
I've spent several days comparing two pineapple rulers. One, the Creative Grids Pineapple Ruler, I have used before and really liked. It recently came to my attention that Bloc Loc makes a Pineapple Ruler as well, and on impulse I ordered one. I'll give you my opinions in this post, which is very photo heavy.
Both rulers have YouTube tutorials, but the Bloc Loc lady is left handed which I found very confusing when she did her video. The Creative Grids video is clear as can be.


You can see that they differ considerably in appearance.
With the Creative Grids ruler, you trim the even numbered rows like this:

The ruler has little squares for each even round. You place the square for the round you are on over the center square, taking care to line up the dotted lines that appear throughout the ruler with your seam lines. There is also a white diagonal line that helps you be sure your center square is square and not tilted. You can trim two sides at once with the ruler in one position. Flip it and trim the other two sides.

When trimming the odd numbered rounds (in this case, the white strips), you do have to trim each side individually. You don't worry about lining up the squares now, but pay attention to the dotted lines and a 45 degree line at the top of the ruler.
You add squares to the corners when the block is as big as you want it (4", 5" and 6" are your options with this ruler). Use the ruler to square up your block perfectly.


I was pleased with how the blocks came out, with only the most minuscule distortion.

With the Bloc Loc ruler, there seems to be a lot more trimming. The ruler "locks" in place along your seam line, and you just need to line your center square in a square unit up with the 90 degree angle lines that are marked on the ruler. My seam ripper is pointing to one of these lines. There is another one running down the left side of the white square in a square block. You trim the excess fabric on the top right. You have to do this with all four sides of the block. So, four cuts.

Then you have to trim your strips down, all four sides. Four more cuts. And good grief if you forget this step (which I did every now and then), you will be doing some un-sewing.
So far, I am thinking there is a lot more passes with the rotary cutter to get each round to size with the Bloc Loc compared to the Creative Grids. Creative Grids: 4 trims per round. Bloc Loc: 8 trims per round.
Now let's talk about block size. There are two Creative Grids Pineapple rulers available. I have the smaller one, which gives you blocks that are 4", 5" or 6". All my fabric strips were cut to 1 1/4". There is a larger size for making 6", 8", or 10" blocks. For the larger blocks you would cut your strips a bit larger.
For the Bloc Loc ruler, you choose your tool based on the width of the strip you want to end up with. I chose a ruler that gave me the option of having one inch strips or 1/2" strips. If you want strips of a different size you must purchase more rulers.
With the Creative Grids tool, all strips are the same width (1/2") for the three block size options. If you opt for the larger size choice, I believe your finished strips are 1". With the Bloc Loc, you can use strips of any size wider than 1 1/4". Since you have to trim down the strips in each round anyway, it is a great use of leftover strips from other projects.
The plus with the Bloc Loc ruler is that you can make your pineapple block as big as you want to. You are not limited to a size. If you want a big pineapple block, just keep adding strips. You might think the ruler is too short to make a big block, but all you have to do is slide the ruler along the seam line to get to the end of your cut.

I made a nice big block, and as you can see, there is a fair amount of distortion. The block is askew. I was dismayed by this and thought I should try again and be more careful as I trimmed. I made a second big block, and it was just as crooked. I am thinking maybe it wouldn't be so noticeable if I had made a smaller block.
My final opinion is that I preferred the Creative Grids Pineapple ruler over the Bloc Loc. My reasons for liking it better is that 1) there isn't as much trimming per round and 2) the block came out straighter, 3) there are more lines on the Creative Grids tool for squaring up the block for better accuracy.

