How to Use the EZ Stair Calculator

	Enter Total Stair Rise*	inches
	Enter Your Run	inches	We suggest 10.5" for 2x12 or 2 - 2x6 Treads. Treads may be cut to suit other widths.
	Either B or C is required.
	Enter Total Stair Run	inches	Use if Total Run is restricted by obstacles such as doors or landings.
Is there a Head Height Restriction? Yes No

Enter Head Height Restriction (if applicable)

inches

Minimum Head Height clearance is 78 inches. This may alter B or C above.

Note: For commercial stairs, I.B.C. code requires a maximum RISE of 7" and minimum RUN of 11".

*Denotes required field.

Calculate

	Result 1	Customize	Adjust
Number of RISERS			Up Down (Click to Adjust)
RISE Height			inches
Number of RUNS			Number of Bracket Sets Needed
RUN (inches)			Longer Shorter (Click to Adjust)
Total Stair RUN			inches
Stringer Length			feet
EZ Stair Spacer Setting			Adjust spacer length to set brackets

Enter TREAD Thickness*	inches
Enter RISER Thickness*	inches

Will the stair be set on finished surface or sub-surface ?* Click to select.

Enter finished surface thickness:

inches*

The front cut is nominal 2-inch from flange. Add or subtract as required to meet base board heights, etc.

2 "

inches

Will the top rise have a finished riser facing or set flush ?* Click to select.

Enter Riser Facing Thickness:

inches*

The top stringer may be cut horizontally (C) to match the top surface or base board height, etc.

* Denotes required field.

# inches

Note: All cuts are measured from the bracket flanges and are cut parallel to the flanges.

Enter STRINGER Thickness	inches*
Enter overall width of stair including stringers	inches*
Note: Allow for sheetrock thickness on interior stairs if stringer is blocked out over sheetrock

* Denotes required field.

Does your tread have a nose? YES NO

Will stairs be INTERIOR or EXTERIOR ?

Will each step have one SINGLE TREAD or TWO HALF TREAD ?

Will stair be CARPETED or FINISHED WOOD ?

Item	Size	Quantity
Bracket Sets
Treads
Risers
Bottom Riser		1
Top Riser Facing		1
Stringers		4
Cleat Brackets, see details for correct usage

	Exterior
	Single Tread	2 1/2" #8 Deck Screws
When using pressure treated lumber use screws approved for use with ACQ or use stainless steel screws.

	Exterior
	Two Half Treads	2 1/2" #8 Deck Screws
When using pressure treated lumber use screws approved for use with ACQ or use stainless steel screws.

	Interior
	Carpeted	2 1/2" #8 Deck Screws

NOTE: For 3rd Alternative: Subtract additional finished tread thickness for bottom cut (Step 4 (C)). Click above images for enlarged view.

For more information on cleat installation, click here to view a detailed PDF. Click on above images to enlarge view.

Click on above images to enlarge view.

Note: Customer must decide method screw type and quantity for rise and tread attachment.

Disclaimer: All specifications noted in this calculator are approximate. Use at your own discretion.