First, Understand What the Thickness Number Means

Vinyl siding thickness is commonly expressed as a decimal measurement in inches.

For example:

The safest way to discuss thickness is to use the current manufacturer's specification for the exact siding product and profile being quoted.

Manufacturers commonly identify these measurements as nominal thickness.

Reference: Suburban Wholesale — What Does .046 Vinyl Siding Thickness Mean?

Use Real Products Instead of Generic “Good, Better, Best” Claims

Gentek's current product lineup provides an excellent real-world demonstration because several product lines use different nominal wall thicknesses.

Gentek's product directory identifies those thicknesses across these product families, while the individual product pages describe additional features beyond thickness.

Reference: Gentek Building Products — Product Directory

The .040 vs. .046 Demonstration Is Especially Easy to Understand

The difference between .040 inch and .046 inch is .006 inch.

That sounds tiny.

But mathematically, .046 inch is 15% thicker than .040 inch when the nominal thicknesses are compared directly.

Be careful with what you say next.

Performance does not work that way.

Thickness is one measurable difference. Locking design, nail hem, profile geometry, material formulation, wind testing, wall preparation, installation, and warranty also matter.

Reference: Suburban Wholesale — .040 vs. .046 Vinyl Siding: What's the Real Difference?

Demonstration #1: The Flex Test

Give the homeowner two short siding samples.

Have them hold each sample at approximately the same location and gently flex it.

Ask:

Then explain the manufacturer's specifications.

With Gentek Sequoia Select, for example, Gentek describes its .046-inch horizontal panel construction as providing increased rigidity for straight, smooth walls.

Reference: Gentek — Sequoia Select Extended Length Vinyl Siding

Don't Abuse the Flex Test

The goal is not to fold the competitor's siding in half or create a carnival trick.

Different siding profiles have different shapes, butt depths, and geometries. Those design differences can affect how a loose sample feels when you bend it.

Use comparable samples whenever possible.

You want an honest comparison—not a rigged demonstration.

Demonstration #2: Let the Homeowner Feel Panel Body

Instead of only flexing the samples, hand them to the homeowner one at a time.

Ask them to notice:

• How substantial each panel feels
• How readily it flexes
• The depth of the profile
• The nail hem
• The locking system
• The surface texture

This turns a number on a specification sheet into something physical.

Demonstration #3: Compare .042 and .046

Not every comparison needs to involve the lightest and heaviest products.

Gentek Concord provides a useful step-up comparison because Gentek specifies a .042-inch nominal thickness and describes the construction as providing rigidity for straight, smooth walls.

Place it beside Sequoia Select .046.

Then explain:

“Both are vinyl siding. What we're comparing is how the products are constructed and where the manufacturer positions the additional value.”

Reference: Gentek — Concord Vinyl Siding

Demonstration #4: Compare .044 and .046

This is an even better demonstration for homeowners considering premium products.

Gentek Signature Supreme is currently specified at .044-inch nominal thickness.

Gentek also pairs that panel with a full-roll nailing hem and its locking system.

Sequoia Select horizontal siding moves to .046 inch and adds its own full-roll nailing hem, Advantage Lock system, and 3/4-inch lap.

Now the conversation becomes:

References: Gentek Signature Supreme and Gentek Sequoia Select

Demonstration #5: Use a Digital Caliper—Carefully

A digital caliper can be a useful visual aid if you understand what you are doing.

It lets homeowners see just how small a thousandth of an inch actually is.

However, do not turn your field measurement into a claim that contradicts the manufacturer's specifications.

Siding manufacturers publish nominal wall thicknesses, and standardized manufacturing tolerances and measurement procedures apply.

Your caliper should be an educational prop—not your personal product-certification laboratory.

Use the manufacturer's current published specification as the authoritative product thickness.

An Easy Way to Explain “Nominal”

Homeowners may ask why your caliper does not display exactly .0460 at every place you touch the sample.

Explain it simply:

That answer is accurate, professional, and defensible.

Demonstration #6: Show the Nail Hem Immediately After Thickness

This may be the most important part of the demonstration.

If you stop after thickness, you accidentally teach the homeowner that thickness is the entire product.

Instead, say:

Then point to the nail hem.

Gentek identifies a full-roll nailing hem on both Signature Supreme and Sequoia Select. Sequoia Select also uses the Advantage Lock system to connect adjoining courses and enhance panel rigidity and stability.

References: Gentek Signature Supreme and Gentek Sequoia Select product specifications.

Demonstration #7: Lock Two Panels Together

Next, connect two pieces of siding.

Let the homeowner see how one course engages the next.

Now you can explain:

• The thickness of the panel
• The rigidity of the shape
• The lock design
• The nail hem
• How all of those features work together

You've moved the conversation from “Which plastic is thicker?” to “How is the siding system designed?”

Do Not Say Thicker Siding Cannot Blow Off

Thickness can contribute to panel body and rigidity, but it does not independently establish the wind resistance of a complete siding system.

Wind performance can also depend on:

• Locking design
• Nail hem
• Fastener type
• Fastener spacing
• Wall substrate
• Building configuration
• Installation
• The tested product assembly

Suburban Wholesale's contractor guidance similarly notes that thickness contributes to wind performance but does not replace locking-system design or correct installation.

Reference: Suburban Wholesale — How Vinyl Siding Thickness Affects Wind Resistance

Do Not Say .046 Siding Will Never Look Wavy

This is another bad sales claim.

A heavier panel can provide more body and rigidity, but it cannot repair:

• Bowed framing
• Damaged sheathing
• An uneven substrate
• Improper fastening
• Incorrect expansion clearances
• Poor wall preparation

Gentek describes Sequoia Select's .046-inch construction as providing superior rigidity for straight, smooth walls, but the siding still has to be properly installed over a properly prepared surface.

Reference: Suburban Wholesale — Why Heavier Vinyl Siding Panels Stay Straighter

Don't Call .040 “Junk”

This is where many salespeople lose credibility.

A thinner product can still be a legitimate siding option within its intended market position.

If the homeowner has a budget-sensitive project, rental property, short ownership horizon, or simply prefers the value option, insulting the lower-priced product does not help them make a better decision.

Explain the difference without insulting the choice.

A much better approach is:

Thickness Should Be One Chapter of the Presentation

A homeowner should leave your appointment understanding that product quality is multidimensional.

After demonstrating thickness, discuss:

1. Panel rigidity
2. Nail-hem construction
3. Locking system
4. Profile depth
5. Texture
6. Color selection
7. Fade technology
8. Manufacturer warranty
9. Installation requirements
10. Your workmanship warranty

Gentek's Sequoia Select demonstrates this point particularly well. Its .046-inch horizontal construction is paired with a full-roll nailing hem, Advantage Lock system, 3/4-inch lap height, cedargrain texture, extended-length options, and published wind-load testing.

Reference: Gentek — Sequoia Select Product Features

Use Thickness to Explain Why Estimates Are Different

Suppose your customer says:

Do not immediately discount.

Ask:

“What exact siding product did they quote?”

Then compare:

• Manufacturer
• Product line
• Nominal thickness
• Nail hem
• Lock
• Profile
• Accessories
• Housewrap
• Insulation
• Installation scope
• Warranty

“Vinyl siding” is a product category—not a product specification.

Use the Homeowner's Existing Siding as Part of the Lesson

During your exterior inspection, gently point out what they currently have when it can be identified.

Then at the kitchen table, say:

The demonstration is immediately more relevant because the homeowner is comparing the sample with an exterior they already know.

A 3-Minute Kitchen-Table Thickness Demonstration

The Exact Words You Can Use

That's a Better Sales Conversation

Notice what you did not say:

• “The other siding is garbage.”
• “This will never blow off.”
• “This will never warp.”
• “This is 15% better.”
• “You'd be crazy not to upgrade.”

You demonstrated a measurable difference and gave the homeowner control over the buying decision.

Add Insulated Siding to the Demonstration

Once the homeowner understands panel thickness, you can introduce another dimension:

What happens when the panel is supported from behind?

Use a contoured siding-insulation sample behind the vinyl panel.

Let the homeowner press on:

• A conventional vinyl siding sample
• A heavier premium vinyl panel
• A siding panel with contoured foam support

Now they can feel three different approaches rather than merely listening to descriptions.

Then Show Composite Cladding

This is where your demonstration can become even stronger.

After comparing several vinyl products, put an ASCEND Composite Cladding sample on the table.

Say:

You are not forcing the upgrade.

You are establishing yourself as the contractor who brings choices.

Thickness Is a Great Teaching Tool Because Homeowners Understand It

Many siding specifications are difficult to visualize.

Thickness is different.

It is:

• Measurable
• Easy to explain
• Easy to compare
• Easy to feel
• Easy to demonstrate

That makes it an excellent gateway into a broader product conversation.

But Don't Build Your Entire Sale Around One Number

This is the most important lesson in the article.

If your complete sales pitch is:

“Ours is .046 and theirs is .040.”

your presentation is too shallow.

You should be building value around:

• Product construction
• Installation knowledge
• Wall preparation
• Housewrap
• Flashing
• Accessories
• Colors
• Design
• Manufacturer warranty
• Workmanship warranty
• Service after the sale

Thickness should open the product conversation. It should not be the entire product conversation.

Questions to Ask the Homeowner After the Demonstration

Notice that none of those questions forces a decision.

They move the homeowner deeper into the comparison.

Build a “Thickness Ladder” for Your Sales Kit

A powerful contractor demo kit can contain four labeled corner cuts:

Label each sample with the exact manufacturer and product line.

Do not carry anonymous scraps and make unsupported claims about what they represent.

Suburban Wholesale Can Help You Build the Demonstration

Suburban Wholesale & Supply works with siding contractors throughout Eastern Iowa and Western Illinois and can help contractors compare Gentek siding products, profiles, colors, accessories, and manufacturer specifications.

The Suburban Wholesale Siding Sales Academy approach is simple:

Don't just hand the homeowner an estimate. Give them enough product knowledge to understand the estimate.

Stop into the Davenport showroom and ask about samples you can use to build a good-better-best siding presentation.

Reference: Suburban Wholesale Contractor's Guide to .046 Vinyl Siding Thickness

The Bottom Line: How Should You Demonstrate Vinyl Siding Thickness?

Put actual products in the homeowner's hands.

Show the manufacturer's nominal thickness specifications.

Let them feel the difference in panel body and rigidity.

Then immediately expand the demonstration to the nail hem, locking system, profile, installation, and warranty.

Do not claim that the thickest product automatically wins every performance category.

And do not insult value-oriented siding simply because you want to sell an upgrade.

A strong siding salesperson does not tell the homeowner that one panel is better. They demonstrate the differences, explain why those differences may matter, show the price options, and let the homeowner decide what level of siding makes sense for their house.