Trim Clip Miter Aid Zoom

See it in action:

Trim Clip Miter Aid
Trim Clip Miter Aid Intro

Trim Clip Miter Aid

Item #: 44049
The Miter Aid provides a slot for your tape measure's hook, to mark and measure the inside dimensions of mitered casing, and reveals.
In Stock
Sign up for price alert Add to Wishlist Find in Store


Marking and measuring the inside dimension of a mitered piece of casing can be a challenge with no place to hook your tape-especially if the trim piece is long. Not so with the Miter Aid. Simply clip it on with the integral spring clamp, and the Miter Aid provides a slot for your tape measure, perfectly aligned with the inside corner of a 45° miter. No need for an assistant and no need to measure from the one inch mark and subtract.

The Miter Aid also provides a handy reveal fence for marking your reveals on the jambs, header and sill. Once the reveals are marked, tap in a pin nail where the inside of the miter will be, hook your tape over the nail, and measure your width and height with ease. If you've ever fumbled with a floppy tape while casing out windows and doors, you'll love the ease and simplicity of the Trim Clip Miter Aid. Made in the USA.

Miter Aid was developed by a contractor with over 25 years of experience and 25 years of frustration caused by the lack of a reliable method to accurately measure trim for windows and doors. He took it upon himself to design a tool that allows anyone to precisely measure even the longest pieces of trim the first time and every time, thus eliminating the need for multiple cuts and wasted trim.


  • Integral spring clamp holds the Miter Aid in place-excellent for long trim pieces
  • Built-in reveal fence allows you to quickly mark 1/4" reveals on all four corners
  • Lightweight, durable construction
  • Bright yellow color makes it easy to find on the job site
  • Compact size-slip it in your pocket, or clip it to your belt
  • Designed for 45° miters only

What's included

(1) Trim Clip Miter Aid

Technical Details

  • Manufacturer Part Number: 003010
  • Weight (lbs): 0.2200