Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
Deal.ai › Therma-Tru
Therma-Tru
Therma-Tru Smooth-Star Fiberglass Prehung Front Door, 36 in. x 80 in., Left-Hand Inswing

Therma-Tru Smooth-Star Fiberglass Prehung Front Door, 36 in. x 80 in., Left-Hand Inswing

Best price now

$1,849.00at Lowe'sObserved at 12:37 PM

Prices are checked against each store and labelled with when.

Visit Lowe's

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Our take on the Therma-Tru Smooth-Star Fiberglass Prehung Front Door, 36 in. x 80 in., Left-Hand Inswing

This is a 36 in. x 80 in. prehung fiberglass front door from Therma-Tru's Smooth-Star line, Emerson two-panel design with a 15-lite divided decorative glass insert and zinc caming. It comes painted navy with PrismaGuard paint, set in a composite frame with an adjustable bronze sill and ball-bearing hinges, and is Energy Star rated with an insulating core. The glass is triple-pane tempered, and the door is rated to DP-50 (up to 167 mph) and DP-55 in HVHZ areas. The best new price is $1,849 at Lowe's as of November 8, 2026, the only new price tracked.

Best forFront entry replacement on a standard 36 in. openingCoastal or high-wind zones needing DP-50/DP-55 ratingsBuyers who want a factory-painted door, not a primed slabEnergy-conscious homes wanting an Energy Star door
Pros
  • Fiberglass skin resists dents, rust and rot
  • Energy Star rated with an insulating core
  • Triple-pane tempered decorative glass
  • Wind rated to DP-50, and DP-55 in HVHZ areas
  • Prehung in a composite frame with adjustable sill
  • Factory painted navy with PrismaGuard finish
Cons
  • No handle or lockset included; bore only
  • Left-hand inswing only, so handing is fixed
  • Decorative divided-lite glass costs more than a solid door
  • Navy paint is a strong color choice for resale
  • Heavy prehung unit needs two people to set

Therma-Tru Smooth-Star Fiberglass Prehung Front Door, 36 in. x 80 in., Left-Hand Inswing prices at every store

  • Lowe'sNew

    In stock

    $1,849.00+ $79.00 shippingObserved at 12:37 PM
    Visit Lowe's

Therma-Tru Smooth-Star Fiberglass Prehung Front Door, 36 in. x 80 in., Left-Hand Inswing price history

Lowest price we've seen: $1,849.00 on Nov 8 at Lowe's. Tracked across 1 store since Nov 8.

From Lowe's

  • Fiberglass construction resists dents, rust and rot
  • Smooth-Star fiberglass with crisp, clean contours
  • Emerson glass with zinc caming, triple-pane tempered glass, Lowe's exclusive
  • PrismaGuard paint designed for Therma-Tru fiberglass doors
  • Composite door frame helps protect against moisture and rot
  • Ball-bearing hinges help keep the door aligned and operating smoothly
Materials
Fiberglass door with composite door frame; Emerson triple-pane tempered glass with zinc caming
Fit
Left-hand inswing; 36 in. x 80 in. door; 4-9/16-in jamb width
Guarantee
Backed by a lifetime limited warranty
Returns
Free returns; return in store or ship it back for free, eligibility rules apply
Shipping
Free shipping for MyLowe's members; excludes AK, HI or US territories

About the Therma-Tru Smooth-Star Fiberglass Prehung Front Door, 36 in. x 80 in., Left-Hand Inswing

Smooth Star Emerson 36-in x 80-in x 4-9/16-in Fiberglass Left-hand inswing Navy Painted Prehung Residential Insulating core Front Door

Specifications

Location
Front
Energy Star
Yes
Glass name
15 Lite 3Wx5H Divided LiteSource
Wind rating WBDR
up to 167 mph (DP-50)Source
Wind rating HVHZ
up to 175 mph (DP-55)Source
Handle Finish
N/A (no handle)
Caming Finish
Zinc
Painted
true
Prehung Door
true
Slab Door
false
Garage-to-House
false
Left-hand Inswing
true
Left-hand Outswing
false
Right-hand Inswing
false
Right-hand Outswing
false
Universal/Reversible Handing
false
Finish
Painted
Glass Style
Decorative glass
Fire Rated
false
Panel Type
2-panel
Primed
true
Collection Name
Emerson
Configuration
Single door
Core Type
Insulating core

Questions and answers

Is this door Energy Star rated?
Yes. Therma-Tru lists it as Energy Star qualified, with an insulating core and triple-pane tempered glass.
What wind rating does it carry?
Up to 167 mph (DP-50) in standard areas and up to 175 mph (DP-55) in High Velocity Hurricane Zones.
Does it come with a handle or lockset?
No. The door is bored and ready for a lockset and deadbolt, but the hardware is sold separately.
What does left-hand inswing mean here?
Hinges are on the left as you look at the door from outside, and it swings into the house. Handing is not reversible.
What size opening does it fit?
It is a 36 in. x 80 in. door in a 4-9/16 in. frame, sized for a standard residential front entry rough opening.
Is $1,849 a good price?
It is the only new price tracked, at Lowe's as of November 8, 2026. Compare it against other DP-50 fiberglass doors with decorative glass before deciding.
Where is the Therma-Tru Smooth-Star Fiberglass Prehung Front Door, 36 in. x 80 in., Left-Hand Inswing cheapest?
At Lowe's, for $1,849.00, as of our latest check.

Shoppers also compared

  • J
    JELD-WEN 36 in. x 80 in. Left-Hand Inswing Steel Prehung Front Door
    JELD-WEN 36 in. x 80 in. Left-Hand Inswing Steel Prehung Front Door
  • V
    Vdom Manux 8112 Front Exterior Prehung uPVC Door
    Vdom Manux 8112 Front Exterior Prehung uPVC Door
  • P
    Pella 36 in. x 80 in. Left-Hand Inswing Prehung Entry Door
    Pella 36 in. x 80 in. Left-Hand Inswing Prehung Entry Door
  • V
    VDOMDOORS Front Exterior Prehung Steel Door Deux 6683 Natural Oak
    VDOMDOORS Front Exterior Prehung Steel Door Deux 6683 Natural Oak
  • T
    Trimlite 3068LHISPSF5PSHK49161DB
    Trimlite 3068LHISPSF5PSHK49161DB
  • R
    Ronex 0162 Front Exterior Prehung Steel Door
    Ronex 0162 Front Exterior Prehung Steel Door
  • M
    Manux 8661 Matte Black Front Exterior Prehung Metal-Plastic Door Frosted Glass
    Manux 8661 Matte Black Front Exterior Prehung Metal-Plastic Door Frosted Glass
  • C
    Cynex 6777 Grey Stainless Inserts Front Exterior Prehung Steel Door
    Cynex 6777 Grey Stainless Inserts Front Exterior Prehung Steel Door

Stores we've priced the Therma-Tru Smooth-Star Fiberglass Prehung Front Door, 36 in. x 80 in., Left-Hand Inswing at

  • Lowe's deals and prices