Guide to Standard Headboard Sizes. A good rule of thumb is to extend the headboard to take in at least the extra width of your nightstands or bedside tables. Determine the width of your headboard. Start by measuring the width of your mattress; then add two inches to either side. As shown above, measure and cut your top trim piece. The distance will be the overall width of the headboard at this step. Keeping the top trim flush with the outer leg and the front of the headboard, use 2 nails and glue to fasten in place.
Create a luxurious headboard for your bed with these simple plans. Special thanks to Amy for sharing her photo. (queen sized mattress measures 60 x 80). Cut List:. Twin sized mattresses are typically 38 to 39 inches in width. You’ll want an extra 10-12 inches of material on all sides.