brilliance fiberglass single door, brown, decorative glass, 3/4 view

Brilliance fiberglass single entry door, dark wood grain finish with decorative geometric-patterned glass, installed on a craftsman-style home exterior with stone pillars and lantern sconces

Brilliance Fiberglass Single Entry Door

SKU: BRILDRFBGENT3680RHI

$1,299.99

Shipping calculated at checkout.

Size: 36" x 80"

36" x 80"

Swing: Right Hand

Right Hand Left Hand

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Introducing the Brilliance Fiberglass Door - the perfect blend of modern style and durability! Made with smooth dark brown fiberglass and adorned with stunning deco glass, this door will elevate the look and feel of your home. Choose from a double door or a single with sidelights for added charm and customization. Upgrade your home's entrance with Brilliance!

Brilliance Fiberglass Single Entry Door

$1,299.99

What makes this fiberglass door exceptional:

Fiberglass door construction feature icon

Fiberglass Build

Polyurethane core wrapped in a textured fiberglass skin — looks like wood, behaves like steel.

Dent Resistant

Rigid impact-grade surface. Door bumps from move-ins, kids, and pets don't leave marks.

Rot-Resistant

Fiberglass doesn't absorb water. Pest-resistant, mildew-resistant, never needs re-sealing.

Energy Efficient

Polyurethane core insulates about 4x better than wood.

Limited Lifetime Warranty

Covered for the life of the home — including the wood-grain texture.

Mold

Fiberglass skins molded — woodgrain or smooth.

Core

Polyurethane foam core poured in.

Bond

Skins bonded to a solid frame.

Glaze

Low-E glass lites set.

Finish + hang

Primed or pre-finished, pre-hung.

Fiberglass Doors FAQ

Does a fiberglass door really look like wood?

Yes — the skin is embossed from a real mahogany or oak slab, so the grain depth, the rays, and the figure all read as real. Most visitors can't tell unless they touch it.

Will the finish fade in southern sun?

No. Modern fiberglass finishes use UV stabilizers that hold color for 15+ years even in direct south-facing exposure. Wood doors don't do this without re-staining every 3–5 years.

Can I refinish or repaint a fiberglass door?

Yes. Pre-finished doors can be lightly sanded and re-stained or painted with exterior-grade enamel. Primed-to-paint doors take any paint.

Is fiberglass as energy-efficient as wood?

More efficient. The polyurethane core insulates about 4× better than solid wood — R-value around 5–6, versus about 2 for wood.

How long will a fiberglass door last?

30+ years. The fiberglass skin doesn't rot, crack, or splinter. The biggest failure mode is hardware wear, not the door itself.

Can I use a fiberglass door without an overhang?

Yes. Unlike wood doors, fiberglass doesn't need a covered entry. Direct rain and sun are fine.

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Measuring guide

How to Measure Your Door

You'll need a tape measure, pencil, paper and a phone for photos. Record inches and fractions, and keep the tape straight.

Can't see the studs or subfloor? The old frame, sill or flooring may hide them. Have an installer confirm those dimensions before you order. A prehung unit includes the slab and frame, so slab size, unit size and rough-opening size are all different.

Measuring a double door slab's width at top, middle and bottom and height at left, center and right

Measure the door slab

Each moving leaf is a slab, so measure both. Check the width at the top, middle and bottom, and the height at the left, center and right. Write down the smallest width and height.
Measure each slab on its own. Leave out the frame and trim.

Top-down diagram of measuring door jamb depth between interior and exterior trim

Measure the jamb depth

Open the door to see the jamb (the door frame). Measure from the back of the interior trim to the back of the exterior trim. That's the depth through the wall.
Leave out the trim itself and record the exact depth.

Rough opening around a prehung door unit, measured from the wall stud, not the frame

Find the rough opening

The rough opening is the space in the wall that holds the entire prehung door unit. The interior trim may need to come off so you can see the framing around the old frame. Measure from the wall framing, not the existing door frame.
If the framing is hidden, have an installer verify it.

Measuring rough opening width stud to stud at top, middle and bottom

Measure the opening width

Measure the full opening between the studs at the top, middle and bottom, from inside edge to inside edge. Keep the tape level.
Use the smallest of the three readings.

Measuring rough opening height from top of subfloor to underside of header

Measure the opening height

Measure from the top of the subfloor up to the underside of the header at the left, center and right. Keep the smallest reading.
Don't measure from the sill or finished flooring.

Double door with active slab swung open to check handing and swing direction

Check before ordering

Note which slab opens first, which side it's hinged on and whether it swings in or out. Take photos from both sides, and check our Door Swing Guide to pick your handing.
Compare your measurements with this door's unit size and required rough-opening size. Include sidelights or a transom in the full opening, and ask an associate or installer to confirm the fit.
Don't just add a standard 2 inches to every door.