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Stair parts & components.

The right tread profile makes the difference between a staircase that looks finished and one that looks patched. FIR installs eight stair part types across Tampa Bay — each matched to your flooring, stair layout, and design intent.

8 profiles

Every stair shape has the right part.

Box staircases, open-sided stairs, floating staircases, and retrofit projects each call for a different tread or nosing profile. Choosing the wrong one affects how the stair looks, feels underfoot, and holds up over time. Browse the full lineup below.

Standard Square Nose stair tread

Standard Square Nose

The classic tread profile — a clean 90° overhang over the riser face. Works with any flooring material and suits most residential staircases.

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Flush Waterfall Stair Nosing

Flush Waterfall Stair Nosing

No overhang — the tread face runs flush into the riser in a seamless cascade. Clean, modern, and suited for contemporary interiors.

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Cap Squarenose stair tread

Cap Squarenose

Caps directly over an existing tread structure without full replacement. A cost-effective retrofit for updating the look of your stairs.

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Overlap Squarenose stair tread

Overlap Squarenose

A wider, stepped overlap over the riser that adds visual depth and a premium finished look to the stair edge.

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Return Treads for open-side staircases

Return Treads

Wraps around the open side of the staircase to create a fully finished edge. Required for open-concept staircases exposed on one or both sides.

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Return Risers for open-side staircases

Return Risers

The vertical face that wraps around an open-side stair, paired with return treads. Completes the finished stair look on exposed staircase sides.

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Tread With No Return for enclosed box staircases

Tread With No Return

A standard tread for fully enclosed box staircases where no open side exists. The most common choice for typical residential stair layouts.

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Floating Block Treads for modern open-riser staircases

Floating Block Treads

Thick, cantilevered treads with no visible riser — the signature element of modern floating staircases. Bold, architectural, and durable.

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How FIR works

Matched to your flooring. Measured for your stairs.

FIR doesn't sell stair parts off a shelf — every profile is selected, measured, and installed as part of a complete stair project. That means the tread color, material, and finish coordinate with your floor so the staircase feels like it belongs in the home instead of an afterthought.

Step 1

Free estimate and layout review

Send photos of your stairs, your step count, and whether any sides are open. FIR reviews the layout and recommends the right profile for your staircase.

Step 2

Material and color coordination

Tread material is matched or coordinated with your flooring selection — LVP, hardwood, or engineered wood — so the stair and floor read as a single system.

Step 3

Measured, cut, and installed

Every tread is measured and cut for the actual stair. No guessing on depth, return length, or nosing overlap. The finished stair is clean, safe, and tight.

Tampa Bay · Sarasota area

Ready to choose the right profile for your stairs?

Send photos of your current stairs and FIR will walk you through which stair part fits your layout, material, and budget.