I make lap quilts, my quilts measure 65" to 70" in width to as long as 87" in length.
Why do you call this a lap quilt size?
If this is lap, what is twin?
These would be considered European twin...(as 140-150x200 cm --55-59"x about 80") is the standard twin/single here.
Here's a chart where one person thinks these sizes are twins...
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also
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