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Therma-Tru Grid Entry 68-in 80-in x 6-9/16-in Fiberglass 3/4 Lite Right-hand Inswing Black Painted Prehung Front Door with Sidelights vs National Door Company 15-Lite Steel Prehung Door

Buy the Therma-Tru if you want a wide, sidelit entry that resists dents, rot and rust and comes painted black with an impact-rated aluminum frame. Buy the National Door Company steel door if you need a narrower 32-inch slab with a full 15-lite clear glass grid and a primed surface you plan to paint yourself. The Therma-Tru is the heavier, better-sealed exterior door; the National unit is a simpler primed steel door with less insulation story and a privacy rating of 0, so anyone can see straight through it.

  • Choose the Therma-Tru Grid Entry if you want a prefinished black fiberglass door with sidelights, an insulating core and an impact-rated frame.
  • Choose the National Door Company Z000754L if you need a 32-inch left-hand steel door with a 15-lite clear glass grid and a primed finish to paint.

Prices

  • Therma-Tru Grid Entry 68-in 80-in x 6-9/16-in Fiberglass 3/4 Lite Right-hand Inswing Black Painted Prehung Front Door with Sidelights: $2,171.04 at Lowe's (last seen Nov 8)
  • National Door Company 15-Lite Steel Prehung Door: $714.74 at Amazon (last seen Nov 8)
  • Difference: the National Door Company 15-Lite Steel Prehung Door is $1,456.30 cheaper than the Therma-Tru Grid Entry 68-in 80-in x 6-9/16-in Fiberglass 3/4 Lite Right-hand Inswing Black Painted Prehung Front Door with Sidelights at the latest prices (Nov 8)
Therma-Tru
Therma-Tru Grid Entry 68-in 80-in x 6-9/16-in Fiberglass 3/4 Lite Right-hand Inswing Black Painted Prehung Front Door with Sidelights

Therma-Tru Grid Entry 68-in 80-in x 6-9/16-in Fiberglass 3/4 Lite Right-hand Inswing Black Painted Prehung Front Door with Sidelights

$2,171.04at Lowe'sChecked Nov 8
See all prices and details
Visit Lowe's
Pros
  • Fiberglass skin resists dents, rot and rust
  • Insulating core and weatherstripping help with drafts
  • Sidelights add light and a wider entry look
  • Impact-rated aluminum frame
  • Comes painted black
Cons
  • Right-hand inswing only
  • Wide 68-in unit needs a large rough opening
  • Finish listed as both painted and unfinished, so confirm the surface
National Door Company
National Door Company Z000754L Steel Primed, Left Hand in-Swing, Prehung Front Door, 15 Lite External Grilles, Clear Glass, 32" x 80"

National Door Company 15-Lite Steel Prehung Door

National Door Company Z000754L Steel Primed, Left Hand in-Swing, Prehung Front Door, 15 Lite External Grilles, Clear Glass, 32" x 80"

$714.74at AmazonChecked Nov 8
See all prices and details
Visit Amazon

As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Clear 15-lite grid lets in a lot of light
  • Tempered, double-paned insulated glass

What separates them

Therma-Tru Grid Entry 68-in 80-in x 6-9/16-in Fiberglass 3/4 Lite Right-hand Inswing Black Painted Prehung Front Door with SidelightsNational Door Company 15-Lite Steel Prehung Door
Material and coreFiberglass skin over an insulating core; resists dents, rot and rustPrimed steel slab; no insulating core stated
Width and handing68-in unit with sidelights, right-hand inswing32-in slab, left-hand inswing, no sidelights
GlassDecorative glass in a 3/4 lite15-lite clear glass, double paned, tempered and insulated, privacy 0/10
FrameAluminum impact frame, 6-9/16-in jamb4-9/16-in primed finger-jointed frame
FinishBlack painted, listed as painted and unfinishedPrimed, ready to paint
Hardware prepReady for lockset and deadbolt; ASSA 2002 lock case2-1/8-in bore prep, 2-3/4-in backset, 3 satin nickel hinges
Weather sealingWeatherstripping and brickmould includedNot stated
InstallationPrehung, ready to installPrehung; rough opening 34 x 82.25 in

Price history

$4,494.97$714.74
Nov 8Nov 10
  • Therma-Tru Grid Entry 68-in 80-in x 6-9/16-in Fiberglass 3/4 Lite Right-hand Inswing Black Painted Prehung Front Door with Sidelights: lowest $2,171.04 on Nov 8 at Lowe's; $4,494.97 on Nov 10.
  • National Door Company 15-Lite Steel Prehung Door: lowest $714.74 on Nov 8 at Amazon.

Prices at every store

Therma-Tru Grid Entry 68-in 80-in x 6-9/16-in Fiberglass 3/4 Lite Right-hand Inswing Black Painted Prehung Front Door with Sidelights

  • Lowe'sNew

    In stock

    $4,494.97Free shippingChecked 10 h ago
    Visit Lowe's
  • Lowe'sNew

    Availability unknown

    $2,171.04+ $79.00 shippingChecked Nov 8
    Visit Lowe's

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Prices and history →

National Door Company 15-Lite Steel Prehung Door

  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $714.74Free shippingChecked Nov 8
    Visit Amazon
Prices and history →

Specs compared

SpecTherma-Tru Grid Entry 68-in 80-in x 6-9/16-in Fiberglass 3/4 Lite Right-hand Inswing Black Painted Prehung Front Door with SidelightsNational Door Company 15-Lite Steel Prehung Door
GlassYesClassic clear glass is double paned, tempered a…
ColorBlackPrimed
Door HandingRight-hand inswingLeft Hand In-Swing
MaterialFiberglassSteel
Lock CaseASSA 2002—
HangR—
Width (")68.0—
Type of GlassDecoration Glass—
Height (")80.0—
StyleClassic, Modern—
DoorRight—
Door MechanismSwing—
Show all 36 specsShow fewer specs
SpecTherma-Tru Grid Entry 68-in 80-in x 6-9/16-in Fiberglass 3/4 Lite Right-hand Inswing Black Painted Prehung Front Door with SidelightsNational Door Company 15-Lite Steel Prehung Door
Size36-in x 80-in (common)—
Thickness6-9/16-in—
Door TypePrehung, Entry Door—
Number Of PanelsFlush panel—
Installation LocationExterior, Back door, Prehung, Residential—
Installation TypePre-hung and ready to install—
Core MaterialInsulating core—
Metal MaterialAluminum (impact frame)—
Frame MaterialAluminum (impact frame)

Questions and answers

Which is better for a front entry with light?
The Therma-Tru gives you sidelights plus a 3/4 lite in one unit. The National door gives more glass area per leaf with its 15-lite grid but no sidelights.
Which lasts longer?
Fiberglass resists dents, rot and rust better than steel, so the Therma-Tru holds up longer in wet climates. Steel doors last well if the paint stays intact and dents are repaired.
Is the National door private?
No. Its privacy rating is 0 out of 10, so the clear glass is fully visible from outside. The Therma-Tru's decorative glass offers more obscurity.
Can I use either on a back door?
Both are prehung inswing entry doors and work on a back door. Check handing and rough opening first: the Therma-Tru is right-hand and much wider.
Is the Therma-Tru worth stepping up to?
Yes if you want sidelights, an insulating core and an impact frame in one prefinished unit. Skip it if your opening is narrow or you need a left-hand swing.

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More comparisons

  • The Porch 36 x 80 In. Fiberglass Entry Door Slab, Modern 4-Lite Frosted Glass Entry Door, Right Hand Inswing, White Finish vs Therma-Tru Grid Entry 68-in 80-in x 6-9/16-in Fiberglass 3/4 Lite Right-hand Inswing Black Painted Prehung Front Door with Sidelights
  • Prehung Grills Between Glass 18 Light Flush Glazed Fiberglass Entry Door System - Full Lite vs National Door Company Z000754L Steel Primed, Left Hand in-Swing, Prehung Front Door, 15 Lite External Grilles, Clear Glass, 32" x 80"
  • 36" x 80" Right-Hand Prehung Steel Entry Door with 15-Lite Internal Grille – Primed Exterior Door Unit vs National Door Company Z000754L Steel Primed, Left Hand in-Swing, Prehung Front Door, 15 Lite External Grilles, Clear Glass, 32" x 80"

Buying guides that pick them

  • Best prehung front entry doors with geometric brass rectangular lites
  • Best front entry doors with brass geometric glass lites
  • Best prehung front entry doors with brass geometric glass lites
  • Best prehung front entry doors with geometric brass grids
Primed surface takes paint cleanly
  • Standard 32-in width fits smaller openings
  • Bore and backset prep done at the factory
  • Cons
    • Steel can dent and rust if the finish is damaged
    • Privacy rating of 0 out of 10, so the glass is fully see-through
    • No insulating core stated
    • Narrower 4-9/16-in frame limits wall thickness
    • No weatherstripping or brickmould listed
    —
    Included AccessoriesWeatherstripping, brickmould—
    Door ConfigurationSingle door—
    DurabilityResist rust, Resist dents, Resist rot—
    Finish TypePainted, Unfinished—
    Hardware TypeReady for lockset and deadbolt—
    Hardware MaterialBlack nickel (sill finish)—
    Glass MaterialTempered glass—
    Energy EfficiencyInsulating core—
    Door size—32"x80"
    Unit dimension—33.5"x81.75"
    Suggested rough opening—34"x82.25"
    Frame—4-9/16" Primed Finger-Jointed Frame
    Hinges—3 Satin Nickel Hinges
    Bore prep—2-1/8" Entry/Deadbolt Bore Prep
    Backset—2-3/4" Backset