Internet #206099254

Model #TA10Z-R

Store SKU #209812

TA 10-1/4 in. 12-Gauge ZMAX Galvanized Staircase Angle

  • Create a structurally sound staircase
  • Eliminates costly conventional notching
  • Corrosion resistance makes it great for outdoor applications
  • See More Details

Frequently Bought Together


Product Overview

Deck Glamour Photo

Deck It Out

Strong decks bring beauty and entertaining space to your outdoor living area

Deck Glamour Photo

Make Your Deck Beautiful and Safe

Building a safe, strong deck starts with the proper connectors and fasteners

Photo of a deck being built

Deck Building Tips and Tricks

Installing corrosion-resistant connectors and fasteners helps extend the life of your deck

SDWH Screw being installed into ledger

Ledger connections critical for deck safety

Strong-Drive® SDWH Timber-Hex HDG screw delivers high-strength, wood-to-wood connectivity, such as deck ledger applications

DTT2Z guardrail install

Guardrail Installation Tips and Tricks

Don’t take chances with guardrail connections. DTT2Z deck tension ties fasten guardrails to deck framing.

DTT1Z install

Securing the Deck to the House

Install DTT1Z as a tension tie to meet building codes and eliminate the need to access to the floor joists inside the home

LSCZ install

Take the Step to Secure Deck Stairs

LSCZ adjustable stair-stringer connector offers a concealed connection between the stair stringer and the carrying header or rim board

Tight LUS26Z install shot

Joist Hangers

Provides bearing and uplift resistance

Tight H1 install shot

Hurricane Ties

Ideal for preventing lateral movement of joists

Tight SD screw install photo

SD Connector Screw

The only screw approved with Simpson Strong-Tie connectors

Tight install shot of LCEZ4

Post Caps

LCEZ end post caps provide a post-to-beam connection in new or retrofit deck applications

Tight PBSZ install photo

Post Base

Features a 1 in. standoff to resist wood decay

Stainless-steel connector product shot

Prevent Corrosion

Deck-Drive DWP stainless-steel fasteners are recommended for higher-exposure environments or applications

Not only do angles make joints stronger, they also provide more consistent, straight corners. Simpson Strong-Tie offers a wide variety of angles in various sizes and thicknesses to handle light-duty jobs or projects where a structural connection is needed. The TA series eliminates costly conventional notching. For outdoor projects or those where moisture is present, use our ZMAX zinc-coated connectors, which provide extra resistance against corrosion (look for a "Z" at the end of the model number).
  • For use in structurally sound staircase framing
  • Eliminates complicated stringer notching that can weaken the stair stringers
  • Also ideal for heavy-duty 90° connections where a narrow angle is needed
  • Length: 10-1/4 in.
  • Made from 12-gauge steel
  • ZMAX galvanization offers extra corrosion resistance for exterior and treated-wood applications
  • Install with 1/4 in. x 1-1/2 in. Strong-Drive® SDS Heavy-Duty Connector screws
  • Shop all Simpson Strong-Tie here.

Info & Guides

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Product Depth (in.)
Product Length (in.)
Product Width (in.)


Brace type
Builders Hardware Product Type
Color Family
Connector Finish
G185 Galvanized
Fasteners Included
Fasteners Not Included
No Additional Features
Package Quantity

Warranty / Certifications

Manufacturer Warranty
Limited Warranty

Questions & Answers


I made raised beds last year with leftover vinyl fence pieces. I screwed them together using 1 ...

Asked by thegardener May 17, 2020

First when using simpson strong tie connectors always recommend downloading their full catalog: If you look at the catalog page for these connectors it says that they take 1/4" fasteners. Looking at a threadsize chart (this one would work: ). you will see that 1/4-20 and 1/4-28 screws have an external diameter of 1/4". 1/4-20 is much more common. So I would recommend 1/4-20 bolts of the correct length and large fender washers (to better distribute the compressive force of the nut and bolt) with 1/4-20 nuts.

What is the weight rating? Will they start to bend over time from use?

Asked by Girt March 13, 2020

The load capacity depends which direction the TA9Z is installed - with 2 fasteners to the stringer and 3 to the tread it has a capacity of 500 lbs; with 3 fasteners to the stringer and 2 to the tread it has a capacity of 750 lbs. The loads are based on Douglas Fir or Southern Pine lumber and the TA9Z is to be installed with 1/4" x 1 1/2" SDS screws. The TA9Z will not bend over time as long as it is not loaded beyond its rated capacity. Thank you!

Are these for open stairs or could you add risers to the treads after attaching them to these brackets?

Asked by Stairs August 29, 2019

So you would use these brackets when you want to have solid stringers as opposed to cut stringers for your outdoor stairs. Note that code allows you to use only two solid stringers on either side of the tread and these brackets if you use at least 2x6 Pressure treated boards for the tread and the length of the tread is no more than 36 inches. To your question, I used two 2x6 boards for the tread. Of course, don’t forget to have at least a quarter inch gap between the two boards to allow water to flow. Then I used a 2x6 board as a riser . The top tread overhangs the riser by ~.5”. The riser is screwed directly to the back side of the bottom tread and attached to the top tread using blocking. I did not want to have Screws heads that could collect water On the top tread.

Can these be installed with the vertical leg up which will put it behind the end of the tread?

Asked by Wondering January 29, 2019

We can only support the installation as it was designed/rated. With the vertical leg up, the stair tread would need to be a bit shorter to allow for the screw heads, which would bring the edge of the tread closer to the fastener than it was designed/rated to be. Thank you!

do these meet ma. code

Asked by john July 15, 2018

Please check with your local building department for local code acceptability. Thank you!

Can these be used on 12" treads?

Asked by Spaceman May 4, 2018

Probably shouldn't be, we removed an older set that had been installed with 12' treads and some of the over hanging boards had split of along the grain line in front of the brackets. There is a longer version that can be used.

what screws do you use to screw into the 3/4 stair tread?

Asked by Wayne February 28, 2018

I used 1" deck screws into my 1" thick composite board decking.


Asked by LEN November 20, 2017

Simpson Strong tie sells a specific screw for this connector. They are called “strong Drive SDSheavy duty connector screws”. Of course, if this is an exterior application get the exterior grade screws. Highly recommend downloading the Simpson Strong tie catalog as a PDF. It’s quick to search but it does take a little bit of thinking to find the right connectors and fasteners. Home Depot can pretty much can get you anything in that catalog. Even though the screw package says that pre-drilling is not required, I highly recommend pre-drilling a pilot hole for this and any screw fasteners that you use.

Can these be used for interior stairs? What is the max span and weight limit?

Asked by DIYer June 16, 2017

Yes, you can use this for interior stairs.

what size are holes in TA 12-Gauge ZMAX Galvanized Steel Staircase Angle?

Asked by smeisr October 9, 2016

1/4 inch

TA 10-1/4 in. 12-Gauge ZMAX Galvanized Staircase Angle - page 2

Customer Reviews

  • 4.9
    out of 46 reviews
  • 100% recommend this product
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Showing 1-10 of 46 reviews
Simpson Strong-Tie products always meet my expectations. Staircase Angles...
Simpson Strong-Tie products always meet my expectations. Staircase Angles attached to 2x12 in PT lumber using SDS 1.5 inch 1/4 inch screws makes a strong staircase.
by MuleDerrick
by st
works well in proper locations.
works well in proper locations.
by 2draconia
it's what I wanted arrived as promised...
it's what I wanted arrived as promised
by keh1
Perfect for the job
Product perfect, cost-effective, gets the job done. So easy even Matt Kelly could use it
by PapaZok
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Perfect angle to fix my stairs@...
Perfect angle to fix my stairs@
by Danthelocksmith
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by Genius
Great product. Porch stairs are strong and secure....
Great product. Porch stairs are strong and secure.
by RonB
4 Star Review
Rating provided by a verified purchaser
by HomeDepotCustomer
Showing 1-10 of 46 reviews