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Internet # 100185157

Model # 403

Store SKU # 710237

36 in. Aluminum Straight Edge Ruler

  • Ideal for measuring and marking up to 36 in.
  • Can be used as straight edge for tracing and drawing
  • Heavy-duty aluminum construction
  • View More Details
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Product Details

About This Product

The Empire 36 in. Aluminum Straight-Edge Ruler is great for measuring surfaces up to 3 ft. It is made with heavy-duty aluminum for durability. Features easy-reading inch-scale graduations for greater precision. Its straight edges are also ideal for tracing and drawing straight lines, and the ruler includes a built-in hole for storage. Lifetime limited warranty.


  • Heavy-duty aluminum frame for strength
  • Easy-reading inch-scale graduations, allowing measurements to be more accurate
  • Graduations run in alternate directions allowing for measurements to be made in either direction
  • Heavy-duty aluminum straight edge - one 18 in. W
  • Lightweight design
  • Hang hole included for convenient storage
  • Lifetime limited warranty
  • Shop All Milwaukee Products
  • Return Policy

Product Information

Internet # 100185157

Model # 403

Store SKU # 710237

Additional Resources

Shop All Empire
From the Manufacturer


Dimensions: H 36 in, W 1.125 in, D .062 in


Assembled Depth (in.)

.062 in

Assembled Height (in.)

36 in

Assembled Width (in.)

1.125 in

Maximum Length (in.)

36 in

Minimum Length (in.)

0.063 in





No Additional Features

Hand Tool Type




Measurement System




Tools Product Type

Hand Tool

Unit of Length


Warranty / Certifications

Manufacturer Warranty

Lifetime limited warranty

Questions & Answers

Q:Is this ruler stiff enough so that I could clamp both ends and use my circular saw to cut a straight line?
by|Feb 28, 2024
0 Answer
Answer This Question
Q:If it?s 72 inches long why do the specifications say that it?s 48 inches long?
by|Jun 3, 2023
1 Answer
Answer This Question

A:  My best guss why in the specs it says 48 inch is thet it is a web designers mistake that was never proof read or certified. Its hard to find any help these days with integrity and craftsmanship.

by|Oct 31, 2023
    3 found this answer helpful
    Q:Hi, does anyone have an idea of how heavy the ruler is? Thanks!
    by|Apr 19, 2023
    2 Answers
    Answer This Question

    A:  My guess is less then a quarter pound. They are not at all heavy.

    by|Apr 20, 2023

      A:  It’s easily picked up with one hand. I have no clue on the weight though. 

      by|Sep 26, 2023
        1 found this answer helpful
        Q:I notice the markings are painted on, not embossed. Will they rub off if I use a cleaner to wipe it down?
        by|Sep 12, 2022
        0 Answer
        Answer This Question
        Showing 1-4 of 25

        Customer Reviews

        4.7 out of 5

        • 4.7 out of 617 reviews
        • 93% recommend this product
        Filter by:
        Showing 1-10 of 617 reviews
        Very helpful tool for flooring
        This is the tool you want to make measurements for laminate floors. It is long enough for any cut you need to make, the two measurement sides are quite accurate, and it lines up perfectly with the edges of your flooring. Would hugely recommend this for any DIY installer
          • Recommended
          We used the Empire 36 inch and 48 inch rulers...
          We used the Empire 36 inch and 48 inch rulers to protect the edges of three 2x3 foam board posters. This allowed us to check 3 combined posters as baggage on our flight to a conference where the posters served as exhibits.
          • Verified Purchase
          Great for fishing
          Bought this for a fishing tournament and it worked out great durable and a last forever thank you home Depot
          • Verified Purchase
          • Recommended
          1 found this review helpful
          I originally bought this 48" AL ruler to use as a guide to cut insulation, it worked great for ...
          I originally bought this 48" AL ruler to use as a guide to cut insulation, it worked great for unfaced 16" R15 but not lengthwise on R49 batts, I ended up using a 2x4 for that. It's a well made ruler with easy to read numbers and has some weight & thickness to it (1/8") so it should last a long time. The numbers are painted on but not etched & there is a hole at one end for hanging. The back side has no numbers, so it can be used as a story stick, marking your measurements in pencil for repeated cuts. I used it this way to quickly mark the hight of electrical boxes around the room and to mark a 12" cut on 24" wide insulation that had to be cut in half lengthwise. This can be a huge time saver and prevent measuring mistakes & product waste. Just find your length and transfer it around to the back (using a small square if you want to be accurate) & mark it. Due to it's thickness, this product can be used for jigs that require measurements like an insulation cutting table. It comes wrapped in clear plastic which I chose to keep on so I could use a marker to write my slash marks right on it, later to be wiped off. You could also put tape on the back and use marker on that. If you find this review helpful please click on the thumbs up button, thanks!
          • Recommended
          23 found this review helpful
          We bought this product and a 36 in ruler at the same time. After getting to work on Monday I peel...
          We bought this product and a 36 in ruler at the same time. After getting to work on Monday I peeled the plastic protection wrap from them along with the barcode sticker on the back side. I wet a shop towel with acetone to remove the rest of the glue residue left by the barcode sticker. On the 36 inch ruler I turned it back over I noticed that where some of the towel had touched the graduations it melted the graduations. Quite surprised I took a better look and saw that the graduations were printed on instead of embossed, the 48 inch is the same way. No way will I ever buy another one of this vendors products or recommend something they 'made'
          • Verified Purchase
          18 found this review helpful
          A well made yard stick. It is durable aluminum and good for the price. It is also very easy to re...
          A well made yard stick. It is durable aluminum and good for the price. It is also very easy to read , and no need to turn around the ruler since both sides are marked.
          • DIY
          • Recommended
          4 found this review helpful
          A good 6' ruler
          This is a good 6' aluminum ruler and straight edge. I have owned a similar 4' empire straight edge ruler for years, and never had any problems with that one. This 6' ruler has a distance scale in inches from each end (so there is a 1" and a 71" number at either end), and is marked in easy-to-read black printing on light aluminum in 1/16" increments. The long edges are very slightly rounded to make it comfortable to handle, while the ends are a square cut with sharper edges. There is a 1/2" hole at one end so you can hang this from a nail or similar hook. A few additional items to note: 1) The easy-to-read marks are printed on fairly thickly (I can feel them running my finger across them), but they are not engraved, so in theory they could wear off given sufficient use; 2) the scales are printed only on one side (the back has nothing on it); 3) this ruler is only marked in inches (so if you wanted metric for some reason, look for a different scale).
          • Recommended
          7 found this review helpful
          Measure twice, cut once is the mantra of every good craftsman. A straight edge rules is absolutely crucial tool to have in your workshop. Being able to mark a perfectly straight line between two measured points is one of the most critical concepts of any kind of building trade be it carpentry, woodwork, masonry, etc. This particular straight edge ruler is nice because a few factors. One, the numbering is very clear and large. Two, the finish allows you to mark on the ruler face with pencil and then clean the mark off easily. Three, the ruler is a good thickness. It’s plenty thick enough to draw a pencil line OR to use as a guide for a knife or razor edge. Four, it’s a really good length. At 36 inches, this can be used in most applications. Five, the end holes are large enough for the head of a drywall screw. Empire is such a trusted name when it comes to precise measurement products. I don’t know who else I would trust more to make the perfect straight edge ruler.
          • Recommended
          12 found this review helpful
          Handy addition to my tool collection
          I have a 36" straight edge ruler but this one is better as it is 48". This is good if you want to draw a line or cut drywall that is 48" across. It seems to be well made, the divisions are well marked and it is not too heavy. It is from a company in Wisconsin but unfortunately it is made in China. It would be even better if it was made in Wisconsin.
          • Recommended
          2 found this review helpful
          Keeping things straight
          Nice to have in the workshop for all measuring and drawing straight lines. Lightweight and easy to use. Hangs on the wall when not in use and so its easy to store. The numbers are bright and easy to read from either side of the ruler. It is very accurate with my tape measure. So I can go from one to the other without worrying about being off on measurements 1/16" or not. Strong and doesn't bend easy so you get straight lines every time. Its one of those "nice to have" tools in your arsenal of equipment to have in the shop. Good value Be Safe.
          • Recommended
          5 found this review helpful
          Showing 1-10 of 617 reviews