"Throw" is not a size. It is a category, and it stretches from a 50-inch lap blanket to a 60 by 80 that two people can share without an argument. Most listings say "throw blanket" and leave you to work out the rest. Here is what the numbers actually mean.
Throw blanket sizes at a glance
| Type | Typical size | What it actually covers |
|---|---|---|
| Lap throw | 50 x 60 in | A seated adult from the waist down. Good on a chair, short on a sofa. |
| Standard throw | 50 x 70 in | One adult lying down, shoulders to feet, with room to tuck. |
| Oversized throw | 60 x 80 in | Two adults side by side, or one tall adult stretched flat. |
| Bed throw | 90 x 90 in and up | Spans a queen bed edge to edge. This is a blanket, not a throw. |
Length is the number that matters
Width gets listed first, so it gets the attention. Length is what you notice.
Lying on a sofa, you need roughly your height minus ten inches to go from shoulders to feet. At 5 foot 10 that is about 60 inches of coverage - which means a 60-inch throw is exactly enough and not one inch more. Your feet will find the edge every time you shift. Seventy inches is the point where you stop thinking about it.
If you are over six foot, treat 70 inches as your floor rather than your target.
Width only matters if you are sharing
One person needs about 50 inches across. That is true whether you are 5 foot 2 or 6 foot 4, because width covers your shoulders, not your height.
Two people need 60 inches minimum, and 60 is tight. If sharing is the actual use, buy the oversized size and accept that it will be heavier and harder to fold.
Measure the sofa, not the room
If you are draping a throw over the back of a sofa for looks, measure the back cushion width and subtract about a third - you want the throw to break the line, not to curtain it. A 50-inch throw sits well on most three-seat sofas.
If you are draping over an arm, measure from where you want it to start to where you want it to stop, and add six inches so it hangs rather than perches.
A throw is not a bed blanket
A queen mattress is 60 inches wide and 80 long. Any throw under 60 inches across will not span it, and most throws are under 60 inches across. A throw laid across the foot of a bed works. A throw used as the blanket does not.
If you want something for the bed, you are shopping for a coverlet or a blanket, and the sizes start where throw sizes end.
What I actually stock
My baby alpaca throws are 51 by 71 inches, brushed.
That is a one-person size, and I would rather say so plainly. It is generous for a single adult on a sofa - the 71 inches is the reason I chose it over the more common 60. Two people cannot share it comfortably, and on a queen bed it will span the foot but will not reach the sides. If you are shopping for something a couple can get under together, buy wider than mine.
If you are still deciding on fiber rather than size, I wrote a separate piece on how baby alpaca differs from standard alpaca and wool.
