Measuring for chair feet
There are two ways to measure for a chair foot being fitted to a tubular frame.
Internal measurement - Measure inside edge to inside edge of the tube
External measurement - Measure outside edge to outside edge of the tube
From a supplier's point of view we would prefer to have both these measurements as sometimes the wall thickness of the tube varies from frame to frame
Measuring for table feet
Measuring your table feet is a little more complicated than for chair
Firstly you measure the diameter of the thread the most common size is 8mm making this an M8 thread
Secondly you measure the shank length, this is the length of thread required.
Most table bases may have an existing foot you can measure and supply us this information
If not then use a ruler or calipers to measure the diameter of the thread in the table base
Common thread sizes are: M6, M8, M10 (metric threads) & 1/4", 5/16th and 3/8th (imperial threads)
Measuring for Sled Chair Glides
There several ways to measure for the correct diameter sizing for Sled Chair Glides
One: Use vernier calipers to determine the actual diameter of the tube and then select the appropriate glide
or
Two: Use a flexible tape to measure the circumference of the tube (in mm) and then divide this measurement
by 3.14. This will then give you the diameter.
eg: (circumference) 45mm divided by 3.14 = 14.33mm (select the 14mm glide) etc
8mm glide (fits 8 - 9mm diameter tube)
10mm glide (fits 10 - 11mm diameter tube)
12mm glide (fits 12 - 13mm diameter tube)
14mm glide (fits 14 - 15mm diameter tube)
or
Three: Use a shifting spanner as a caliper in conjunction with a ruler (click on image)
