> For the complete documentation index, see [llms.txt](https://resources.viewrail.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://resources.viewrail.com/install/flight-mono/steel-first-install.md).

# Steel First Install

### Tools Needed for This Install

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* Come Along Winch
* Saw Horses
* Level
* Tape Measure
* Speed & Carpenter Square
* Pencil/Marker
* Dead Blow Hammer
* Drill/Impact Driver
* Hammer Drill\*
* 11/64" & 1/2" Wood Drill Bit\*

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* Concrete Drill Bit\*
* Phillips Head Driver Bit
* Torque Wrench
* 1/2" to 3/8" Reducer
* 3/4" Socket
* 5/16" Hex Bit Socket
* T-30 Torx Socket
* 1/2"-13 Tap & Tap Wrench
* Painter’s Tape & Silicone

\**If Applicable*
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### Things to Know Before You Get Started

* Read over the provided material prior to the start of your installation
* Many of our products are aided by a second or third set of hands, in some cases it can be a necessity. Plan accordingly.
* Ensure to apply the supplied Threadlocker to all mechanical connections

### FLIGHT Mono Installation

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<figure><img src="/files/p1in55C6yu5WtqVCh5kd" alt=""><figcaption></figcaption></figure>

* Using the provided shop drawings, mark the center line from wall indicated in the shop drawings as “WALL TO CENTER OF STRINGER”
* Next use the same shop drawings to mark out the top of your header plate - This measurement will be called out either from the upper subfloor or finished floor down to top of header plate
* Line up the Header Plate Cover with the mark you made
* Trace out the hole pattern of the plate onto the header
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<figure><img src="/files/XGIYuew9dFou8e0VzYow" alt=""><figcaption></figcaption></figure>

* Using an 11/64" drill bit, predrill directly in the center of the center slot you outlined in STEP 1

{% hint style="info" %}
Note: If your FLIGHT system has LED lighting and the shop drawings indicate that the power is to be run from the upper floor down to the LED controller inside the stringer tube, then boar out the larger bottom center hole and pull Romex through. It is important to not have any power running to the line at this stage
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<figure><img src="/files/xtIcY7PTD4YTdWUoOXD6" alt=""><figcaption></figcaption></figure>

While there are many styles of concrete header, the most common is concrete pan decking with an I-Beam as support with welded steel backing - Predrill the correct sized hole in the center of the slot you&#x20;

outlined in STEP 1

{% hint style="info" %}
*Note: If your FLIGHT system has LED lighting and the shop drawings indicate that the power is to be run from the upper floor down to the LED controller inside the stringer tube, then drill out the larger bottom center hole and pull Romex through. It is important to not have any power running to the line at this stage.*
{% endhint %}
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<figure><img src="/files/KaFXJhHo9rL78lO1eEmI" alt=""><figcaption></figcaption></figure>

**LED Lit Tread Systems Only**

* If your FLIGHT system has LED lighting and the shop drawings indicate that the power is to be run from the lower floor up to the LED Driver inside the stringer tube, then locate and place the foot plate in the called out location in your shop drawings
* Mark and drill out one of the larger holes in the center of the plate and pull Romex through from below

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Note: It is important to not have any power running to the line at this stage.
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<figure><img src="/files/75LQP1vmgogG10IKqiuO" alt=""><figcaption></figcaption></figure>

* Bring the stringer into the environment to unpack
* Look for the “Header” and “Footer” labels marked on the packaging
* Unpack the stringer and set it on saw horses

{% hint style="info" %}
Note: Protect the finish. Put either a blanket or cardboard between the saw horses and the stringer tube to ensure the finish remains blemish free.
{% endhint %}
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<figure><img src="/files/6a794btwx9NUTeyDgRuI" alt=""><figcaption></figcaption></figure>

* It may be necessary to use a 1/2"-13 Tap to clear any extra powder coat from the treads of the holes before\
  proceeding to the next steps
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<figure><img src="/files/KhP4aqww6pK2LrJHV5bg" alt=""><figcaption></figcaption></figure>

* Use the 1/2" x 2" Flathead Bolts to attach the Footer Plate to the stringer
* Torque to 70 lb-ft following the pattern above
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<figure><img src="/files/vo5hk0fxFge6rOJLEA6b" alt=""><figcaption></figcaption></figure>

* Use the 1/2" x 2" Flathead Bolts to attach the Header Plate to the stringer
* Torque to 70 lb-ft following the pattern above
  {% endcolumn %}
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<figure><img src="/files/jQmnwzKIO2Ipk71vmxj0" alt=""><figcaption></figcaption></figure>

* With the help of others, flip the stringer on to the opposite side (FIG. A)
* It may be necessary to use a 1/2"-13 Tap to clear any extra powder coat from the treads of the holes before proceeding to the next steps (FIG. B)
  {% endcolumn %}

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<figure><img src="/files/7NxQDhJZ4ApFpXDFxeGL" alt=""><figcaption></figcaption></figure>

* Place all but the first and last tread brackets on to the stringer lining up the 2 small holes on the inside of the brackets (FIG. A)
* Secure the tread brackets using the provided clips (FIG. B)
* Ensure each bracket is aligned and square with the stringer tube (FIG. C)
* Thread the 1/2" x 1" flange bolts through the tread bracket and into the stringer in the marked order, until they are finger tight - Torque to 70 lb-ft following the pattern above (FIG. D)
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<figure><img src="/files/zBbUwBdCcHXNJCXSjLDG" alt=""><figcaption></figcaption></figure>

**Systems with a “Stringer Reveal”**

* Stringer Reveal: When the Header Plate extends below the header, and the hardware that holds the plate to the stringer would be visible after installation
* This will be indicated in your shop drawings
* Secure the provided Header Plate Cover to the Header
* Plate using either tape or silicon and a clamp and let dry
  {% endcolumn %}

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<figure><img src="/files/NZw0yTpl4tF1Z3ksI75V" alt=""><figcaption></figcaption></figure>

* Lift the stringer into place, lining up the hole
* We recommend using either a pulley system or a Come Along Winch and brace material to hold the stringer in place while fastening
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<figure><img src="/files/TIMLqzynWRyTjcVWWQ11" alt=""><figcaption></figcaption></figure>

**Wood Header**

* Fasten the 3/8" x 5" Lag through the middle slotted hole in the header plate to hold the stringer in place

**Concrete Header**

* While there are many styles of concrete header, the most common is a concrete deck pan with an I-Beam as support and steel plating welded on for backing
* Secure our header plate with the through bolt hardware of your choice
  {% endcolumn %}

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<figure><img src="/files/j7xomaIo2r3Gv2jnL7Im" alt=""><figcaption></figcaption></figure>

* Place a level on to one of the tread brackets about half way up the stringer
* Ensure the tread bracket(s) are level left to right and front to back
* Optional: Use multiple levels for increased accuracy
  {% endcolumn %}
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<figure><img src="/files/eVdTlmhMNjm1jTpgoeIB" alt=""><figcaption></figcaption></figure>

* If not level left to right, shim the footer plate to adjust
* Cut the excess shim away
  {% endcolumn %}

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<figure><img src="/files/efuSPnLHjYV445dXpQKd" alt=""><figcaption></figcaption></figure>

* Install the top tread bracket using the hardware and the process found in STEPS 8 & 9
* Install the bottom tread bracket using the same hardware as you did on the top tread but only finger tighten the bolts as this tread bracket will most likely have to be removed in a later step
  {% endcolumn %}
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<figure><img src="/files/xhjg4BP1GGKiLFt5hwGg" alt=""><figcaption></figcaption></figure>

* Locate the top and bottom treads and place them on the top and bottom tread brackets

{% hint style="info" %}
Note: The images above are of the Huber board constructed temporary treads that are sent with our ‘Steel First’ sales, shipping & installation method. If your order was shipped complete, meaning you received your stringer steel and all of your treads/platforms/landings together, your treads/ platforms/landings will be finished per your request during the order stage
{% endhint %}

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<figure><img src="/files/H9cxttIubNAmjMUjzRS4" alt=""><figcaption></figcaption></figure>

* Ensure that the bottom and top rise measurements are within 3/16" of the Tread Rise measurement found on the\
  Customer Elevation page of the shop drawings
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<figure><img src="/files/qvq9bLMa9i7YRFQvKpK2" alt=""><figcaption></figcaption></figure>

* If the rise from the top tread to the upper floor is outside of 3/16" of the prescribed rise, loosen the center lag and adjust the header plate up or down as needed
* Once it is where it needs to be, tighten the lag screw
* Recheck that the tread brackets are level - see STEP 13

{% hint style="info" %}
Note: If you used painter’s tape to hold the Header Plate Cover, please remove the tape during this step
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<figure><img src="/files/UUlIAq8KEZvbmtJbNClR" alt=""><figcaption></figcaption></figure>

**First Tread is too Low**

* If the rise from the lower floor to the first tread is short by more than 3/16", shim the foot plate by the needed amount in order to raise the system up&#x20;

**First Tread is too High**

* If the rise from the lower floor to the first tread is more than 3/16" from the prescribed measurement, you will need to contact your Viewrail Project Engineer
  {% endcolumn %}
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<figure><img src="/files/Cph1ZbMTkNNq5VoGyc2S" alt=""><figcaption></figcaption></figure>

* If the stair system will be close to a wall, it is a good idea to check for a consistent distance between the stringer and the wall
* Check at multiple spots along the stringer and wall
  {% endcolumn %}

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<figure><img src="/files/dB4wYKg9TtDHQ4gWkqsj" alt=""><figcaption></figcaption></figure>

* It may be necessary to remove the bottom tread bracket in order to accomplish the following steps
* Select one of the holes in the center front row of the foot plate and drill a pilot hole using an 11/64" drill bit
* Fasten the foot plate using a 3/8" x 5" Lag until snug

{% hint style="info" %}
Note: It is important to verify that the system is still plumb, make any adjustments if needed before proceeding further.
{% endhint %}
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<figure><img src="/files/a1yi4tKfklmaYfJ3kVTP" alt=""><figcaption></figcaption></figure>

* Predrill the remaining holes on the foot plate
* Fasten the remaining hardware into the foot plate
* Replace the bottom tread bracket, using the provided hardware - Torque to 70 lb-ft
  {% endcolumn %}

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<figure><img src="/files/DlHPFUFw6gtZEvhp8tjG" alt=""><figcaption></figcaption></figure>

* At this point you can predrill the remaining holes on the header plate:\
  Lag Bolts - Predrill utilizing a 11/64" drill bit\
  Through Bolts - Predrill utilizing a 1/2" drill bit
* Fasten the remaining hardware into the header plate

{% hint style="info" %}
Header Note: If using 1/2" x 8" hex head through bolts on the header plate, thread the bolts into place, so they are finger tight, then Torque to 70 lb-ft.
{% endhint %}
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<figure><img src="/files/m6tifVf5EMHHnU4tFqdi" alt=""><figcaption></figcaption></figure>

* It may be necessary to remove the bottom tread bracket in order to accomplish the following steps
* Drill a pilot hole in one of the center front row holes of the foot plate - Refer to the wedge anchor manufacturer’s\
  documentation for the concrete bit diameter to use
* Insert a concrete wedge anchor and torque to 50 lb-ft - Tapcons can be used as well

{% hint style="info" %}
Note: It is important to verify that the system is still plumb, make any adjustments if needed before proceeding further
{% endhint %}
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<figure><img src="/files/lxOzHPXO6EZ2GpamQh6K" alt=""><figcaption></figcaption></figure>

* Predrill the remaining holes on the foot plate
* Fasten the remaining hardware into the foot plate - Torque to 50 lb-ft
* Replace the bottom tread bracket, using the provided hardware - Torque to 70 lb-ft
  {% endcolumn %}
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<figure><img src="/files/Of9PykAE9cwAyerTMub9" alt=""><figcaption></figcaption></figure>

* At this point you can predrill the remaining holes on the header plate
* Fasten the remaining hardware into the header plate
  {% endcolumn %}

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***

### Get Help from Us

Is this not the product you're looking for? Troubleshoot your issue by contacting our customer service team. [866-432-0541](tel:8664320541) or <customerservice@viewrail.com>


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