Wow - that's beautiful! Never saw one done that way; almost mind boggling. Nice work.

I think that the best method is to measure the supposed width of each finished block and the sashing in between and make the measured marks along the longer sashing strip. Pin each end of each block to the correct marks and ease the difference in whilst you sew. If you are a beginner, you may find that you have quite a lot of easing to do. However, it will help with your accuracy.

Great tip Kitsie! thanks for the pics

Lining of Sashing
 

I find it easier to put sashing on each block before joining the blocks, but only one two sides. I cut my sashing strips on the lengthwise grain so there isn't as much "give". If you put the sashing on this way the sashing becomes part of each block and the points will match. I start out at the bottom left block on my quilt and work my way to the top right. The last row of blocks on the right side only gets sashing on the top of the block. The top row only get a short sashing strip on the right side. The top right block gets no sashing. Then I put a narrow border around the blocks.

I've tried to post a jpeg, but can't seem to figure out how.

I find it easier to put sashing on each block before joining the blocks, but only one two sides. I cut my sashing strips on the lengthwise grain so there isn't as much "give". If you put the sashing on this way the sashing becomes part of each block and the points will match. I start out at the bottom left block on my quilt and work my way to the top right. The last row of blocks on the right side only gets sashing on the top of the block. The top row only get a short sashing strip on the right side. The top right block gets no sashing. Then I put a narrow border around the blocks.

I'd post a graphic, but I can't figure out how and the help section doesn't cover replies.

Good information. I have had trouble with this too.

Yep...what she said....plus when you take that measurement be sure to take it from the center of the block and not the end.

Nothing is perfect, but do love what you do. Practice will make it come closer to what you want and you will be more pleased. There are many good suggestions here that will help.

All these tips are helpful. I will be doing my first "sashing" soon. I did see a chart on here somewhere where it shows doing each individual block. I copied it out and have in my folder, but doing a search I get an error message. Its like only doing certain sides of each block as they line up with the next block that has sashing. It turned out very neatly done and your only working with sashing about the size of your blocks.

Thanks for the tips as have often wondered how to do this