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Make room for the right door.
Your opening, frame and swing all matter. Gather the measurements, then confirm the exact model before you order.
Masonite
Masonite 36-in x 80-in Steel Universal Reversible Primed Slab Front Door with Insulating Core
$186.00 USD
Price for the selected option. Shipping and taxes calculated at checkout.
SKU 740805
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What to measure before ordering
- Identify what you are replacing.
A slab is the door panel. A prehung unit includes a frame. Record whether you need a slab or a complete unit, and check exactly what the selected product includes.
- Measure the opening and the frame.
Record the width and height in several places, plus the wall or jamb depth. Keep rough-opening measurements separate from the existing door's dimensions. Include the units with every measurement.
- Confirm the swing and the exact model.
Note which side the hinges sit on, the side you are viewing from, and whether the door swings toward or away from you. Confirm handing terminology and required clearances against the manufacturer's documentation for the selected SKU.
These notes are a planning aid. Product names, photos and shared descriptions do not confirm fit. Check the selected SKU, manufacturer specifications and installer measurements before ordering.
Ask the Super Arbor teamProduct details
Catalog information may describe more than one option. Confirm the specifications for your selected SKU; the store's current shipping, returns and order terms apply.
36x80 Steel Primed 6-Panel Exterior Slab Door
This Masonite 36-in x 80-in steel slab front door features a traditional 6-panel design on a primed, smooth surface ready for paint. The polyurethane foam insulated core enhances energy efficiency, while the door comes double-bored for easy hardware installation.
Key Features:
- Energy-Efficient Core: High-performance polyurethane foam insulation helps reduce energy loss
- Ready to Paint: Baked-on primer resists rust and corrosion for a smooth, paint-ready finish
- Secure Installation: Double-bored and reinforced steel lock plate for added security (hardware sold separately)
- Durable Steel Construction: 1-3/4-in thick steel slab built for residential entry use
- Universal Handing: Reversible slab fits left- or right-hand configurations
Specifications Table:
| Specification | Details |
|---|---|
| Common Size (W x H) | 36-in x 80-in |
| Actual Width (Inches) | 35.75 |
| Actual Height (Inches) | 79 |
| Actual Depth (Inches) | 1.75 |
| Material | Steel |
| Finish | Primed (baked-on primer) |
| Color/Finish Family | White (primed) |
| Panel Type | 6-panel |
| Handing | Universal reversible |
| Slab Door | Yes |
| Prehung Door | No |
| Core Type | Insulating core (polyurethane foam) |
| Glass | No glass |
| Lockset Bore | Double bored; ready for lockset |
| Handle(s) Included | No |
| Weatherstripping Included | No |
| Configuration | Single door |
| Commercial/Residential | Residential |
| ENERGY STAR Certified | North/Central, Northern, South/Central, Southern zones |
| U-Factor | 0.14 |
| SHGC | 0.01 |
| Warranty | 20-year limited |
| Rough Opening Width (Inches) | 36.25 |
| Rough Opening Height (Inches) | 79.5 |
| Hardware Finish | Satin nickel (reference component) |
Frequently Asked Questions (FAQ):
Q: Is this door prehung?
A: No. It is a slab door only and does not include a frame or hinges.
Q: Can the door be trimmed to fit?
A: Trimming steel exterior doors is not recommended and will void the warranty.
Q: Is hardware included?
A: No. The slab is double-bored and ready for a handle set and deadbolt, which are sold separately.
Q: What are the actual dimensions?
A: Actual size is approximately 35.75 in W x 79 in H x 1.75 in D.
Q: Is it ENERGY STAR certified?
A: Yes, it carries ENERGY STAR certification across all climate zones.
Classic Curb Appeal, Elevated
This timeless six-panel steel door anchors a façade with crisp, architectural lines and a fresh, paint-ready canvas. I love the precision of the raised profiles—clean, confident, and quietly luxurious. Paint it a saturated charcoal or coastal blue, then pair with a satin nickel handle set and boxwood planters for instant sophistication. It’s a chic foundation piece that makes everyday entry feel decidedly upscale.
Upgrade your entry with enduring style and energy savings—choose this Masonite steel slab door today.