The Woodpeckers CSP Clamp is a woodworking clamp made to pair with Woodpeckers Clamping Square Plus setup tools for cabinet, box, and case assembly. This is a clamp designed for corner squaring and assembly work. Model Number: CSP. If you build drawers, cabinets, shelves, or shop fixtures, this setup is about making glue-ups less fussy and keeping parts where you want them while the joint comes together.

What makes the CSP Clamp matter is how it works with the hole pattern in the Clamping Square Plus. Instead of being stuck with one clamp position, you can drop the clamp into different holes and shift clamping pressure closer to the joint, farther from the edge, or wherever the workpiece needs support. That gives you more control when you're trying to hold panels square during assembly, especially on projects where a little movement at the corner turns into a lot of cleanup later.

In use, the system is straightforward. The square establishes the reference corner, and the clamp applies holding force through that system so you can focus on fit-up, glue, and fastener placement. For woodworking and cabinet assembly, that is the whole game. Less time chasing racked corners means less time sanding, trimming, or forcing a cabinet back into shape after the glue starts to grab.

The shop advantage here is flexibility. The images show the Woodpeckers CSP Clamp being used on a multi-shelf case assembly, which is exactly the kind of work where keeping parts aligned gets harder as the project grows. Being able to position multiple clamps around the square helps stabilize the work while you move through each step of the assembly process. For repeated box making or cabinet work, that kind of repeatability is worth paying attention to.

There is also a practical storage angle. Woodpeckers shows a Rack-It wall storage option that holds Clamping Square Plus tools and CSP Clamps together. That is not the reason to buy the clamp, but it does tell you the system is designed for real shop use, not just a one-off jig that gets tossed in a drawer.

The Woodpeckers CSP Clamp is best suited for woodworkers, cabinetmakers, and serious DIY users who already use, or plan to use, the Clamping Square Plus system. If you want a general-purpose bar clamp, this is not that. If you want a cleaner way to hold cabinet parts square during assembly and make your corner setups more repeatable, this is the right kind of specialty clamp.

Woodpeckers CSP Clamp is a smart add-on for clean cabinet assembly

If you already believe setup matters, this clamp makes a lot of sense because it turns the Clamping Square Plus into a more useful corner-holding system.

• Who it's for: Woodworkers, cabinet builders, and serious DIY users doing box, shelf, and case assembly.
• Why it stands out: The real win is adjustable clamp placement through the Clamping Square Plus hole pattern, which gives you better control over how the corner pulls together.
• Worth knowing: This is a system-focused clamp, not a do-everything shop clamp. It makes the most sense if you are using the Woodpeckers Clamping Square Plus platform.

• What is the Woodpeckers CSP Clamp used for? It is used for corner squaring and holding workpieces during woodworking assembly such as cabinets, boxes, and shelving.
• Does it work with the Clamping Square Plus? Yes. The product images show the CSP Clamp designed to drop into the holes in the Woodpeckers Clamping Square Plus.
• Where is it made? The product imagery states that it is made in the USA.