Kirkey Auto Racing Seat Sizing Guidelines

Most drivers fit into a standard sized Kirkey Auto Racing Seat. Please measure your hips first one of Kirkey's standard sizes will probably fit you perfectly.

A Kirkey Racing Seat’s width is based on the width of your hips. Using only a straight edge ruler have the driver sit on a bench with legs hanging over the side. Measure the width of the hips through the center line of the body side to side.

Do not measure across the lap of the driver as this will give a larger than required measurement. Take this measurement as the size of the seat you need. If it is 15” then you would order a 15” seat. If it is 15 ¾” go to a 16” seat. Note: some seats are only available in two or three sizes, in this case pick the next size up.

NOTE: Extremely important — All measurements must be taken in absolutely straight lines. Use a yardstick, straight edge ruler or stager gauge if possible. If using a tape measure, DO NOT let it follow the curvature of the body.

Kirkey has built thousands of seats and have optimized the dimensions to fit almost everybody.

If you have further questions or concerns about how a seat will fit you, do the following measurements unless you want to check yourself against the seat dimension drawings (see PDF file attachments on each individual seat listing):

A-Width of Chest- Gives width of seat at Rib Support. Have driver stand with arms raised slightly, measure side to side 1-1/2" below armpits (use two straight edges placed parallel under armpit).

B-Width of hips- Gives width of seat at hip area. Have driver sit on bench or table with legs hanging over side, measure width of hips through center line of body side to side. Do not measure across lap of driver, this will give a wider than required measurement. See the shop drawings for each seat.

C-Height of Armpit- Gives height of rib support. With driver still sitting on bench or table, measure from flat surface to armpit. Make sure drivers shoulders are completely level across back. Make sure driver is sitting with back completely straight.

D-Height of Shoulders- Gives height of shoulder harness opening. With driver sitting in same position as above, measure from flat surface to top of shoulder. If you are using the Hans Device please add 3/4” to the shoulder height.

E-Chest Depth- Gives length of rib supports. Have driver stand with back against wall, measure from wall to front of chest approximately 1-1/2" below armpit.

F-Shoulder Width- Gives width of shoulders for seats with built in shoulder supports. Have driver sit on flat surface and place hands as if they were on the steering wheel in the car . Put two straight edges on each side of the driver 1-1/2" below the flat part of the shoulder - see diagram below.

Kirkey Racing Fabrication

Kirkey Racing Seat Measurement Chart