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good to know measurements in design

Welcome to All in the Detail... I am so glad you are here!




Have you ever looked at your coffee table and thought it just doesn’t look right? Or maybe you were installing a light fixture above your table and weren’t quite sure how high it should hang or how large it should be? I’ve been asked these questions so many times I can’t count them. I of course can help you out on any of these but if I’m not around… 


Here’s a great book I found that can help:

by Elaine Griffin (you can find it here on Amazon and yes, it’s very affordable).

In additional to providing design advice in a very approachable manner, Ms. Griffin gives Rule of Thumb measurements for everything from the correct height of your bedside lamp to where to hang curtains in relation to the window! For example, did you know that coffee tables look best when they are 1″-2″ less than the height of the sofa’s seat cushion? Or that you should leave 1 1/2″ -2″ of spacing between pictures in an art grouping?

Here are just a few of her great ‘Rules of Measurement’ to know:

In the Living Room

You need 26”-36” clear as a pathway to walk comfortably through a room or 36″-48″ for an airy feeling

If you’re covering the entire room with one area rug, leave 12″-18″ clear all around to the wall. In smaller rooms, 7″-12″ will work

Choose side tables that are about 2” less than the height of the sofa arm

In a small grouping, 15″ by 24″ or smaller can be a great size for a coffee table

If using art above a sofa, fill at least 50%-60% of the 5-foot high space above the sofa


In the Dining Room

Wainscoting should be about 36” – 48” above the finished floor

Chair rails should be 34”-36” above the floor

Dining tables should be 30” high

Allow 18” of table width per person

For rectangular tables, you’ll need a table that is at least 48″ long to seat 6 people, 72″ for 8 and 96″ to seat 12 people

Dining seating should be 16”-18” high from the floor to the top of the seat

To pick the right size light fixture for above a table, you can either
  •     divide the width of your dining table by two to get an approximate chandelier diameter OR
  •   add the room’s length and width in feet; the sum equals an approximate chandelier diameter in inches

 Chandeliers should hang 30”-36” above the table surface

In general, center sconces’ back plates between 60”-64” above the floor


In the Bedroom

If you have space for a bench, box, chest or trunk at the end of a bed, it should be slightly lower than the height of the bed and no more than 15”-21” deep

For most beds, 24”-27” is the ideal height for a nightstand

For a King-size bed, nightstands should be at least 36” wide

Area rugs underneath beds should extend 6”-12” beyond the outer edges of the nightstands and the end of the bed

Swing arm lamps above bedside tables should be mounted no farther than 3” out from the edge of the headboard with the bottom of the shade about 20” above the top of the mattress

Table lamps should also have the bottom of the shade about 20” above the top of the mattress

Use a 47″ tall headboard if you don’t want much headboard to show above your pillows or 52″ and up if you want to show more headboard above the pillows


So, does this mean that if you aren’t following these measurements your design is wrong? Of course not! I always say that design is not a ‘cookie cutter method’… if it feels good to you and you like how it looks, that’s all that matters. But if you’re unsure as to where to begin, these measurements can provide you with a good starting point.

*But... Just for kicks and giggles, take the tape measure around your home and see how well you did on your own!