Table of Contents

## How do you measure a deck railing?

- Measure the distance between the corner posts of your deck with a measuring tape.
- Divide the length of your railing to create sections of equal lengths between five and seven feet; the thicker your railing posts, the longer you can make the subsections.
- Mark the placement of the posts on the deck.

**How far apart do horizontal balusters need to be?**

U.S. building codes mandate that balusters have no more than a 4-inch gap between them. This relatively tight amount of spacing still allows for visibility between spindles, but also stands as a safety measure to prevent small children from becoming stuck between spindles or from slipping through the balusters.

### How do you calculate railing?

5 Easy Steps For Measuring

- Step 1 – Measure the overall height.
- Step 2 – Measure the overall length.
- Step 3 – Length of nosing.
- Step 4 – Depth of finished tread.
- Step 5 – Height of finished tread.

**How high should a railing be on a deck?**

36″

The IRC requires guardrails to be at least 36″ in height measured from the deck surface to the top of the rail. Commercial decks attached to multifamily buildings regulated under the International Building Code (IBC) require 42″ high guardrails.

## How do you calculate railing spindles?

To determine the correct number of spindles for the guard, measure the length of the railing. Then, count the number of vertical guards and the measure the thickness of each. Next, multiply the number of spindles by the thickness, and then subtract this number from the length of the railing.

**What is code for deck railing spacing?**

The structural integrity of the railing depends heavily on the posts that support the rail structure. These posts should be no farther apart than six feet on the flat deck and no farther apart than 5 1/2 feet on stairs. Your local building department might require closer post spacing for added rail strength.

### What are horizontal balusters called?

Level Handrail The horizontal member of a level balustrade – also called guardrail.

**How is railing height measured?**

Handrail height on the stairs should be no less than 34 inches and no greater than 38 inches. The way this is measured is to begin at the leading edge of the stair nosing and run an imaginary vertical line upward until it reaches the top of the railing.

## How much is deck railing per linear foot?

Deck Railing Cost Per Foot Deck railings cost on average $93 per linear foot, installed. This will vary from about $42 to $648 per foot. Labor charges will be about $30 per foot. Materials can run anywhere from $15 to $600 per foot.

**How do you find an angle?**

For the exact angle, measure the horizontal run of the roof and its vertical rise. Divide the horizontal measurement by the vertical measurement, which gives you the tangent of the angle you want. Use a trigonometry table to find the angle.

### How can I figure out how much railing I need for my Deck?

So with that, let’s figure how much railing you need for your deck. The first thing to do is make a 2-Dimensional drawing of your deck. Make sure to label the sides of the deck, account for any angles, and measure the total distance of your stairs; from the front of the top stair tread to the front of the bottom or last stair tread step.

**How do you measure the angle of a railing?**

Set the framing square aside. Measure the distance from the top of the nearest step to both the low and high point of the pencil line to determine the angle of the rail support. Divide the angle measurement by 2 to determine the angle needed between the upper railing connections.

## Why is the angle of a deck railing important?

Correct deck railing angles are vital to ensure the safety of individuals using the deck stairs. When the angle of the railing does not match the angle of the steps, people using the stairs will lose their balance and perhaps fall down the stairs and receive severe injuries.

**What happens if railing does not match Angle of stairs?**

When the angle of the railing does not match the angle of the steps, people using the stairs will lose their balance and perhaps fall down the stairs and receive severe injuries. Matching the angle of the railing to the stairs requires precise measurements with common carpentry tools.