strength)

Required Materials:

304 or 316 stainless steel screws
Stainless steel hidden fastener clips
Marine-grade hardware for railings
Stainless joist hangers if exposed

Why this matters: Even a single rusted screw can leave a permanent black stain that bleeds into the surrounding wood grain. In coastal or high-humidity environments, standard fasteners can begin showing rust within months. By the time you notice surface staining, the structural integrity of the fastener is already compromised.

How to Choose the Right System

Choose Face-Screw or Plugged If...

You're working with a tight budget and prioritize function over aesthetics
The deck is utilitarian (workshop, dock, commercial walkway)
You want the option to easily replace individual boards later
You prefer a traditional, hand-crafted look (plugged method)
Installation speed is critical and you're willing to sacrifice appearance

Choose Hidden Fasteners If...

You want a premium, seamless appearance with no visible fasteners
You're building a high-end residential or hospitality deck
Long-term stability and controlled wood movement are priorities
You want consistent board spacing with minimal layout effort
The deck will be barefoot-friendly (no screws to step on)

Need Help Choosing the Right Fastening System?

Our team can walk you through the options based on your specific project requirements, climate, and aesthetic goals.

Related Resources

Deck Installation Guide →

Complete guide to installing Ipe decking from start to finish

Wood Acclimation Guide →

Why acclimation matters and how to do it correctly

Ipe Wood Overview →

Learn about Ipe's properties and why it's ideal for decking

Ipe Clip System Details →

Deep dive into the Ipe Clip hidden fastening system