At a Glance

Finish: Unfinished

Material: Fiberglass

Privacy Rating: 2

Handing: Left-hand inswing

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Therma-Tru Fiber Classic Entry Door 36-in x 80-in x Fiberglass Left-hand inswing Unfinished Prehung Residential Insulating core Front Door

Name: Therma-Tru Fiber Classic Entry Door 36-in x 80-in x Fiberglass Left-hand inswing Unfinished Prehung Residential Insulating core Front Door
Brand: Therma-Tru
SKU: 5014708797
Rating: 5 (17 reviews)

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Handing: Left-hand inswing

Left-hand inswing

Right-hand inswing

Brickmould Included: Yes

Yes

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Engineered to last longer, Therma-Tru fiberglass doors resist dents, rust and rot
Smooth-Star fiberglass doors feature crisp, clean contours, making them more attractive and durable to steel
Flush-glazed decorative glass eliminates the need for a lite frame, providing a clean, seamless appearance; Lowe's Exclusive
Door features a smooth surface that is primed and ready to paint, offering endless possibilities to create the look you want
Composite door frame helps protect your door from moisture and rot
Ball-bearing hinges help your door stay aligned and operating smoothly
Durable low-maintenance fiberglass is built for long-term performance; Backed by a lifetime limited warranty for peace of mind
Pre-hung and ready to install for your convenience with options for right- and left-handed entries

General
Handle Finish	N/A (no handle)	Panel Type	Flush
Painted	No	Primed	No
Prehung Door	Yes	Collection Name	Entry Door
Slab Door	No	Color/Finish Family	White
Left-hand Inswing	Yes	Configuration	Single door
Left-hand Outswing	No	Core Type	Insulating core
Right-hand Inswing	No	Glass Insulation	Triple-pane
Right-hand Outswing	No	Handing	Left-hand inswing
Universal/Reversible Handing	No	Lockset Bore	Ready for lockset and deadbolt
Finish	Unfinished	Sill Finish	Black nickel
Glass Style	Decorative glass	Sill Type	Adjustable
Material	Fiberglass	Manufacturer Color/Finish	None
Fire Rated	No	Hinge Location (Exterior View)	Left side

Dimensions
Common Width (Inches)	36	Rough Opening Height	82
Common Height (Inches)	80	Rough Opening Width	38.25
Common Depth (Inches)	4.5625	Actual Height	81.5
Common Size (W x H)	36-in x 80-in	Jamb Width (Inches)	4.5625
Weight (lbs.)	100	Actual Depth (Inches)	4.5625
Actual Width	37.5

Features
Weatherstripping Included	Yes	Locking System Included	No
Privacy Rating	2	Door Style Traditional	No
Brickmould Included	Yes	Door Style Coastal	No
Handle(s) Included	No	Door Style Farmhouse	No
Impact Resistant Glass	No	Back Door	Yes
3-Point Locking System	No	Stained	No
Door Style Victorian	No	Unfinished	Yes
Door Style Modern	Yes	Commercial/Residential	Residential
Door Style Craftsman	No	Impact Resistance	No
Door Style Rustic	No	Lowe's Exclusive	Yes
Door Style Mid Century	Yes	Glass Caming	Yes
Door Style Contemporary	No	Solar Heat Gain Coefficient (SHGC)	0.3
Glass Shape	Full lite

Certifications
CA Residents: Prop 65 Warning(s)	Prop 65 WARNING(S) -	ENERGY STAR Certified Northern Zone	No
ENERGY STAR Certified South/Central Zone	No	ENERGY STAR Certified North/Central Zone	No
ENERGY STAR Certified Southern Zone	No	U Value	0.28

Warranty
Warranty	Limited lifetime

Compatibility
For Use with Mobile Homes	No

Miscellaneous
Sub-Brand	Fiber Classic	UNSPSC	30171500

Check out the Best Selling Front Doors on Lowes.com

Review

5 out of 5

17 Reviews

4 Star

3 Star

2 Star

1 Star

88% Recommend this product

Ratings may include incentivized customer reviews.

17 Customer Reviews

Sort By

Great replacement door

Quality product, will not rust like the steel door it replaced

Mr improvementMay 9, 2026
From Fiber Classic Entry Door 36-in x 80-in x Fiberglass Right-hand inswing Unfinished Prehung Residential Insulating core Front Door Verified Purchaser

Was this Review Helpful ?

Worth the buy!

Would Recommend

I love this door. It lets so much light in and really brightens our mudroom. The glass is not totally clear so it does offer privacy.

HC486March 9, 2026
Verified PurchaserIncentivized

Was this Review Helpful ?

Very nice

Would Recommend

It’s not as nice as a wooden door, but fiberglass is much more affordable and durable! I bought this door to have installed on my newly renovated sunroom. It is beautiful and seals out cold air extremely well. The glass is a great combination of decorative cut glass that looks nice, and see through glass that allows us to see our backyard.

EricNovember 27, 2025
From Fiber Classic Entry Door 36-in x 80-in x Fiberglass Right-hand inswing Unfinished Prehung Residential Insulating core Front Door Verified Purchaser

Was this Review Helpful ?

The purchase was a nightmare from start to finish.

Would Not Recommend

The door is very nice, the sales associates made the whole ordeal a nightmare. Even calling the day of delivery and wanting more money despite having a signed contract. They tried to extort more money or installer would not be out. The manager said he would call me back but of course never heard from him.

Lm 280September 25, 2025
From Smooth Star Entry Door 36-in x 80-in x 4-9_SLASH_16-in Fiberglass Left-hand inswing Unfinished Prehung Residential Insulating core Front Door Verified Purchaser

Was this Review Helpful ?

Door hang

Would Recommend

Beautiful easy to install

RayjSeptember 15, 2025
From Fiber Classic Entry Door 36-in x 80-in x Fiberglass Right-hand inswing Unfinished Prehung Residential Insulating core Front Door Verified Purchaser

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/66c7365c-dcc6-5013-b2a6-eba30bc90f32

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/e2b10218-9331-5769-bbfa-d462de697961

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		Name	Current Item Therma-TruFiber Classic Entry Door 36-in x 80-in x Fiberglass Left-hand inswing Unfinished Prehung Residential Insulating core Front Door
		Ratings	17
		Material	Fiberglass
		Configuration	Single door
		Core Type	Insulating core
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70	151	151	70	139	151	3	1	70
Fiberglass	Fiberglass	Fiberglass	Fiberglass	Fiberglass	Fiberglass	Fiberglass	Fiberglass	Fiberglass
Single door	Single door	Single door	Single door	Single door	Single door	Single door	Single door	Single door
Insulating core	Insulating core	Insulating core	Insulating core	Insulating core	Insulating core	Solid core	Solid core	Insulating core