Hardwood Stair Treads: Species, Thickness, Profiles and Installation Guide | National Hardwood
Hardwood Stair Treads – Van Nuys CA

Stair treads that match your
floor exactly.

White oak, red oak, walnut, hickory – custom hardwood stair treads fabricated to your dimensions, thickness, and species from our Van Nuys shop. This guide covers every species, tread profile, prefinished vs unfinished, retrofit vs new build, California code, and how to match your existing hardwood floor perfectly.

7
Wood species available
3.5″
Max thick tread available at NHW
10″
Min tread depth – CA code
50yr
NHW expertise
White oak hardwood stair treads on staircase - warm natural finish, matching floor visible at top landing
Foundation

What are hardwood stair treads?

A stair tread is the horizontal board that forms the stepping surface of each stair. It is the part of the staircase your foot lands on with every step. Hardwood stair treads are fabricated from solid hardwood lumber – the same species used for hardwood flooring – and are dimensioned specifically for stair applications: deeper and thicker than standard flooring boards to provide structural integrity and a comfortable, safe stepping surface.

A complete stair assembly consists of treads (the horizontal surfaces), risers (the vertical boards between treads that close the front face of each step), stringers (the diagonal structural boards on each side that support the treads and risers), and nosing (the rounded or profiled front edge of each tread). Hardwood stair treads typically include an integral bullnose nosing profile that overhangs the riser by 3/4 to 1 inch.

Why hardwood specifically: Hardwood treads are the most durable, most visually refined, and most design-flexible choice for interior residential staircases. Hardwood treads can be matched to the hardwood floor at the landing for a seamless transition, stained or finished in any color, and refinished when worn. Carpet over plywood treads cannot be matched to the floor. LVP treads look thin and temporary. Hardwood is the only material that creates the fully designed staircase look most Southern California homeowners want in 2026.

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National Hardwood fabricates custom hardwood stair treads in any species, thickness, length, and profile from our Van Nuys shop. We stock hardwood flooring and stair treads in the same species so both can be matched and finished to the same specification from one source. Our in-house mill produces custom thick treads up to 3.5 inches – see our floating stairs guide for floating tread specifications.

1″
Standard tread thickness for conventional stairs
10″
Minimum tread depth – California code
3/4″
Standard bullnose nosing projection
36″
Standard tread width – minimum CA code

Wood Species

Hardwood stair tread species: the complete comparison

Species selection determines how the treads look when stained or finished, how durable they are under daily foot traffic, and whether they can be matched to the hardwood floor at the landing. Every species below is available in stair tread dimensions at National Hardwood.

Side-by-side display of five premium hardwood stair tread samples showing grain texture differences
Left to right: white oak (natural), red oak (natural), walnut (natural), hard maple (natural), hickory (natural). Each species has a distinct grain character and natural color that affects stain color and floor matching.
White Oak
1,360 lbf Janka hardness
Most requested 2026
Open grain, warm tone, accepts stain evenly in all color ranges. Best match for white oak floors. Natural finish with water-based clear coat is the most requested LA specification in 2026. Castle French White Oak available in 3.5 inch thick treads at NHW.
Red Oak
1,290 lbf Janka hardness
Stain or natural
Open grain with a warm reddish-pink undertone. Most forgiving species for staining. Best match for red oak floors. Warm brown and dark stain tones work exceptionally well. Most affordable hardwood tread option at NHW.
Walnut
1,010 lbf Janka hardness
Premium dark
Rich chocolate-brown natural color – rarely needs staining. Bold wavy grain. Best match for walnut floors. Creates a dramatic, luxurious staircase particularly with glass or cable railing. Premium price, unmatched natural beauty.
Hard Maple
1,450 lbf Janka hardness
Paint or clear coat
Hardest domestic species – exceptional wear resistance for high-traffic stairs. Tight grain, very light color. Does not accept stain evenly – use natural clear coat or paint. Best match for maple floors. Mid-range price.
Hickory
1,820 lbf Janka hardness
Character grain
Hardest species we stock. Dramatic natural contrast between light sapwood and dark heartwood. Best in natural or light stain to showcase the grain contrast. Rustic, bold character suits farmhouse and transitional styles.
Cherry
950 lbf Janka hardness
Natural deepens over time
Rich red-brown tone that deepens significantly over time with sun exposure. Already beautiful without staining. Best in natural or light stain. Creates a warm, elegant staircase in traditional and transitional interiors. Premium price.

Matching floating stair treads to your hardwood floor

The most common design goal in LA floating stair projects is a seamless visual connection between the hardwood floor and the stair treads. When the floor and treads are the same species and finished to the same specification, the staircase reads as an extension of the floor rather than a separate element. Because National Hardwood stocks both hardwood flooring and custom stair treads, we can match both from a single source and finish them to the same color in our showroom.

Floor SpeciesBest Tread MatchLanding NosingStain Approach
White oak naturalWhite oak – natural clear coatWhite oak – natural clear coatNo stain – water-based clear finish only
White oak warm honeyWhite oak – matching warm stainWhite oak – matching stainTest stain on tread sample first – match to floor color
Red oak medium brownRed oak – matching stainRed oak – matching stainDuraSeal Provincial or Minwax Special Walnut most common match
Red oak dark walnutRed oak – dark stainRed oak – dark stainMinwax Dark Walnut or Jacobean – test on tread first
Walnut naturalWalnut – natural clear coatWalnut – natural clear coatNo stain – no tone modification required
Engineered white oakWhite oak solid or hemlock in matching stainHemlock in matching stainMust test stain on solid tread to match engineered face veneer

Tread Profiles

Stair tread profiles: which nosing edge is right?

The nosing profile on the front edge of each tread is both a safety feature and a design choice. The profile determines the visual character of the step edge and must comply with California code requirements for nosing projection and radius.

Profile NameDescriptionBest ForCA Code Notes
Single bullnoseOne rounded front edge, square sides and back.Wall-to-wall staircases where the tread sides are against walls or closed stringersBullnose radius must be minimum 9/16 inch. Projection 3/4 to 1.25 inches.
Double bullnose (return)Both front edge and one side edge are rounded with a bullnose return.Open-sided staircases where one end of the tread is visible from the roomSame nosing requirements apply to both front and side bullnose edges
Square nose (no nosing)Completely flat front edge with 90-degree corner.Floating stairs and modern contemporary staircases with thick treadsIf no nosing used, minimum tread depth must be 11 inches instead of 10 inches
Eased edgeVery slight rounding on the front edge – not a full bullnose.Modern or transitional stairs where a full bullnose looks too traditionalCompliant if the eased edge meets the minimum radius requirement
Cove and beadDecorative profile on the underside of the nosing.Traditional Victorian and Colonial staircases visible from an open foyerProfile is on the underside – front edge still requires standard nosing compliance
Close-up comparison of a rounded single bullnose stair tread profile versus a contemporary square nose profile
Left: single bullnose profile – rounded edge with 3/4 inch overhang. Right: square nose profile – flat 90-degree edge used on contemporary floating stairs.

Prefinished vs Unfinished

Prefinished vs unfinished stair treads: which is right for your project?

This is the decision most buyers get wrong. The choice between prefinished and unfinished treads affects cost, installation timeline, final appearance, and how well the treads match the adjacent floor. There is no universally correct answer – the right choice depends on your project type.

Prefinished treads

Factory stained and sealed before delivery

  • Faster installation – no on-site finishing wait time
  • Factory finish is harder and more durable than site-applied finish
  • No fumes on-site – important for occupied homes
  • Color is consistent across all treads from the same batch
  • More expensive than unfinished
  • Matching to existing floor color requires sending a floor sample for factory color matching
  • Cannot be adjusted on-site if color is slightly off
Unfinished treads

Raw wood, stained and finished after installation

  • Can be stained on-site to match existing floor color exactly
  • Less expensive than prefinished
  • Finish can be adjusted during application until color matches
  • All surfaces finished together creates more unified appearance
  • Requires 2 to 3 day wait for stain and finish to cure before use
  • On-site fumes from stain and finish – home cannot be occupied
  • Best choice when exact floor color matching is the priority
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NHW recommendation for LA homes: When your goal is to match existing hardwood flooring exactly, unfinished treads are almost always the better choice. Bring a sample of your floor to our showroom and we will match the stain color on an unfinished tread sample before ordering. See our stains and finishes selection for California-compliant products we recommend for tread finishing.

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Prefinished floor problem: If your floor is a prefinished hardwood (factory-finished with aluminum oxide coating), matching it exactly with prefinished treads is very difficult. The micro-beveled edges and aluminum oxide coating on prefinished floors create a different surface appearance that off-the-shelf prefinished treads cannot match. In this situation, unfinished treads stained on-site give you the best chance of a close color match. Read our full guide on prefinished floors and curved stair nosing.


Retrofit vs New Build

Retrofit stair treads vs new build: what is different?

Retrofit installation means installing new hardwood treads over existing stairs – typically over old carpet or worn painted treads. New build means installing hardwood treads in a newly framed staircase. The preparation and tread specification differ significantly between the two approaches.

Retrofit installation: hardwood over existing stairs

Retrofit treads are designed to install on top of the existing plywood or pine sub-tread. They are typically 1/2 inch to 3/4 inch thick – thinner than new build treads – and sized to fit over the existing tread with a nosing that overhangs the existing riser. This approach avoids the structural work of removing the existing stair framing but requires that the existing treads are solid and level.

  • Existing treads must be structurally sound – no flex, no loose boards
  • Each existing tread must be measured individually – no two retrofit situations are identical
  • Nosing must account for the combined thickness of existing tread plus new hardwood tread plus any adhesive
  • Riser boards (if painting) must be done before treads are installed
  • Riser boards (if replacing with hardwood risers) must be cut carefully to fit between existing stringers

New build installation: hardwood treads on new framing

New build treads are installed on freshly framed stringers, typically at 1 inch thickness for conventional stairs or 1.5 inches and thicker for floating stairs. The stringers are built to the tread thickness specification – the tread thickness must be confirmed before stringer framing begins. This approach gives the most flexibility in species, thickness, and profile selection.

Old carpet being removed from residential stairs during a hardwood tread retrofit renovation
Existing carpeted stairs before retrofit hardwood tread installation
New white oak retrofit stair treads installed seamlessly over an existing plywood sub-tread framework
White oak retrofit treads installed over existing plywood sub-treads
Thick solid hardwood stair treads installed on freshly framed new construction timber stringers
New construction – 1 inch hardwood treads on newly framed stringers

California Code

California code requirements for stair treads

RequirementCA Code StandardPractical Meaning
Minimum tread depth10 inches measured nosing to nosingThe horizontal surface from front nosing edge to the back of the tread must be at least 10 inches
Tread depth without nosing11 inches if no nosing is usedFor square nose treads with no nosing projection, the tread must be 11 inches deep
Maximum riser height7.75 inches maximumThe vertical distance between tread surfaces cannot exceed 7.75 inches
Riser height variationMaximum 3/8 inch between any two risersAll risers on the same staircase must be within 3/8 inch of each other
Minimum stair width36 inches clearTread width must be minimum 36 inches between walls or handrails
Nosing projection minimum3/4 inch beyond riser faceBullnose must extend at least 3/4 inch past the face of the riser below
Nosing projection maximum1 and 1/4 inches beyond riser faceNosing cannot overhang more than 1.25 inches – creates trip hazard if exceeded
Tread surfaceSlip-resistant finish requiredTreads must have a non-slip finish. A satin or low-sheen finish meets this requirement.
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Riser height consistency is the most commonly failed inspection item: If your retrofit tread installation adds height to existing treads unevenly, the riser heights will vary beyond the 3/8 inch limit. Measure every existing tread height before ordering retrofit treads and confirm that adding the new tread thickness creates consistent riser heights across the full staircase run.


Installation

Hardwood stair tread installation: step-by-step

This process covers retrofit hardwood tread installation over existing stairs, which is the most common scenario in Southern California residential projects.

Tools required

  • Tape measure and level (check each tread for level and twist)
  • Circular saw or miter saw for length cuts
  • Table saw for ripping any width adjustments
  • Finish nailer (15 or 16-gauge) with 2-inch and 2.5-inch finish nails
  • Construction adhesive (Loctite PL Premium or similar)
  • Tapping block and rubber mallet
  • Belt sander or drum sander
  • Caulk gun
1
Remove existing carpet and tack strips
Remove all carpet, padding, and tack strips. Pull all staples and nails flush with the sub-tread surface. Check every sub-tread for squeaks and flex. Drive screws (not nails) through the sub-tread into the stringer or blocking below to eliminate any movement before the hardwood treads are installed. A squeaky stair before hardwood installation will be a squeaky stair after hardwood installation – fix it now.
2
Measure each tread individually
Measure the width of each tread opening individually – do not assume all treads are the same width. In most homes, each tread is a slightly different width. Mark which tread each board will go on before cutting. Measure at the back and the front of each tread – if the staircase walls are not perfectly parallel, each tread will need to be cut at a slight angle rather than square.
3
Cut treads to length
Cut each tread to the measured width with a fine-tooth blade to prevent tear-out on the face. For bullnose treads, confirm which end carries the bullnose return (for open-sided stairs) before cutting. For square-end treads that terminate into a wall, the wall end will be cut to fit tight to the wall surface – leave the nosing end long and trim to exact fit after placement.
4
Apply adhesive and set treads
Apply two beads of construction adhesive along the sub-tread – one at the front, one at the back. Set the hardwood tread in position and press firmly. Check that the nosing overhangs the riser face by the correct projection distance (3/4 to 1.25 inches per California code). Drive finish nails through the tread into the sub-tread and stringer at 8 to 12-inch intervals. Work from the bottom of the staircase upward.
5
Install risers
If replacing risers with hardwood or painted MDF risers, measure and cut each riser after the treads are installed. The riser fits between the tread above and the tread below, glued and nailed in place. Paint-grade MDF risers are the most common choice as they can be painted white to contrast with the stained hardwood treads.
6
Sand, stain, and finish (for unfinished treads)
Sand treads starting at 80 grit and finishing at 100 or 120 grit. Apply stain with the grain, allow penetration time, wipe off excess, and let dry completely per the stain manufacturer’s instructions. Apply minimum two coats of finish, sanding lightly between coats with 220 grit. Use California-compliant products from our stains and finishes selection. Do not use the stairs until the finish is fully cured – minimum 24 hours for water-based, 48 to 72 hours for oil-based.

Cost Guide

Hardwood stair tread cost guide: Southern California 2026

Cost varies significantly by species, thickness, finish, and whether treads are standard or custom. A standard 12-to-14 step residential staircase requires 12 to 14 treads plus a landing nosing piece.

ProductSpeciesCost Per TreadNotes
Standard tread 1 in thick, 48 in – unfinishedRed oak or hemlock$35 to $65Most affordable hardwood tread option. Stained on-site.
Standard tread 1 in thick, 48 in – unfinishedWhite oak$55 to $90Most requested species. Stained or natural finish on-site.
Standard tread 1 in thick, 48 in – unfinishedWalnut$90 to $160Premium species. Natural finish on-site.
Standard tread 1 in thick, 48 in – unfinishedHickory$65 to $110Hardest domestic species. Natural or light stain on-site.
Thick tread 2 in to 3.5 in – floating stair specWhite oak or walnut$150 to $600 plusCustom fabrication. Price varies with thickness and species. See our floating stairs guide.
Custom profile or winder treadAny speciesQuote requiredCustom dimensions, angled cuts, L-shape winders – all available from NHW in-house mill.
Installation labor per tread (SoCal)N/A$50 to $150Retrofit over existing stairs. New build with framing is higher. Full 14-step retrofit: $700 to $2,000 labor.

Trade and contractor accounts receive volume pricing on all stair tread materials at National Hardwood.


FAQ

Frequently asked questions

A stair tread is the horizontal board forming the stepping surface you step on. The riser is the vertical board between treads that closes the front face of each step. Treads provide the platform while risers fill the structural gap vertically.
Standard hardwood stair treads for conventional staircase construction are 1 inch thick. Retrofit treads installed over existing sub-treads are typically 3/4 inch thick to minimize the rise added to each step. Floating stair treads require 1.5 inches minimum for structural integrity without sub-tread support, and most high-end floating stair installations use 2-inch to 3.5-inch thick treads for both structural and aesthetic reasons. National Hardwood fabricates solid hardwood treads up to 3.5 inches thick.
If exact floor color matching is the priority – which it almost always is in a renovation – choose unfinished treads and stain them on-site to match the existing floor. Prefinished treads are faster to install and have a harder factory finish, but color matching to an existing floor from a factory is very difficult to get exactly right. For new construction where there is no existing floor to match, prefinished treads are a good choice. For homes with prefinished hardwood floors, unfinished treads are strongly preferred.
Yes – this is one of the most common stair renovation projects in Southern California. Remove all carpet, padding, and tack strips first. Confirm that the existing sub-treads are structurally sound with no flex or squeak. Screw down any loose sub-treads before the hardwood treads are installed. Measure each tread opening individually as widths vary. Retrofit hardwood treads are typically 3/4 inch thick and sit on top of the existing sub-tread with construction adhesive and finish nails.
Bring a sample of your existing floor to our Van Nuys showroom. We will identify the species and match the stain color on an unfinished tread sample. We stock both hardwood flooring and stair treads in the same species so both can be matched and finished to the same specification from one location. Because we stock white oak, red oak, walnut, maple, hickory, and hemlock in tread dimensions, we can match most Southern California floor installations from stock.
California Building Code (CBC R311.7) requires a minimum tread depth of 10 inches measured from nosing to nosing for stairs with a standard bullnose nosing. If no nosing projection is used (such as on square-nose floating stair treads), the minimum tread depth increases to 11 inches. The maximum riser height is 7.75 inches. A standard residential staircase tread is typically 11 to 11.5 inches deep in practice, which comfortably exceeds the code minimum.
For like-for-like replacement of stair treads – replacing existing treads with new treads of the same dimensions – most California jurisdictions do not require a building permit as it is considered cosmetic maintenance. However, if you are changing the stair configuration, adding or removing steps, or changing the rise and run dimensions, a permit is required. For floating stair installation or any new stair construction, permits and structural engineering are always required. Confirm with your local building department before starting any stair work.
NHF
National Hardwood Flooring and Moulding
Van Nuys, CA – Est. 1974 – Custom stair treads any species and thickness – 50 plus years serving Southern California
Hardwood stair treadsWood stair treads Oak stair treadsWhite oak stair treads Stair treads and risersBullnose stair treads Red oak stair treadsWalnut stair treads Retrofit stair treadsUnfinished stair treads

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