Rack upright size
2x3 in rack uprights: size, hole sizes and pulley mounts
What 2x3 in tubing measures in millimeters, the hole sizes makers list for it, which pulley mounts name 2x3 fit, and how to check which face has the holes.
Also listed as 2x3 rack, 2 x 3 in tubing
Short answer
A 2x3 in upright is 2 in on one face and 3 in on the other, or 50.8 by 76.2 mm calculated from 25.4 mm per inch. Fringe Sport lists its Sidewing Bottom Pulley for 2x3 tubing with 5/8 in holes, and Surplus Strength lists its UPS Low for 2x3 lower crossmembers. Note which face carries the holes before you order.
Key facts
- Nominal size
- 2 x 3 in[1]
- Calculated metric size
- 50.8 x 76.2 mm, calculated from 25.4 mm per inch[2]
- Often confused with
- Not confirmed
- Hole sizes makers list
- 5/8 in (Fringe's Sidewing list); 1 in or 5/8 in (Surplus Strength UPS Low)[1][3]
- Pulley mounts listing this size
- Fringe Sport Sidewing Bottom Pulley; Surplus Strength UPS Low (lower crossmembers with a top height of at least 6.75 in)[1][3]
- Mounts that exclude it
- Not confirmed
- How to check yours
- Measure the outside width of one upright, as Fringe advises, on both faces, and note which face carries the holes[1]
- Not confirmed
- Not confirmed
Watch out for
- Fringe lists only 5/8 in holes for 2x3 tubing.
- Surplus's 2x3 fit is for lower crossmembers with a top height of at least 6.75 in, not for any 2x3 tube.
- Each maker's list covers its own product only; it does not mean every 2x3 rack fits.
Questions
Which pulley mounts list 2x3 tubing?
Fringe Sport lists its Sidewing Bottom Pulley for 2x3 tubing with 5/8 in holes, and Surplus Strength lists its UPS Low for 2x3 lower crossmembers at least 6.75 in tall with 1 in or 5/8 in holes.[1][3]
How big is 2x3 tubing in millimeters?
2 x 3 in is 50.8 x 76.2 mm, calculated from 25.4 mm per inch. Measure your own upright, since a maker's tubing may differ from the nominal size.[2]