The Woodpeckers Stair Tread Template Tool, model STTT, is an adjustable layout jig for transferring the exact width and angle of openings between two walls. This is a template tool designed for fitting stair treads, shelves, and other parts into out-of-square spaces. If you install built-ins, stair parts, or custom-fit panels, this tool matters because it helps you mark once, cut once, and spend less time sneaking up on a fit.

What makes this tool useful is not just that it measures width. It holds the actual angle of the walls at the same time, which is the part that usually causes trouble on site. Instead of bouncing between a tape measure, an angle finder, and a pencil line that may or may not be right, you set the tool in place, lock it, move it to your stock, mark, and cut. That is a faster workflow, especially when the material is expensive or the opening is ugly.

The adjustment range runs from 20-1/4 inches to 52 inches, so it covers a wide span of stair tread and shelving work. That range is large enough for many built-in shelf openings and stair applications without making the tool awkward to handle. For remodelers and trim carpenters, that means one layout tool can cover a lot of the custom-fit work that shows up during punch lists and finish stages.

Woodpeckers built the STTT from 14-gauge cold rolled steel that is laser-cut and computer-formed. In plain terms, that gives you a tool with the stiffness needed to hold its setting while you move from the opening to the material. The parts are zinc plated or powder-coated to fight rust, which matters on a jobsite or in a trailer where tools see humidity, dust, and rough handling.

The design is fully self-contained, which is one of the smartest parts of this tool. There are no separate wings, pins, or loose fittings to lose between jobs. The ratcheting knob at the bevel arm joint is there for a reason too: it gives you enough leverage to lock the angle down securely without the hardware getting in the way of the surrounding walls. When you are working inside a stair skirt or between cabinet sides, that small detail saves aggravation.

This layout tool is also straightforward to use. Extend the arms, set the bevel gauges against the walls, lock the tool, then transfer the shape to your workpiece. You are templating the opening directly instead of trying to calculate it. That is a better approach for stair tread fitting, built-in shelving, countertop fillers, and other trim work where the opening on paper rarely matches the opening in front of you.

The Woodpeckers Stair Tread Template Tool is made in the United States and carefully inspected in Strongsville, Ohio. That will matter to buyers who want a shop-built measuring and layout tool instead of a disposable import. More important than the flag on the box, though, is what the build quality gets you: repeatable layout accuracy, dependable lockup, and a tool that is meant to survive more than one project.

If you are a cabinetmaker, trim carpenter, remodeler, stair installer, or serious DIYer doing custom interior work, this tool makes a lot of sense. If all your cuts are open-ended and forgiving, you probably do not need it. But if your work has to fit tightly between two walls and look like it belongs there, the STTT earns its keep fast.

Woodpeckers Stair Tread Template Tool Gets the Fussy Fit Right

The Woodpeckers Stair Tread Template Tool is one of those layout tools that makes perfect sense the first time you use it on an opening that is nowhere near square.

• Who it's for: Trim carpenters, remodelers, cabinet installers, and serious DIY users fitting stair treads, shelves, and custom panels between walls.
• Why it stands out: Wide 20-1/4 inch to 52 inch range, solid steel construction, and a self-contained design that holds angles and width without loose parts floating around your bag.
• Worth knowing: This is a dedicated layout tool, not a measuring gadget for every job. If your work needs tight custom fits, it earns the bench space. If not, it may be more tool than you need.

• What is the adjustment range of the STTT? The Woodpeckers Stair Tread Template Tool adjusts from 20-1/4 inches to 52 inches.
• What kinds of projects is this tool made for? It is designed for stair treads, shelves, countertops, and other custom-fit parts that install between two walls or in out-of-square openings.
• What is it made from? The tool is made from 14-gauge cold rolled steel, with components that are zinc plated or powder-coated for durability and rust resistance.
• Is it made in the United States? Yes. Source data states it is made in the United States and inspected in Strongsville, Ohio.