Floating Stairs
A mono-stringer stair built to your measurements: a 6×6 steel or aluminum spine, solid hardwood treads, and optional framed railings — straight, or with intermediate landings for quarter turns and switchbacks. Enter your measurements, see your stair and its price, and order it here.
Request a quote instead Something this quoter does not cover? One of our estimators quotes it within 72 hours.
How to price your floating stair
- 1MeasureThe height from finished floor to finished floor, and the 4 measurements of the beam the stair bolts to at the top. Approximate numbers are fine for a price; the Measurements tab shows how to take them.
- 2ChooseTread width and wood, the stringer and its color, and railings if you want them. A stair that turns: open Stairs with intermediate landings.
- 3See your stairIt is drawn to scale on the right with its price, what is included and the lead time. Every change updates it.
- 4Keep it or buy itSave & email my quote keeps it with a number; Add to cart lets you buy it, alone or with other items. You pay nothing until you order.
1. Floor-to-floor height
Enter feet and inches, like 4' 8 1/2", or inches only, like 56 1/2. Per code, 151" is the maximum rise permitted per flight. An approximate height is enough for pricing; the Measurements tab explains how to take the final height.
Receiving beam at the upper floor
The top of the stair bolts to this beam. All four are needed to price the stair: they decide whether it needs an extension tread.
Top to bottom of the joist or header the stair attaches to.
Its width, front to back.
The board on top of the beam.
Hardwood, tile and so on (0 if none).
2. Treads
Warm, light reddish-brown color with a bold, open grain. Hard and durable for everyday traffic (Janka hardness 1,290 lbf). Takes stain evenly.
3. Stringer material
4. Railings
Stair only. Railings are purchased from other sources.
Your stair
Your stair, drawn to scale, and its price appear here as soon as the measurements are in.
- ○ The floor-to-floor height
- ○ The 4 receiving beam measurements
- ○ The stringer color
Not sure how to measure? Open the Measurements tab above. Approximate numbers are fine for a price.
Stairs with intermediate landings
You can price quarter turns and switchbacks with multiple flights and landings here.
1. Stringer material
2. Treads
Warm, light reddish-brown color with a bold, open grain. Hard and durable for everyday traffic (Janka hardness 1,290 lbf). Takes stain evenly. The landings are topped in the same wood.
3. Railings
Stair only. Railings are purchased from other sources.
4. Flights and landings
Landing steel and wood, quoted and shipped with the stair.
Enter feet and inches, like 4' 8 1/2", or inches only, like 56 1/2.
Step 2: each flight and landing, bottom to top. The flights must add up to the total rise; the last flight is what is left.
Flight 1
Enter feet and inches, like 4' 8 1/2", or inches only, like 56 1/2. Per code, 151" is the maximum rise permitted per flight.
Landing 1
Minimum width: the tread width (42" treads → 42").
Across the direction of travel.
Minimum depth: the tread width (42" treads → 42").
In the direction of travel.
0 if the landing is fixed to walls or framing by others. Each post is as tall as its landing.
Flight 2
Rise from the last landing to the finished upper floor. The receiving beam below decides whether this flight gets an extension tread (top tread level with the floor). Per code, 151" is the maximum rise permitted per flight.
Receiving beam at the upper floor
The top of the stair bolts to this beam. All four are needed to price the stair: they decide whether it needs an extension tread.
Top to bottom of the joist or header the stair attaches to.
Its width, front to back.
The board on top of the beam.
Hardwood, tile and so on (0 if none).
Still needed to price this stair: the total rise, the rise of flight 1, the rise of flight 2, the width of landing 1, the depth of landing 1, the beam height, the beam thickness, the subfloor thickness and the finished floor thickness (0 if none).
The price and the drawing appear as soon as everything is filled in. If you have special customizations, request a quote.
(You will be contacted to finalize the request if you did not finish it.)
Shipping options
Choose how you receive your stair. Nothing to sign: the terms of purchase on your quote and invoice cover shipping, measurements and the permit package.
Shipping terms
- Shipping is an estimate: once the shipment is made, any balance is invoiced: freight changes by the forwarder, and services not included in the shipping (liftgate, delayed receipt or warehouse charges, reconsignment and others).
- The customer is responsible for unloading or picking up the cargo, and understands that Dec-Iron loses control of the cargo once it leaves our premises.
- FedEx insurance covers damage repairs or total loss in the unlikely event it happens. The customer must note any damage on the bill of lading and email Dec-Iron pictures.
- Dec-Iron will replace the damaged pieces as soon as possible, as a priority, and will collect the insurance money later.
- If Dec-Iron deems the claim non-recoverable due to negligence of the receiving party, Dec-Iron has no obligation to refund, replace, or pay for any damage.
Measurements
- An approximate height is enough for pricing. The customer is responsible for carefully taking the final height. Measure from finished floor to finished floor, including flooring on both levels.
- If the floor is not perfectly level, the stringer’s point of contact decides the measurement: measure from the point of contact at the bottom of the stringer plate up to the upper floor. An out-of-level floor can cause a discrepancy or conflict with the stair geometry, so a laser measurement is recommended.
- Our stairs are laser cut and computer dimensioned, and they fit perfectly provided we are given an accurate total rise.
- For that purpose, the automatic pricing system provides the stringer’s point of contact, so the customer can refine the measurement before making any payment.
- The customer can pull a quote (PDF) from the cart, and the quote will include the required distance to the point of contact for confirmation.
Price your stair on the first two tabs to see where its stringer touches the floor.
The final opportunity to make changes is when we submit the approval drawings.
Permitting assistance
- With the estimate, the customer can purchase a permitting package that includes: drawings, a structural report, the reaction calculations, structural recommendations for the floor and walls, and a certificate of conformity certifying fabrication quality and code compliance.
- The customer can give this package to their builder, structural engineer, or architect for permitting.
- Price: $100, purchased together with the quote. The permitting package is paid in full.
- Dec-Iron does not stamp drawings; stamping is the responsibility of the engineer of record.
From your quote PDF. Leave it blank if your stair is (or will be) in the cart: the package then goes with that order.
Need something this page does not offer? Request a custom quote here: one of our estimators replies within 72 hours.