Can 2×10 be used for stair stringers?

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If you are building code compliant stairs the tread dimension (depth or front to back) needs to be 10″ or more. The rise needs to be 7 1/4″ to not more than 8″. I have never tried to make a 2×10 work but I’m pretty sure that a 2×8 would not work unless you are building something more like a ladder for loft access.

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Pressure-treated or cedar 2×10 or 2×12 can be used depending on the depth of the cut-outs you’ll be using. By code you will need a minimum of 3-1/2″ of material left on the stringer after the cut-outs and that area should also be free of large knots which would weaken the stringer.

Beside this, How thick should a stringer be?

Stringer thickness should be determined by the type of board being made. The larger the surfboard, the thicker the stringer should be. Shorter surfboard blanks typically have stringers around 3/16” and longer, stiffer boards will have stringers around ⅜” or more.

Likewise, What size boards are used for stairs?

Stair treads are the horizontal boards that you step on. Stair treads may be made of a single 2×12, but are often made of two decking boards or 2x6s. A stringer is a wide board, usually a 2×12, that runs at an angle from the landing pad to the deck framing and supports the treads.

Also, Can you use joist hangers for stair stringers?

Stringers support the steps of a stairway and fasten to the framing of the deck. The primary method of connection between a stringer and the framing is a stringer hanger. This metal bracket supports the stringer and holds it on the framing. Stringer hangers look like joist hangers and function in the same way.

How thick should stair stringers be?

Wood is the most common stair tread and must be at least one-inch thick on stairs supported by risers. Wood must be at least one-and-a-half inches thick when used with open risers. Building code states that stair treads must be thick enough to support a person going up or down the stairs.


20 Related Question Answers Found

 

Can I use 2×8 for stair stringers?

You should attach 2×6 or 2×8 support framing under the rim flush to the bottom of the stringer. The stairs will hang here. Install a piece of blocking below the rim joist to extend the attachment surface for your stairs stringers. Use a level to mark the top step.

Can you use 2×10 for stair stringers?

Pressure-treated or cedar 2×10 or 2×12 can be used depending on the depth of the cut-outs you’ll be using. By code you will need a minimum of 3-1/2″ of material left on the stringer after the cut-outs and that area should also be free of large knots which would weaken the stringer.

What is code for stair stringers?

The building code (IRC, R311. 7 Stairways) is strict regarding stair layout and includes the minimum tread depth (10 inches), the maximum riser height (7 3/4 inches in the IRC, but this can vary by state), the maximum variance (typically 3/16 inch) between riser heights in a given stairway, and more.

What size wood do you use for stairs?

2x12s

What size lumber should I use for stair stringers?

2x12s

What is the formula for stair stringers?

The finish floor represents the tread at the top of the stair, so the total run is the number of risers minus 1. Multiply the number of risers (3, in this example) by the the run length (10 inches, in this example): 3 X 10 inches = 30 inches for the total run.

How many stringers do I need for a 36 inch wide staircase?

four stringers

What material is used for stair stringers?

LP SolidStart Laminated Strand Lumber (LSL) is ideal for stair stringers because it offers numerous advantages over traditional lumber products.

How many stair stringers do I need?

The number of stringers you need is a function of the width of the staircase and the tread material. Cut stringers can be spaced no more than 18 inches on center, so a 3-foot-wide staircase needs three stringers, and a set of slightly wider stairs (say 3 feet 6 inches) needs four stringers.

What do you use for stair stringers?

Most stairbuilders use dimensional lumber for stair framing, but if you want super strong and straight stringers, consider making them out of engineered lumber. The International Residential Code (IRC) governs the maximum rise (the height of each step) and the minimum run (the depth of each step), which are 7-3/4 in.

What type of wood should I use for stairs?

red oak

What type of wood is used for steps?

Pine is a softer wood that will more easily wear over-time than hardwoods. For exterior staircases, ironwoods are recommended such as Ipe or Cumaru. Additionally, although much softer redwood and cedar are good options since they stand up better than other species to the elements.


Last Updated: 8 days ago – Co-authors : 7 – Users : 11

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